Subject Analysis
Japan
Career
1928 – 2025
Best year
2018
Total points
8306
Best results
2× 1. Olympic Games
All-time rank
#5
10-year rank
#8
Ranking Development
Points distribution
Disciplines
Contests
Categories
| Year | Contest | Discipline | Category | Position | Points | Name |
|---|---|---|---|---|---|---|
| 2025 | Asian Championship | 800m freestyle | Women | 1 | 7 | Tanimoto Haruno |
| 2025 | World Championship Open Water | 3 km knockout sprints | Women | 1 | 10 | Ichika Kajimoto |
| 2025 | World Championship Open Water | 5 km | Women | 3 | 3 | Ichika Kajimoto |
| 2025 | Asian Championship | 4x100m medley | M/W | 2 | 12 | – |
| 2025 | Asian Championship | 200m backstroke | Men | 2 | 4 | Rui Yoshida |
| 2025 | Asian Championship | 200m breaststroke | Men | 2 | 4 | Iori Miyazaki |
| 2025 | Asian Championship | 200m butterfly | Men | 2 | 4 | Ryo Kuratsuka |
| 2025 | World Championship | 200m breaststroke | Men | 2 | 6 | Ippei Watanabe |
| 2025 | Asian Championship | 200m freestyle | Men | 3 | 2 | Hinata Ando |
| 2025 | World Championship | 200m freestyle | Men | 3 | 3 | Tatsuya Murasa |
| 2025 | Asian Championship | 400m individual medley | Men | 3 | 2 | Shun Tanaka |
| 2025 | World Championship | 400m individual medley | Men | 2 | 6 | Tomoyuki Matsushita |
| 2025 | Asian Championship | 100m backstroke | Women | 2 | 4 | Misaki Kasahara |
| 2025 | Asian Championship | 100m breaststroke | Women | 3 | 2 | Koharu Nakazawa |
| 2025 | Asian Championship | 200m backstroke | Women | 1 | 7 | Misaki Kasahara |
| 2025 | Asian Championship | 200m breaststroke | Women | 1 | 7 | Mana Ishikawa |
| 2025 | Asian Championship | 200m breaststroke | Women | 2 | 4 | Koharu Nakazawa |
| 2025 | Asian Championship | 200m butterfly | Women | 2 | 4 | Manami Miyamoto |
| 2025 | Asian Championship | 200m individual medley | Women | 1 | 7 | Mana Ishikawa |
| 2025 | Asian Championship | 400m freestyle | Women | 1 | 7 | Tanimoto Haruno |
| 2025 | Asian Championship | 400m individual medley | Women | 2 | 4 | Koharu Nakazawa |
| 2025 | Asian Championship | 4x100m medley | Women | 2 | 12 | – |
| 2025 | World Championship | 400m individual medley | Women | 3 | 3 | Mio Narita |
| 2025 | Asian Championship | 50m backstroke | Women | 3 | 2 | Misaki Kasahara |
| 2024 | World Championship 25m | 200m breaststroke | Men | 3 | 1 | Yamato Fukasawa |
| 2024 | Olympic Games | 400m individual medley | Men | 2 | 18 | Tomoyuki Matsushita |
| 2024 | World Championship | 200m butterfly | Men | 1 | 10 | Tomoru Honda |
| 2024 | World Championship | 400m individual medley | Men | 3 | 3 | Daiya Seto |
| 2023 | World Championship | 200m butterfly | Men | 3 | 3 | Tomoru Honda |
| 2023 | World Championship | 400m individual medley | Men | 3 | 3 | Daiya Seto |
| 2022 | Asian Games | 400m freestyle | Women | 3 | 2 | Waka Kobori |
| 2022 | Asian Games | 400m individual medley | Women | 2 | 4 | Ageha Tanigawa |
| 2022 | Asian Games | 400m individual medley | Women | 3 | 2 | Mio Narita |
| 2022 | Asian Games | 4x100m freestyle | Women | 2 | 12 | – |
| 2022 | Asian Games | 4x100m medley | Women | 1 | 21 | – |
| 2022 | Asian Games | 4x100m medley | M/W | 2 | 12 | – |
| 2022 | Asian Games | 4x200m freestyle | Women | 2 | 12 | – |
| 2022 | World Championship 25m | 1500m freestyle | Women | 2 | 2 | Miyu Namba |
| 2022 | Asian Games | 50m backstroke | Women | 3 | 2 | Miki Takahashi |
| 2022 | Asian Games | 50m breaststroke | Women | 2 | 4 | Satomi Suzuki |
| 2022 | Asian Games | 50m butterfly | Women | 3 | 2 | Rikako Ikee |
| 2022 | Asian Games | 800m freestyle | Women | 2 | 4 | Waka Kobori |
| 2022 | World Championship 25m | 400m individual medley | Women | 3 | 1 | Waka Kobori |
| 2022 | World Championship | 100m butterfly | Men | 2 | 6 | Naoki Mizunuma |
| 2022 | World Championship 25m | 800m freestyle | Women | 3 | 1 | Miyu Namba |
| 2022 | World Championship | 200m breaststroke | Men | 2 | 6 | Yu Hanaguruma |
| 2022 | World Championship | 200m butterfly | Men | 3 | 3 | Tomoru Honda |
| 2022 | World Championship | 200m individual medley | Men | 3 | 3 | Daiya Seto |
| 2022 | Asian Games | 100m backstroke | Men | 2 | 4 | Ryosuke Irie |
| 2022 | Asian Games | 100m butterfly | Men | 1 | 7 | Katsuhiro Matsumoto |
| 2022 | Asian Games | 1500m freestyle | Men | 3 | 2 | Shogo Takeda |
| 2022 | Asian Games | 200m backstroke | Men | 3 | 2 | Hidekazu Takehara |
| 2022 | Asian Games | 200m breaststroke | Men | 3 | 2 | Ippei Watanabe |
| 2022 | Asian Games | 200m butterfly | Men | 1 | 7 | Tomoru Honda |
| 2022 | Asian Games | 200m individual medley | Men | 3 | 2 | Daiya Seto |
| 2022 | Asian Games | 400m individual medley | Men | 1 | 7 | Tomoru Honda |
| 2022 | Asian Games | 400m individual medley | Men | 2 | 4 | Daiya Seto |
| 2022 | Asian Games | 4x100m freestyle | Men | 3 | 6 | – |
| 2022 | Asian Games | 4x100m medley | Men | 3 | 6 | – |
| 2022 | Asian Games | 4x200m freestyle | Men | 3 | 6 | – |
| 2022 | World Championship 25m | 200m breaststroke | Men | 1 | 4 | Daiya Seto |
| 2022 | Asian Games | 50m backstroke | Men | 3 | 2 | Ryosuke Irie |
| 2022 | World Championship 25m | 200m butterfly | Men | 2 | 2 | Daiya Seto |
| 2022 | World Championship 25m | 400m individual medley | Men | 1 | 4 | Daiya Seto |
| 2022 | Asian Games | 100m breaststroke | Women | 1 | 7 | Reona Aoki |
| 2022 | Asian Games | 100m breaststroke | Women | 2 | 4 | Satomi Suzuki |
| 2022 | Asian Games | 100m butterfly | Women | 2 | 4 | Ai Soma |
| 2022 | Asian Games | 1500m freestyle | Women | 3 | 2 | Yumi Moriyama |
| 2022 | Asian Games | 200m breaststroke | Women | 3 | 2 | Runa Imai |
| 2022 | Asian Games | 200m butterfly | Women | 3 | 2 | Hiroko Makino |
| 2021 | World Championship 25m | 200m individual medley | Men | 1 | 4 | Daiya Seto |
| 2021 | World Championship 25m | 400m individual medley | Men | 1 | 4 | Daiya Seto |
| 2020 | Olympic Games | 200m butterfly | Men | 2 | 18 | Tomoru Honda |
| 2020 | Olympic Games | 200m individual medley | Women | 1 | 30 | Yui Ohashi |
| 2020 | Olympic Games | 400m individual medley | Women | 1 | 30 | Yui Ohashi |
| 2019 | World Championship | 200m breaststroke | Men | 3 | 3 | Ippei Watanabe |
| 2019 | World Championship | 200m butterfly | Men | 2 | 6 | Daiya Seto |
| 2019 | World Championship | 200m freestyle | Men | 2 | 6 | Katsuhiro Matsumoto |
| 2019 | World Championship | 200m individual medley | Men | 1 | 10 | Daiya Seto |
| 2019 | World Championship | 400m individual medley | Men | 1 | 10 | Daiya Seto |
| 2019 | World Championship | 400m individual medley | Women | 3 | 3 | Yui Ohashi |
| 2018 | Asian Games | 200m backstroke | Men | 2 | 4 | Ryosuke Irie |
| 2018 | Asian Games | 200m backstroke | Men | 3 | 2 | Keita Sunama |
| 2018 | Asian Games | 200m breaststroke | Men | 1 | 7 | Yasuhiro Koseki |
| 2018 | Pan Pacific Championship | 4x100m mixed medley | M/W | 2 | 12 | – |
| 2018 | Asian Games | 200m breaststroke | Men | 2 | 4 | Ippei Watanabe |
| 2018 | Asian Games | 200m butterfly | Men | 1 | 7 | Daiya Seto |
| 2018 | Asian Games | 200m butterfly | Men | 2 | 4 | Nao Horomura |
| 2018 | Pan Pacific Championship | 100m backstroke | Men | 2 | 4 | Ryosuke Irie |
| 2018 | Asian Games | 200m freestyle | Men | 2 | 4 | Katsuhiro Matsumoto |
| 2018 | Pan Pacific Championship | 100m breaststroke | Men | 1 | 7 | Yasuhiro Koseki |
| 2018 | Asian Games | 200m individual medley | Men | 2 | 4 | Kosuke Hagino |
| 2018 | Asian Games | 400m freestyle | Men | 2 | 4 | Naito Ehara |
| 2018 | Asian Games | 400m freestyle | Men | 3 | 2 | Kosuke Hagino |
| 2018 | Asian Games | 400m individual medley | Men | 1 | 7 | Daiya Seto |
| 2018 | Asian Games | 400m individual medley | Men | 2 | 4 | Kosuke Hagino |
| 2018 | Asian Games | 4x100m freestyle | Men | 1 | 21 | – |
| 2018 | Pan Pacific Championship | 200m backstroke | Men | 2 | 4 | Ryosuke Irie |
| 2018 | Asian Games | 4x100m medley | Men | 2 | 12 | – |
| 2018 | Pan Pacific Championship | 200m breaststroke | Men | 1 | 7 | Ippei Watanabe |
| 2018 | Asian Games | 4x200m freestyle | Men | 1 | 21 | – |
| 2018 | Pan Pacific Championship | 200m butterfly | Men | 1 | 7 | Daiya Seto |
| 2018 | Asian Games | 50m backstroke | Men | 2 | 4 | Ryosuke Irie |
| 2018 | Asian Games | 50m breaststroke | Men | 1 | 7 | Yasuhiro Koseki |
| 2018 | Pan Pacific Championship | 200m freestyle | Men | 3 | 2 | Katsuhiro Matsumoto |
| 2018 | Pan Pacific Championship | 200m individual medley | Men | 3 | 2 | Kosuke Hagino |
| 2018 | Asian Games | 50m freestyle | Men | 2 | 4 | Katsumi Nakamura |
| 2018 | Asian Games | 50m freestyle | Men | 3 | 2 | Shunichi Nakao |
| 2018 | Pan Pacific Championship | 400m individual medley | Men | 2 | 4 | Kosuke Hagino |
| 2018 | Asian Games | 800m freestyle | Men | 2 | 4 | Shogo Takeda |
| 2018 | Pan Pacific Championship | 400m individual medley | Men | 3 | 2 | Daiya Seto |
| 2018 | Asian Games | 100m backstroke | Women | 1 | 7 | Natsumi Sakai |
| 2018 | Asian Games | 100m backstroke | Women | 2 | 4 | Anna Konishi |
| 2018 | Pan Pacific Championship | 4x100m freestyle | Men | 3 | 6 | – |
| 2018 | Asian Games | 100m breaststroke | Women | 1 | 7 | Satomi Suzuki |
| 2018 | Pan Pacific Championship | 4x100m medley | Men | 2 | 12 | – |
| 2018 | Asian Games | 100m breaststroke | Women | 2 | 4 | Reona Aoki |
| 2018 | Asian Games | 100m butterfly | Women | 1 | 7 | Rikako Ikee |
| 2018 | Pan Pacific Championship | 4x200m freestyle | Men | 3 | 6 | – |
| 2018 | Asian Games | 100m freestyle | Women | 1 | 7 | Rikako Ikee |
| 2018 | Asian Games | 1500m freestyle | Women | 3 | 2 | Waka Kobori |
| 2018 | Asian Games | 200m backstroke | Women | 2 | 4 | Natsumi Sakai |
| 2018 | Asian Games | 200m breaststroke | Women | 1 | 7 | Kanako Watanabe |
| 2018 | Asian Games | 200m breaststroke | Women | 3 | 2 | Reona Aoki |
| 2018 | Asian Games | 200m butterfly | Women | 2 | 4 | Sachi Mochida |
| 2018 | Pan Pacific Championship | 100m breaststroke | Women | 3 | 2 | Reona Aoki |
| 2018 | Asian Games | 200m butterfly | Women | 3 | 2 | Suzuka Hasegawa |
| 2018 | Pan Pacific Championship | 100m butterfly | Women | 1 | 7 | Rikako Ikee |
| 2018 | Asian Games | 200m freestyle | Women | 3 | 2 | Chihiro Igarashi |
| 2018 | Asian Games | 200m individual medley | Women | 2 | 4 | Yui Ohashi |
| 2018 | Asian Games | 200m individual medley | Women | 3 | 2 | Miho Teramura |
| 2018 | Asian Games | 400m freestyle | Women | 3 | 2 | Chihiro Igarashi |
| 2018 | Asian Games | 400m individual medley | Women | 1 | 7 | Yui Ohashi |
| 2018 | Asian Games | 400m individual medley | Women | 3 | 2 | Sakiko Shimizu |
| 2018 | Asian Games | 4x100m freestyle | Women | 1 | 21 | – |
| 2018 | Pan Pacific Championship | 200m breaststroke | Women | 3 | 2 | Satomi Suzuki |
| 2018 | Asian Games | 4x100m medley | Women | 1 | 21 | – |
| 2018 | Pan Pacific Championship | 200m butterfly | Women | 2 | 4 | Sachi Mochida |
| 2018 | Asian Games | 4x100m medley | M/W | 2 | 12 | – |
| 2018 | Pan Pacific Championship | 200m freestyle | Women | 2 | 4 | Rikako Ikee |
| 2018 | Pan Pacific Championship | 200m individual medley | Women | 1 | 7 | Yui Ohashi |
| 2018 | Asian Games | 4x200m freestyle | Women | 2 | 12 | – |
| 2018 | Pan Pacific Championship | 200m individual medley | Women | 3 | 2 | Miho Teramura |
| 2018 | Asian Games | 50m backstroke | Women | 3 | 2 | Natsumi Sakai |
| 2018 | Pan Pacific Championship | 400m individual medley | Women | 1 | 7 | Yui Ohashi |
| 2018 | Asian Games | 50m breaststroke | Women | 1 | 7 | Satomi Suzuki |
| 2018 | Pan Pacific Championship | 400m individual medley | Women | 3 | 2 | Sakiko Shimizu |
| 2018 | Asian Games | 50m butterfly | Women | 1 | 7 | Rikako Ikee |
| 2018 | Asian Games | 50m freestyle | Women | 1 | 7 | Rikako Ikee |
| 2018 | Pan Pacific Championship | 4x100m medley | Women | 3 | 6 | – |
| 2018 | Asian Games | 800m freestyle | Women | 3 | 2 | Waka Kobori |
| 2018 | World Championship 25m | 100m breaststroke | Men | 3 | 1 | Yasuhiro Koseki |
| 2018 | World Championship 25m | 200m butterfly | Men | 1 | 4 | Daiya Seto |
| 2018 | World Championship 25m | 200m individual medley | Men | 3 | 1 | Hiromasa Fujimori |
| 2018 | World Championship 25m | 400m individual medley | Men | 1 | 4 | Daiya Seto |
| 2018 | World Championship 25m | 4x100m medley | Men | 3 | 3 | – |
| 2018 | World Championship 25m | 100m individual medley | Women | 2 | 2 | Runa Imai |
| 2018 | World Championship 25m | 200m butterfly | Women | 3 | 1 | Suzuka Hasegawa |
| 2018 | Asian Games | 100m backstroke | Men | 2 | 4 | Ryosuke Irie |
| 2018 | Asian Games | 100m breaststroke | Men | 1 | 7 | Yasuhiro Koseki |
| 2018 | Asian Games | 100m butterfly | Men | 3 | 2 | Yuki Kobori |
| 2018 | Asian Games | 100m freestyle | Men | 1 | 7 | Shinri Shioura |
| 2018 | Asian Games | 100m freestyle | Men | 2 | 4 | Katsumi Nakamura |
| 2017 | World Championship | 200m breaststroke | Men | 2 | 6 | Yasuhiro Koseki |
| 2017 | World Championship | 200m breaststroke | Men | 3 | 3 | Ippei Watanabe |
| 2017 | World Championship | 200m butterfly | Men | 3 | 3 | Daiya Seto |
| 2017 | World Championship | 200m individual medley | Men | 2 | 6 | Kosuke Hagino |
| 2017 | World Championship | 400m individual medley | Men | 3 | 3 | Daiya Seto |
| 2017 | World Championship | 50m backstroke | Men | 2 | 6 | Junya Koga |
| 2017 | World Championship | 200m individual medley | Women | 2 | 6 | Yui Ohashi |
| 2016 | Olympic Games | 400m individual medley | Men | 1 | 30 | Kosuke Hagino |
| 2016 | Olympic Games | 400m individual medley | Men | 3 | 6 | Daiya Seto |
| 2016 | Olympic Games | 4x200m freestyle | Men | 3 | 18 | – |
| 2016 | Olympic Games | 200m breaststroke | Women | 1 | 30 | Rie Kaneto |
| 2016 | Olympic Games | 200m butterfly | Women | 3 | 6 | Natsumi Hoshi |
| 2016 | Asian Championship | 100m backstroke | Men | 3 | 2 | Takeshi Kawamoto |
| 2016 | Asian Championship | 100m breaststroke | Men | 1 | 7 | Ippei Watanabe |
| 2016 | Asian Championship | 100m breaststroke | Men | 2 | 4 | Yasuhiro Koseki |
| 2016 | World Championship 25m | 4x50m mixed medley | M/W | 3 | 3 | – |
| 2016 | Asian Championship | 100m butterfly | Men | 2 | 4 | Masato Sakai |
| 2016 | Asian Championship | 100m butterfly | Men | 2 | 4 | Takeshi Kawamoto |
| 2016 | Asian Championship | 100m freestyle | Men | 2 | 4 | Katsumi Nakamura |
| 2016 | Asian Championship | 1500m freestyle | Men | 3 | 2 | Shogo Takeda |
| 2016 | World Championship 25m | 100m freestyle | Men | 2 | 2 | Shinri Shioura |
| 2016 | Asian Championship | 200m backstroke | Men | 3 | 2 | Keita Sunama |
| 2016 | Asian Championship | 200m breaststroke | Men | 1 | 7 | Ippei Watanabe |
| 2016 | World Championship 25m | 100m individual medley | Men | 2 | 2 | Daiya Seto |
| 2016 | World Championship 25m | 100m individual medley | Men | 3 | 1 | Shinri Shioura |
| 2016 | Asian Championship | 200m butterfly | Men | 1 | 7 | Masato Sakai |
| 2016 | Asian Championship | 200m butterfly | Men | 2 | 4 | Daiya Seto |
| 2016 | Asian Championship | 200m freestyle | Men | 3 | 2 | Katsuhiro Matsumoto |
| 2016 | World Championship 25m | 200m backstroke | Men | 3 | 1 | Masaki Kaneko |
| 2016 | Asian Championship | 200m individual medley | Men | 2 | 4 | Daiya Seto |
| 2016 | Asian Championship | 200m individual medley | Men | 3 | 2 | Keita Sunama |
| 2016 | Asian Championship | 400m freestyle | Men | 2 | 4 | Tsubasa Amai |
| 2016 | World Championship 25m | 200m butterfly | Men | 3 | 1 | Daiya Seto |
| 2016 | Asian Championship | 400m individual medley | Men | 1 | 7 | Daiya Seto |
| 2016 | Asian Championship | 4x100m freestyle | Men | 2 | 12 | – |
| 2016 | World Championship 25m | 200m individual medley | Men | 3 | 1 | Daiya Seto |
| 2016 | Asian Championship | 4x100m medley | Men | 2 | 12 | – |
| 2016 | Asian Championship | 4x200m freestyle | Men | 1 | 21 | – |
| 2016 | World Championship 25m | 400m individual medley | Men | 1 | 4 | Daiya Seto |
| 2016 | Asian Championship | 50m backstroke | Men | 2 | 4 | Shunichi Nakao |
| 2016 | Asian Championship | 50m breaststroke | Men | 1 | 7 | Yasuhiro Koseki |
| 2016 | Asian Championship | 50m breaststroke | Men | 2 | 4 | Koichiro Okazaki |
| 2016 | Asian Championship | 50m butterfly | Men | 1 | 7 | Masayuki Kishida |
| 2016 | World Championship 25m | 4x100m medley | Men | 3 | 3 | – |
| 2016 | Asian Championship | 50m butterfly | Men | 3 | 2 | Takeshi Kawamoto |
| 2016 | Asian Championship | 50m freestyle | Men | 1 | 7 | Katsumi Nakamura |
| 2016 | World Championship 25m | 4x200m freestyle | Men | 3 | 3 | – |
| 2016 | Asian Championship | 50m freestyle | Men | 3 | 2 | Shunichi Nakao |
| 2016 | World Championship 25m | 4x50m freestyle | Men | 3 | 3 | – |
| 2016 | Asian Championship | 100m backstroke | Women | 3 | 2 | Emi Moronuki |
| 2016 | Asian Championship | 100m breaststroke | Women | 1 | 7 | Misaki Sekiguchi |
| 2016 | Asian Championship | 100m breaststroke | Women | 2 | 4 | Reona Aoki |
| 2016 | World Championship 25m | 50m backstroke | Men | 1 | 4 | Junya Koga |
| 2016 | Asian Championship | 100m butterfly | Women | 1 | 7 | Rikako Ikee |
| 2016 | Asian Championship | 100m butterfly | Women | 3 | 2 | Yui Yamane |
| 2016 | Asian Championship | 100m freestyle | Women | 2 | 4 | Rikako Ikee |
| 2016 | Asian Championship | 200m backstroke | Women | 3 | 2 | Rio Shirai |
| 2016 | Asian Championship | 200m breaststroke | Women | 1 | 7 | Reona Aoki |
| 2016 | Asian Championship | 200m breaststroke | Women | 3 | 2 | Misaki Sekiguchi |
| 2016 | Asian Championship | 200m butterfly | Women | 3 | 2 | Miyu Nakano |
| 2016 | Asian Championship | 200m individual medley | Women | 1 | 7 | Yui Ohashi |
| 2016 | World Championship 25m | 100m butterfly | Women | 3 | 1 | Rikako Ikee |
| 2016 | Asian Championship | 200m individual medley | Women | 2 | 4 | Runa Imai |
| 2016 | Asian Championship | 400m freestyle | Women | 2 | 4 | Chihiro Igarashi |
| 2016 | Asian Championship | 400m individual medley | Women | 2 | 4 | Sakiko Shimizu |
| 2016 | Asian Championship | 400m individual medley | Women | 3 | 2 | Yui Ohashi |
| 2016 | Asian Championship | 4x100m freestyle | Women | 2 | 12 | – |
| 2016 | Asian Championship | 4x100m medley | Women | 1 | 21 | – |
| 2016 | Asian Championship | 4x200m freestyle | Women | 2 | 12 | – |
| 2016 | Asian Championship | 50m backstroke | Women | 3 | 2 | Emi Moronuki |
| 2016 | Asian Championship | 50m breaststroke | Women | 1 | 7 | Satomi Suzuki |
| 2016 | Asian Championship | 50m breaststroke | Women | 2 | 4 | Misaki Sekiguchi |
| 2016 | Asian Championship | 50m butterfly | Women | 1 | 7 | Rikako Ikee |
| 2016 | World Championship 25m | 400m freestyle | Women | 3 | 1 | Chihiro Igarashi |
| 2016 | Asian Championship | 50m freestyle | Women | 1 | 7 | Rikako Ikee |
| 2016 | World Championship 25m | 50m butterfly | Women | 3 | 1 | Rikako Ikee |
| 2016 | Olympic Games | 200m butterfly | Men | 2 | 18 | Masato Sakai |
| 2016 | Olympic Games | 200m individual medley | Men | 2 | 18 | Kosuke Hagino |
| 2015 | World Championship | 200m breaststroke | Women | 1 | 10 | Kanako Watanabe |
| 2015 | World Championship | 200m butterfly | Women | 1 | 10 | Natsumi Hoshi |
| 2015 | World Championship | 200m individual medley | Women | 2 | 6 | Kanako Watanabe |
| 2015 | World Championship | 400m individual medley | Men | 1 | 10 | Daiya Seto |
| 2014 | Asian Games | 4x100m medley | Men | 2 | 12 | – |
| 2014 | Asian Games | 4x200m freestyle | Men | 1 | 21 | – |
| 2014 | Asian Games | 50m backstroke | Men | 1 | 7 | Junya Koga |
| 2014 | Asian Games | 50m backstroke | Men | 2 | 4 | Ryosuke Irie |
| 2014 | Asian Games | 50m breaststroke | Men | 2 | 4 | Yasuhiro Koseki |
| 2014 | Pan Pacific Championship | 100m breaststroke | Women | 2 | 4 | Kanako Watanabe |
| 2014 | Asian Games | 50m freestyle | Men | 2 | 4 | Shinri Shioura |
| 2014 | Asian Games | 50m freestyle | Men | 3 | 2 | Kenta Ito |
| 2014 | Asian Games | 100m breaststroke | Women | 2 | 4 | Kanako Watanabe |
| 2014 | Pan Pacific Championship | 200m breaststroke | Women | 1 | 7 | Kanako Watanabe |
| 2014 | Asian Games | 100m freestyle | Women | 3 | 2 | Miki Uchida |
| 2014 | Pan Pacific Championship | 200m breaststroke | Women | 2 | 4 | Rie Kaneto |
| 2014 | Asian Games | 200m backstroke | Women | 1 | 7 | Sayaka Akase |
| 2014 | Pan Pacific Championship | 200m butterfly | Women | 2 | 4 | Natsumi Hoshi |
| 2014 | Asian Games | 200m breaststroke | Women | 1 | 7 | Kanako Watanabe |
| 2014 | Asian Games | 200m breaststroke | Women | 2 | 4 | Rie Kaneto |
| 2014 | Asian Games | 200m butterfly | Women | 2 | 4 | Natsumi Hoshi |
| 2014 | Asian Games | 200m butterfly | Women | 3 | 2 | Miyu Nakano |
| 2014 | Asian Games | 200m freestyle | Women | 2 | 4 | Chihiro Igarashi |
| 2014 | Asian Games | 200m individual medley | Women | 2 | 4 | Kanako Watanabe |
| 2014 | Asian Games | 200m individual medley | Women | 3 | 2 | Miho Teramura |
| 2014 | Asian Games | 400m freestyle | Women | 3 | 2 | Chihiro Igarashi |
| 2014 | Pan Pacific Championship | 4x100m freestyle | Women | 3 | 6 | – |
| 2014 | Asian Games | 400m individual medley | Women | 2 | 4 | Sakiko Shimizu |
| 2014 | Asian Games | 4x100m freestyle | Women | 2 | 12 | – |
| 2014 | Asian Games | 4x100m medley | Women | 1 | 21 | – |
| 2014 | Asian Games | 4x200m freestyle | Women | 2 | 12 | – |
| 2014 | Asian Games | 50m backstroke | Women | 3 | 2 | Miyuki Takemura |
| 2014 | Asian Games | 50m breaststroke | Women | 1 | 7 | Satomi Suzuki |
| 2014 | Asian Games | 50m freestyle | Women | 2 | 4 | Miki Uchida |
| 2014 | World Championship 25m | 100m backstroke | Men | 3 | 1 | Ryosuke Irie |
| 2014 | Asian Games | 800m freestyle | Women | 3 | 2 | Asami Chida |
| 2014 | World Championship 25m | 200m butterfly | Men | 2 | 2 | Daiya Seto |
| 2014 | World Championship 25m | 200m individual medley | Men | 1 | 4 | Kosuke Hagino |
| 2014 | World Championship 25m | 200m individual medley | Men | 3 | 1 | Daiya Seto |
| 2014 | World Championship 25m | 400m individual medley | Men | 1 | 4 | Daiya Seto |
| 2014 | World Championship 25m | 400m individual medley | Men | 2 | 2 | Kosuke Hagino |
| 2014 | World Championship 25m | 200m backstroke | Women | 3 | 1 | Sayaka Akase |
| 2014 | World Championship 25m | 200m breaststroke | Women | 1 | 4 | Kanako Watanabe |
| 2014 | World Championship 25m | 200m breaststroke | Women | 2 | 2 | Rie Kaneto |
| 2014 | World Championship 25m | 4x100m medley | Women | 3 | 3 | – |
| 2014 | World Swimmer of the Year | Awards | Men | 1 | 2 | Kosuke Hagino |
| 2014 | Pan Pacific Championship | 100m backstroke | Men | 1 | 7 | Ryosuke Irie |
| 2014 | Pan Pacific Championship | 100m breaststroke | Men | 1 | 7 | Yasuhiro Koseki |
| 2014 | Asian Games | 100m backstroke | Men | 1 | 7 | Ryosuke Irie |
| 2014 | Asian Games | 100m backstroke | Men | 3 | 2 | Kosuke Hagino |
| 2014 | Pan Pacific Championship | 100m butterfly | Men | 3 | 2 | Hirofumi Ikebata |
| 2014 | Asian Games | 100m breaststroke | Men | 2 | 4 | Yasuhiro Koseki |
| 2014 | Asian Games | 100m butterfly | Men | 3 | 2 | Hirofumi Ikebata |
| 2014 | Asian Games | 100m freestyle | Men | 2 | 4 | Shinri Shioura |
| 2014 | Asian Games | 100m freestyle | Men | 3 | 2 | Rammaru Harada |
| 2014 | Pan Pacific Championship | 200m backstroke | Men | 2 | 4 | Ryosuke Irie |
| 2014 | Asian Games | 1500m freestyle | Men | 2 | 4 | Kohei Yamamoto |
| 2014 | Pan Pacific Championship | 200m breaststroke | Men | 1 | 7 | Yasuhiro Koseki |
| 2014 | Asian Games | 200m backstroke | Men | 1 | 7 | Ryosuke Irie |
| 2014 | Pan Pacific Championship | 200m breaststroke | Men | 3 | 2 | Kazuki Kohinata |
| 2014 | Pan Pacific Championship | 200m butterfly | Men | 1 | 7 | Daiya Seto |
| 2014 | Asian Games | 200m backstroke | Men | 3 | 2 | Kosuke Hagino |
| 2014 | Asian Games | 200m breaststroke | Men | 2 | 4 | Kazuki Kohinata |
| 2014 | Asian Games | 200m breaststroke | Men | 3 | 2 | Yasuhiro Koseki |
| 2014 | Pan Pacific Championship | 200m freestyle | Men | 2 | 4 | Kosuke Hagino |
| 2014 | Asian Games | 200m butterfly | Men | 1 | 7 | Daiya Seto |
| 2014 | Asian Games | 200m butterfly | Men | 2 | 4 | Kenta Hirai |
| 2014 | Pan Pacific Championship | 200m individual medley | Men | 1 | 7 | Kosuke Hagino |
| 2014 | Asian Games | 200m freestyle | Men | 1 | 7 | Kosuke Hagino |
| 2014 | Pan Pacific Championship | 200m individual medley | Men | 3 | 2 | Daiya Seto |
| 2014 | Pan Pacific Championship | 400m freestyle | Men | 2 | 4 | Kosuke Hagino |
| 2014 | Asian Games | 200m individual medley | Men | 1 | 7 | Kosuke Hagino |
| 2014 | Asian Games | 200m individual medley | Men | 2 | 4 | Hiromasa Fujimori |
| 2014 | Pan Pacific Championship | 400m individual medley | Men | 1 | 7 | Kosuke Hagino |
| 2014 | Asian Games | 400m freestyle | Men | 2 | 4 | Kosuke Hagino |
| 2014 | Asian Games | 400m individual medley | Men | 1 | 7 | Kosuke Hagino |
| 2014 | Asian Games | 400m individual medley | Men | 3 | 2 | Daiya Seto |
| 2014 | Pan Pacific Championship | 4x100m medley | Men | 2 | 12 | – |
| 2014 | Asian Games | 4x100m freestyle | Men | 2 | 12 | – |
| 2014 | Pan Pacific Championship | 4x200m freestyle | Men | 2 | 12 | – |
| 2013 | World Championship | 200m individual medley | Men | 2 | 6 | Kosuke Hagino |
| 2013 | World Championship | 400m freestyle | Men | 2 | 6 | Kosuke Hagino |
| 2013 | World Championship | 400m individual medley | Men | 1 | 10 | Daiya Seto |
| 2013 | World Championship | 4x100m medley | Men | 3 | 9 | – |
| 2013 | World Championship | 100m backstroke | Women | 3 | 3 | Aya Terakawa |
| 2013 | World Championship | 50m backstroke | Women | 3 | 3 | Aya Terakawa |
| 2012 | Asian Championship | 200m individual medley | Men | 3 | 2 | Keita Sunama |
| 2012 | Asian Championship | 400m freestyle | Men | 3 | 2 | Takumi Komatsu |
| 2012 | Asian Championship | 400m individual medley | Men | 2 | 4 | Keita Sunama |
| 2012 | Asian Championship | 4x100m freestyle | Men | 2 | 12 | – |
| 2012 | Olympic Games | 400m individual medley | Men | 3 | 6 | Kosuke Hagino |
| 2012 | Asian Championship | 4x100m medley | Men | 2 | 12 | – |
| 2012 | Asian Championship | 4x200m freestyle | Men | 2 | 12 | – |
| 2012 | Olympic Games | 4x100m medley | Men | 2 | 54 | – |
| 2012 | Asian Championship | 50m backstroke | Men | 2 | 4 | Takeshi Kawamoto |
| 2012 | Asian Championship | 50m breaststroke | Men | 2 | 4 | Yoshiki Yamanaka |
| 2012 | Asian Championship | 50m butterfly | Men | 3 | 2 | Toru Maruyama |
| 2012 | Asian Championship | 50m freestyle | Men | 3 | 2 | Toru Maruyama |
| 2012 | Olympic Games | 100m backstroke | Women | 3 | 6 | Aya Terakawa |
| 2012 | Asian Championship | 100m backstroke | Women | 3 | 2 | Marie Kamimura |
| 2012 | Olympic Games | 100m breaststroke | Women | 3 | 6 | Satomi Suzuki |
| 2012 | Asian Championship | 100m breaststroke | Women | 3 | 2 | Misaki Sekiguchi |
| 2012 | Asian Championship | 100m butterfly | Women | 3 | 2 | Rino Hosoda |
| 2012 | Asian Championship | 100m freestyle | Women | 3 | 2 | Mao Kawakami |
| 2012 | Olympic Games | 200m breaststroke | Women | 2 | 18 | Satomi Suzuki |
| 2012 | Asian Championship | 200m backstroke | Women | 3 | 2 | Marie Kamimura |
| 2012 | Olympic Games | 200m butterfly | Women | 3 | 6 | Natsumi Hoshi |
| 2012 | Asian Championship | 200m butterfly | Women | 3 | 2 | Misuzu Yabu |
| 2012 | Asian Championship | 200m individual medley | Women | 3 | 2 | Chihiro Igarashi |
| 2012 | Asian Championship | 400m individual medley | Women | 1 | 7 | Hiroko Makino |
| 2012 | Asian Championship | 4x100m freestyle | Women | 2 | 12 | – |
| 2012 | Olympic Games | 4x100m medley | Women | 3 | 18 | – |
| 2012 | Asian Championship | 4x100m medley | Women | 2 | 12 | – |
| 2012 | Asian Championship | 4x200m freestyle | Women | 2 | 12 | – |
| 2012 | Asian Championship | 50m breaststroke | Women | 3 | 2 | Misaki Sekiguchi |
| 2012 | Asian Championship | 800m freestyle | Women | 3 | 2 | Yukimi Moriyama |
| 2012 | World Championship 25m | 200m butterfly | Men | 1 | 4 | Kazuya Kaneda |
| 2012 | World Championship 25m | 200m individual medley | Men | 2 | 2 | Daiya Seto |
| 2012 | World Championship 25m | 400m individual medley | Men | 1 | 4 | Daiya Seto |
| 2012 | World Championship 25m | 200m breaststroke | Women | 3 | 1 | Kanako Watanabe |
| 2012 | Asian Championship | 100m backstroke | Men | 2 | 4 | Takeshi Kawamoto |
| 2012 | Asian Championship | 100m breaststroke | Men | 1 | 7 | Kazuki Kohinata |
| 2012 | Olympic Games | 100m backstroke | Men | 3 | 6 | Ryosuke Irie |
| 2012 | Asian Championship | 100m butterfly | Men | 3 | 2 | Takeshi Kawamoto |
| 2012 | Asian Championship | 100m freestyle | Men | 2 | 4 | Toru Maruyama |
| 2012 | Asian Championship | 1500m freestyle | Men | 2 | 4 | Shogo Takeda |
| 2012 | Asian Championship | 200m backstroke | Men | 3 | 2 | Keita Sunama |
| 2012 | Asian Championship | 200m breaststroke | Men | 1 | 7 | Kazuki Kohinata |
| 2012 | Asian Championship | 200m breaststroke | Men | 2 | 4 | Kazuki Utsunomiya |
| 2012 | Olympic Games | 200m backstroke | Men | 2 | 18 | Ryosuke Irie |
| 2012 | Asian Championship | 200m butterfly | Men | 2 | 4 | Masato Sakai |
| 2012 | Olympic Games | 200m breaststroke | Men | 3 | 6 | Ryo Tateishi |
| 2012 | Asian Championship | 200m freestyle | Men | 3 | 2 | Takumi Komatsu |
| 2012 | Olympic Games | 200m butterfly | Men | 3 | 6 | Takeshi Matsuda |
| 2011 | World Championship | 100m backstroke | Men | 3 | 3 | Ryosuke Irie |
| 2011 | World Championship | 200m backstroke | Men | 2 | 6 | Ryosuke Irie |
| 2011 | World Championship | 200m breaststroke | Men | 2 | 6 | Kosuke Kitajima |
| 2011 | World Championship | 200m butterfly | Men | 2 | 6 | Takeshi Matsuda |
| 2011 | World Championship | 400m individual medley | Men | 3 | 3 | Yuya Horihata |
| 2011 | World Championship | 50m backstroke | Women | 2 | 6 | Aya Terakawa |
| 2010 | Asian Games | 100m butterfly | Men | 2 | 4 | Takuro Fujii |
| 2010 | Asian Games | 100m freestyle | Men | 3 | 2 | Takuro Fujii |
| 2010 | Asian Games | 200m backstroke | Men | 1 | 7 | Ryosuke Irie |
| 2010 | Asian Games | 200m breaststroke | Men | 1 | 7 | Naoya Tomita |
| 2010 | Asian Games | 200m butterfly | Men | 1 | 7 | Takeshi Matsuda |
| 2010 | Asian Games | 200m butterfly | Men | 2 | 4 | Ryusuke Sakata |
| 2010 | Asian Games | 200m freestyle | Men | 3 | 2 | Takeshi Matsuda |
| 2010 | Asian Games | 200m individual medley | Men | 1 | 7 | Ken Takakuwa |
| 2010 | Asian Games | 200m individual medley | Men | 3 | 2 | Yuya Horihata |
| 2010 | Asian Games | 400m individual medley | Men | 1 | 7 | Yuya Horihata |
| 2010 | Asian Games | 400m individual medley | Men | 3 | 2 | Ken Takakuwa |
| 2010 | Asian Games | 4x100m freestyle | Men | 2 | 12 | – |
| 2010 | Asian Games | 4x100m medley | Men | 1 | 21 | – |
| 2010 | Asian Games | 4x200m freestyle | Men | 2 | 12 | – |
| 2010 | Asian Games | 50m backstroke | Men | 1 | 7 | Junya Koga |
| 2010 | Asian Games | 50m backstroke | Men | 2 | 4 | Ryosuke Irie |
| 2010 | Asian Games | 50m breaststroke | Men | 2 | 4 | Ryo Tateishi |
| 2010 | Asian Games | 50m butterfly | Men | 2 | 4 | Masayuki Kishida |
| 2010 | Asian Games | 50m freestyle | Men | 2 | 4 | Masayuki Kishida |
| 2010 | Asian Games | 50m freestyle | Men | 3 | 2 | Rammaru Harada |
| 2010 | Asian Games | 100m backstroke | Women | 2 | 4 | Shiho Sakai |
| 2010 | Asian Games | 100m breaststroke | Women | 2 | 4 | Satomi Suzuki |
| 2010 | Asian Games | 100m butterfly | Women | 3 | 2 | Yuka Kato |
| 2010 | Asian Games | 100m freestyle | Women | 3 | 2 | Haruka Ueda |
| 2010 | Asian Games | 200m backstroke | Women | 2 | 4 | Shiho Sakai |
| 2010 | Asian Games | 200m backstroke | Women | 3 | 2 | Aya Terakawa |
| 2010 | Asian Games | 200m butterfly | Women | 2 | 4 | Natsumi Hoshi |
| 2010 | Asian Games | 200m freestyle | Women | 3 | 2 | Hanae Ito |
| 2010 | Asian Games | 4x100m freestyle | Women | 2 | 12 | – |
| 2010 | Asian Games | 4x100m medley | Women | 2 | 12 | – |
| 2010 | Asian Games | 4x200m freestyle | Women | 2 | 12 | – |
| 2010 | Asian Games | 50m backstroke | Women | 2 | 4 | Aya Terakawa |
| 2010 | Asian Games | 50m breaststroke | Women | 3 | 2 | Satomi Suzuki |
| 2010 | Pan Pacific Championship | 100m backstroke | Men | 2 | 4 | Junya Koga |
| 2010 | Asian Games | 50m butterfly | Women | 2 | 4 | Yuka Kato |
| 2010 | Pan Pacific Championship | 100m breaststroke | Men | 1 | 7 | Kosuke Kitajima |
| 2010 | Asian Games | 50m freestyle | Women | 3 | 2 | Yayoi Matsumoto |
| 2010 | Pan Pacific Championship | 100m butterfly | Men | 3 | 2 | Takuro Fujii |
| 2010 | Asian Games | 800m freestyle | Women | 3 | 2 | Maiko Fujino |
| 2010 | Pan Pacific Championship | 200m backstroke | Men | 3 | 2 | Ryosuke Irie |
| 2010 | Pan Pacific Championship | 200m breaststroke | Men | 1 | 7 | Kosuke Kitajima |
| 2010 | Pan Pacific Championship | 200m butterfly | Men | 3 | 2 | Takeshi Matsuda |
| 2010 | Pan Pacific Championship | 4x100m medley | Men | 2 | 12 | – |
| 2010 | Pan Pacific Championship | 4x200m freestyle | Men | 2 | 12 | – |
| 2010 | Pan Pacific Championship | 50m backstroke | Men | 1 | 7 | Junya Koga |
| 2010 | Pan Pacific Championship | 800m freestyle | Men | 3 | 2 | Takeshi Matsuda |
| 2010 | Pan Pacific Championship | 100m backstroke | Women | 2 | 4 | Aya Terakawa |
| 2010 | Pan Pacific Championship | 4x100m medley | Women | 3 | 6 | – |
| 2010 | Pan Pacific Championship | 50m backstroke | Women | 2 | 4 | Aya Terakawa |
| 2010 | World Championship 25m | 200m breaststroke | Men | 1 | 4 | Naoya Tomita |
| 2010 | Asian Games | 100m backstroke | Men | 1 | 7 | Ryosuke Irie |
| 2010 | Asian Games | 100m backstroke | Men | 2 | 4 | Junya Koga |
| 2010 | Asian Games | 100m breaststroke | Men | 1 | 7 | Ryo Tateishi |
| 2009 | World Championship | 100m backstroke | Men | 1 | 10 | Junya Koga |
| 2009 | World Championship | 200m backstroke | Men | 2 | 6 | Ryosuke Irie |
| 2009 | World Championship | 200m butterfly | Men | 3 | 3 | Takeshi Matsuda |
| 2009 | Asian Championship | 100m backstroke | Men | 2 | 4 | Nobuhiro Toyada |
| 2009 | Asian Championship | 100m backstroke | Men | 3 | 2 | Takahiro Yamazaki |
| 2009 | Asian Championship | 100m butterfly | Men | 3 | 2 | Hirofumi Ikebata |
| 2009 | Asian Championship | 1500m freestyle | Men | 3 | 2 | Jumpei Higashi |
| 2009 | Asian Championship | 200m backstroke | Men | 1 | 7 | Takahiro Yamazaki |
| 2009 | Asian Championship | 200m backstroke | Men | 3 | 2 | Nobuhiro Toyada |
| 2009 | Asian Championship | 200m breaststroke | Men | 1 | 7 | Akihiro Yamaguchi |
| 2009 | Asian Championship | 200m breaststroke | Men | 2 | 4 | Yukihiro Takahashi |
| 2009 | World Championship | 50m backstroke | Men | 2 | 6 | Junya Koga |
| 2009 | Asian Championship | 200m individual medley | Men | 1 | 7 | Kosuke Hagino |
| 2009 | Asian Championship | 400m freestyle | Men | 3 | 2 | Jumpei Higashi |
| 2009 | Asian Championship | 400m individual medley | Men | 1 | 7 | Daiya Seto |
| 2009 | Asian Championship | 400m individual medley | Men | 3 | 2 | Keita Sameshima |
| 2009 | Asian Championship | 4x100m medley | Men | 2 | 12 | – |
| 2009 | Asian Championship | 4x200m freestyle | Men | 2 | 12 | – |
| 2009 | Asian Championship | 50m backstroke | Men | 1 | 7 | Nobuhiro Toyada |
| 2009 | Asian Championship | 50m backstroke | Men | 2 | 4 | Kosuke Hagino |
| 2009 | Asian Championship | 100m backstroke | Women | 3 | 2 | Mai Harada |
| 2009 | Asian Championship | 100m breaststroke | Women | 2 | 4 | Keiko Fukudome |
| 2009 | Asian Championship | 100m butterfly | Women | 3 | 2 | Rino Hosoda |
| 2009 | Asian Championship | 100m freestyle | Women | 3 | 2 | Masako Kuroki |
| 2009 | Asian Championship | 200m backstroke | Women | 2 | 4 | Sayaka Akase |
| 2009 | Asian Championship | 200m backstroke | Women | 3 | 2 | Marie Kamimura |
| 2009 | Asian Championship | 200m breaststroke | Women | 2 | 4 | Keiko Fukudome |
| 2009 | Asian Championship | 200m butterfly | Women | 3 | 2 | Natsuki Akiyama |
| 2009 | Asian Championship | 200m freestyle | Women | 3 | 2 | Risa Sekine |
| 2009 | Asian Championship | 200m individual medley | Women | 3 | 2 | Emi Takabatake |
| 2009 | Asian Championship | 400m individual medley | Women | 3 | 2 | Emi Takabatake |
| 2009 | Asian Championship | 4x100m freestyle | Women | 3 | 6 | – |
| 2009 | Asian Championship | 4x100m medley | Women | 2 | 12 | – |
| 2009 | Asian Championship | 4x200m freestyle | Women | 2 | 12 | – |
| 2009 | Asian Championship | 50m breaststroke | Women | 2 | 4 | Kana Sugisaki |
| 2009 | Asian Championship | 50m butterfly | Women | 3 | 2 | Rino Hosoda |
| 2009 | Asian Championship | 50m freestyle | Women | 3 | 2 | Shiori Kaneko |
| 2009 | Asian Championship | 800m freestyle | Women | 3 | 2 | Mako Kuramatsu |
| 2008 | Olympic Games | 100m breaststroke | Men | 1 | 30 | Kosuke Kitajima |
| 2008 | Olympic Games | 200m breaststroke | Men | 1 | 30 | Kosuke Kitajima |
| 2008 | Olympic Games | 200m butterfly | Men | 3 | 6 | Takeshi Matsuda |
| 2008 | Olympic Games | 4x100m medley | Men | 3 | 18 | – |
| 2008 | Olympic Games | 200m backstroke | Women | 3 | 6 | Reiko Nakamura |
| 2007 | World Championship | 100m breaststroke | Men | 2 | 6 | Kosuke Kitajima |
| 2007 | World Championship | 200m breaststroke | Men | 1 | 10 | Kosuke Kitajima |
| 2007 | World Championship | 4x100m medley | Men | 2 | 18 | – |
| 2007 | World Championship | 100m backstroke | Women | 3 | 3 | Reiko Nakamura |
| 2007 | World Championship | 1500m freestyle | Women | 3 | 3 | Ai Shibata |
| 2007 | World Championship | 200m backstroke | Women | 3 | 3 | Reiko Nakamura |
| 2007 | World Championship | 400m freestyle | Women | 3 | 3 | Ai Shibata |
| 2006 | Asian Games | 100m backstroke | Men | 3 | 2 | Masafumi Yamaguchi |
| 2006 | Asian Games | 100m breaststroke | Men | 1 | 7 | Kosuke Kitajima |
| 2006 | Asian Games | 100m breaststroke | Men | 2 | 4 | Makoto Yamashita |
| 2006 | Asian Games | 100m butterfly | Men | 1 | 7 | Takashi Yamamoto |
| 2006 | Asian Games | 100m butterfly | Men | 2 | 4 | Ryo Takayasu |
| 2006 | Asian Games | 100m freestyle | Men | 3 | 2 | Daisuke Hosokawa |
| 2006 | Pan Pacific Championship | 100m backstroke | Women | 1 | 7 | Hanae Ito |
| 2006 | Asian Games | 1500m freestyle | Men | 3 | 2 | Takeshi Matsuda |
| 2006 | Asian Games | 200m backstroke | Men | 1 | 7 | Ryosuke Irie |
| 2006 | Pan Pacific Championship | 100m backstroke | Women | 3 | 2 | Reiko Nakamura |
| 2006 | Asian Games | 200m backstroke | Men | 3 | 2 | Takashi Nakano |
| 2006 | Asian Games | 200m breaststroke | Men | 1 | 7 | Kosuke Kitajima |
| 2006 | Asian Games | 200m breaststroke | Men | 2 | 4 | Daisuke Kimura |
| 2006 | Asian Games | 200m butterfly | Men | 2 | 4 | Takeshi Matsuda |
| 2006 | Asian Games | 200m butterfly | Men | 3 | 2 | Ryuichi Shibata |
| 2006 | Asian Games | 200m freestyle | Men | 3 | 2 | Daisuke Hosokawa |
| 2006 | Asian Games | 200m individual medley | Men | 1 | 7 | Hidemasa Sano |
| 2006 | Pan Pacific Championship | 1500m freestyle | Women | 3 | 2 | Ai Shibata |
| 2006 | Asian Games | 200m individual medley | Men | 2 | 4 | Ken Takakuwa |
| 2006 | Pan Pacific Championship | 200m backstroke | Women | 1 | 7 | Reiko Nakamura |
| 2006 | Pan Pacific Championship | 200m backstroke | Women | 3 | 2 | Takami Igarashi |
| 2006 | Asian Games | 400m freestyle | Men | 3 | 2 | Takeshi Matsuda |
| 2006 | Pan Pacific Championship | 200m breaststroke | Women | 2 | 4 | Asami Kitagawa |
| 2006 | Asian Games | 400m individual medley | Men | 1 | 7 | Hidemasa Sano |
| 2006 | Asian Games | 400m individual medley | Men | 2 | 4 | Shinya Taniguchi |
| 2006 | Pan Pacific Championship | 200m butterfly | Women | 2 | 4 | Yuko Nakanishi |
| 2006 | Asian Games | 4x100m freestyle | Men | 1 | 21 | – |
| 2006 | Pan Pacific Championship | 200m butterfly | Women | 3 | 2 | Yurie Yano |
| 2006 | Asian Games | 4x100m medley | Men | 1 | 21 | – |
| 2006 | Asian Games | 4x200m freestyle | Men | 1 | 21 | – |
| 2006 | Pan Pacific Championship | 400m freestyle | Women | 1 | 7 | Ai Shibata |
| 2006 | Asian Games | 50m backstroke | Men | 1 | 7 | Junya Koga |
| 2006 | Pan Pacific Championship | 400m freestyle | Women | 3 | 2 | Sachiko Yamada |
| 2006 | Asian Games | 50m breaststroke | Men | 2 | 4 | Kosuke Kitajima |
| 2006 | Asian Games | 50m butterfly | Men | 2 | 4 | Ryo Takayasu |
| 2006 | Pan Pacific Championship | 4x100m medley | Women | 2 | 12 | – |
| 2006 | Asian Games | 50m freestyle | Men | 2 | 4 | Makoto Ito |
| 2006 | Asian Games | 100m backstroke | Women | 1 | 7 | Reiko Nakamura |
| 2006 | Pan Pacific Championship | 4x200m freestyle | Women | 3 | 6 | – |
| 2006 | Asian Games | 100m breaststroke | Women | 1 | 7 | Asami Kitagawa |
| 2006 | Pan Pacific Championship | 800m freestyle | Women | 2 | 4 | Ai Shibata |
| 2006 | Asian Games | 100m freestyle | Women | 3 | 2 | Kaori Yamada |
| 2006 | Asian Games | 200m backstroke | Women | 1 | 7 | Reiko Nakamura |
| 2006 | Asian Games | 200m backstroke | Women | 3 | 2 | Takami Igarashi |
| 2006 | Asian Games | 200m butterfly | Women | 1 | 7 | Yurie Yano |
| 2006 | Asian Games | 200m butterfly | Women | 3 | 2 | Yuko Nakanishi |
| 2006 | Asian Games | 200m freestyle | Women | 3 | 2 | Maki Mita |
| 2006 | Asian Games | 200m individual medley | Women | 2 | 4 | Asami Kitagawa |
| 2006 | Asian Games | 200m individual medley | Women | 3 | 2 | Maiko Fujino |
| 2006 | Asian Games | 400m individual medley | Women | 3 | 2 | Maiko Fujino |
| 2006 | Asian Games | 4x100m freestyle | Women | 2 | 12 | – |
| 2006 | Asian Games | 4x100m medley | Women | 2 | 12 | – |
| 2006 | Asian Games | 4x200m freestyle | Women | 2 | 12 | – |
| 2006 | Asian Games | 50m backstroke | Women | 3 | 2 | Reiko Nakamura |
| 2006 | Asian Games | 50m breaststroke | Women | 2 | 4 | Asami Kitagawa |
| 2006 | Asian Games | 50m butterfly | Women | 3 | 2 | Yuka Kato |
| 2006 | Asian Games | 50m freestyle | Women | 3 | 2 | Kaori Yamada |
| 2006 | Asian Games | 800m freestyle | Women | 1 | 7 | Yurie Yano |
| 2006 | Asian Games | 800m freestyle | Women | 3 | 2 | Maiko Fujino |
| 2006 | Asian Championship | 100m breaststroke | Men | 2 | 4 | Yuta Suenaga |
| 2006 | Asian Championship | 100m breaststroke | Men | 3 | 2 | Koichiro Okazaki |
| 2006 | Asian Championship | 100m butterfly | Men | 3 | 2 | Shota Takamoto |
| 2006 | Asian Championship | 200m breaststroke | Men | 3 | 2 | Yuichi Narisawa |
| 2006 | Asian Championship | 200m butterfly | Men | 3 | 2 | Shota Takamoto |
| 2006 | Asian Championship | 200m individual medley | Men | 3 | 2 | Taishi Okude |
| 2006 | Asian Championship | 400m freestyle | Men | 3 | 2 | Taishi Okude |
| 2006 | Asian Championship | 400m individual medley | Men | 3 | 2 | Taishi Okude |
| 2006 | Asian Championship | 50m breaststroke | Men | 3 | 2 | Koichiro Okazaki |
| 2006 | Asian Championship | 100m backstroke | Women | 1 | 7 | Toshie Abe |
| 2006 | Asian Championship | 100m backstroke | Women | 3 | 2 | Masaki Oikawa |
| 2006 | Asian Championship | 200m backstroke | Women | 2 | 4 | Toshie Abe |
| 2006 | Asian Championship | 200m individual medley | Women | 3 | 2 | Toshie Abe |
| 2006 | Pan Pacific Championship | 100m backstroke | Men | 3 | 2 | Tomomi Morita |
| 2006 | Asian Championship | 50m backstroke | Women | 2 | 4 | Masaki Oikawa |
| 2006 | Pan Pacific Championship | 100m breaststroke | Men | 3 | 2 | Kosuke Kitajima |
| 2006 | Pan Pacific Championship | 100m butterfly | Men | 2 | 4 | Ryo Takayasu |
| 2006 | Pan Pacific Championship | 100m butterfly | Men | 3 | 2 | Takashi Yamamoto |
| 2006 | Pan Pacific Championship | 1500m freestyle | Men | 3 | 2 | Takeshi Matsuda |
| 2006 | Pan Pacific Championship | 200m backstroke | Men | 3 | 2 | Tomomi Morita |
| 2006 | Pan Pacific Championship | 200m breaststroke | Men | 2 | 4 | Kosuke Kitajima |
| 2006 | Pan Pacific Championship | 200m butterfly | Men | 2 | 4 | Ryuichi Shibata |
| 2006 | Pan Pacific Championship | 200m butterfly | Men | 3 | 2 | Takeshi Matsuda |
| 2006 | Pan Pacific Championship | 200m individual medley | Men | 3 | 2 | Ken Takakuwa |
| 2006 | Pan Pacific Championship | 4x100m medley | Men | 2 | 12 | – |
| 2006 | Asian Games | 100m backstroke | Men | 1 | 7 | Junichi Miyashita |
| 2005 | World Championship | 100m breaststroke | Men | 2 | 6 | Kosuke Kitajima |
| 2005 | World Championship | 200m breaststroke | Men | 3 | 3 | Genki Imamura |
| 2005 | World Championship | 200m butterfly | Men | 2 | 6 | Takeshi Matsuda |
| 2005 | World Championship | 4x100m medley | Men | 3 | 9 | – |
| 2005 | World Championship | 50m breaststroke | Men | 3 | 3 | Kosuke Kitajima |
| 2005 | World Championship | 200m backstroke | Women | 3 | 3 | Reiko Nakamura |
| 2005 | World Championship | 200m butterfly | Women | 3 | 3 | Yuko Nakanishi |
| 2005 | World Championship | 400m freestyle | Women | 2 | 6 | Ai Shibata |
| 2005 | World Championship | 800m freestyle | Women | 3 | 3 | Ai Shibata |
| 2004 | Olympic Games | 100m backstroke | Men | 3 | 6 | Tomomi Morita |
| 2004 | Olympic Games | 100m breaststroke | Men | 1 | 30 | Kosuke Kitajima |
| 2004 | Olympic Games | 200m breaststroke | Men | 1 | 30 | Kosuke Kitajima |
| 2004 | Olympic Games | 200m butterfly | Men | 2 | 18 | Takashi Yamamoto |
| 2004 | Olympic Games | 4x100m medley | Men | 3 | 18 | – |
| 2004 | Olympic Games | 200m backstroke | Women | 3 | 6 | Reiko Nakamura |
| 2004 | Olympic Games | 200m butterfly | Women | 3 | 6 | Yuko Nakanishi |
| 2004 | Olympic Games | 800m freestyle | Women | 1 | 30 | Ai Shibata |
| 2004 | World Championship 25m | 400m freestyle | Women | 3 | 1 | Sachiko Yamada |
| 2004 | World Championship 25m | 800m freestyle | Women | 1 | 4 | Sachiko Yamada |
| 2003 | World Championship | 100m breaststroke | Men | 1 | 10 | Kosuke Kitajima |
| 2003 | World Championship | 200m breaststroke | Men | 1 | 10 | Kosuke Kitajima |
| 2003 | World Championship | 200m butterfly | Men | 2 | 6 | Takashi Yamamoto |
| 2003 | World Championship | 4x100m medley | Men | 3 | 9 | – |
| 2003 | World Championship | 200m butterfly | Women | 3 | 3 | Yuko Nakanishi |
| 2003 | World Championship | 50m backstroke | Women | 3 | 3 | Noriko Inada |
| 2002 | World Championship 25m | 200m backstroke | Women | 2 | 2 | Reiko Nakamura |
| 2002 | Asian Games | 100m backstroke | Men | 1 | 7 | Atsushi Nishikori |
| 2002 | Asian Games | 100m backstroke | Men | 3 | 2 | Tomomi Morita |
| 2002 | Asian Games | 100m breaststroke | Men | 1 | 7 | Kosuke Kitajima |
| 2002 | Asian Games | 100m breaststroke | Men | 3 | 2 | Yoshihisa Yamaguchi |
| 2002 | Asian Games | 100m butterfly | Men | 1 | 7 | Takashi Yamamoto |
| 2002 | Asian Games | 100m butterfly | Men | 2 | 4 | Kohei Kawamoto |
| 2002 | Asian Games | 100m freestyle | Men | 3 | 2 | Daisuke Hosokawa |
| 2002 | Asian Games | 200m backstroke | Men | 2 | 4 | Takashi Nakano |
| 2002 | Asian Games | 200m backstroke | Men | 3 | 2 | Naoya Sonoda |
| 2002 | Asian Games | 200m breaststroke | Men | 1 | 7 | Kosuke Kitajima |
| 2002 | Asian Games | 200m breaststroke | Men | 2 | 4 | Daisuke Kimura |
| 2002 | Asian Games | 200m butterfly | Men | 2 | 4 | Takashi Yamamoto |
| 2002 | Asian Games | 200m butterfly | Men | 3 | 2 | Takeshi Matsuda |
| 2002 | Asian Games | 200m freestyle | Men | 2 | 4 | Yoshihiro Okumura |
| 2002 | Asian Games | 200m freestyle | Men | 3 | 2 | Yosuke Ichikawa |
| 2002 | Asian Games | 200m individual medley | Men | 1 | 7 | Takahiro Mori |
| 2002 | Asian Games | 200m individual medley | Men | 2 | 4 | Jiro Miki |
| 2002 | Asian Games | 400m freestyle | Men | 1 | 7 | Shunichi Fujita |
| 2002 | Asian Games | 400m individual medley | Men | 2 | 4 | Takahiro Mori |
| 2002 | Asian Games | 400m individual medley | Men | 3 | 2 | Shinya Taniguchi |
| 2002 | Asian Games | 4x100m freestyle | Men | 2 | 12 | – |
| 2002 | Asian Games | 4x100m medley | Men | 1 | 21 | – |
| 2002 | Asian Games | 4x200m freestyle | Men | 1 | 21 | – |
| 2002 | Asian Games | 50m freestyle | Men | 3 | 2 | Issei Nakanishi |
| 2002 | Asian Games | 100m backstroke | Women | 2 | 4 | Noriko Inada |
| 2002 | Asian Games | 100m backstroke | Women | 3 | 2 | Aya Terakawa |
| 2002 | Asian Games | 100m breaststroke | Women | 3 | 2 | Fumiko Kawanabe |
| 2002 | Asian Games | 100m butterfly | Women | 2 | 4 | Yuko Nakanishi |
| 2002 | Asian Games | 100m freestyle | Women | 2 | 4 | Tomoko Nagai |
| 2002 | Pan Pacific Championship | 100m backstroke | Men | 3 | 2 | Tomomi Morita |
| 2002 | Asian Games | 200m backstroke | Women | 1 | 7 | Reiko Nakamura |
| 2002 | Pan Pacific Championship | 100m breaststroke | Men | 1 | 7 | Kosuke Kitajima |
| 2002 | Asian Games | 200m backstroke | Women | 2 | 4 | Aya Terakawa |
| 2002 | Asian Games | 200m breaststroke | Women | 3 | 2 | Fumiko Kawanabe |
| 2002 | Asian Games | 200m butterfly | Women | 1 | 7 | Yuko Nakanishi |
| 2002 | Asian Games | 200m butterfly | Women | 2 | 4 | Maki Mita |
| 2002 | Asian Games | 200m freestyle | Women | 3 | 2 | Tomoko Nagai |
| 2002 | Asian Games | 200m individual medley | Women | 3 | 2 | Maiko Fujino |
| 2002 | Asian Games | 400m freestyle | Women | 1 | 7 | Sachiko Yamada |
| 2002 | Pan Pacific Championship | 200m breaststroke | Men | 3 | 2 | Daisuke Kimura |
| 2002 | Asian Games | 400m individual medley | Women | 2 | 4 | Maiko Fujino |
| 2002 | Pan Pacific Championship | 200m butterfly | Men | 3 | 2 | Takashi Yamamoto |
| 2002 | Asian Games | 4x100m freestyle | Women | 2 | 12 | – |
| 2002 | Asian Games | 4x100m medley | Women | 2 | 12 | – |
| 2002 | Pan Pacific Championship | 200m individual medley | Men | 2 | 4 | Takahiro Mori |
| 2002 | Asian Games | 4x200m freestyle | Women | 2 | 12 | – |
| 2002 | Pan Pacific Championship | 400m individual medley | Men | 3 | 2 | Takahiro Mori |
| 2002 | Asian Games | 800m freestyle | Women | 2 | 4 | Sachiko Yamada |
| 2002 | Pan Pacific Championship | 1500m freestyle | Women | 2 | 4 | Sachiko Yamada |
| 2002 | Pan Pacific Championship | 200m backstroke | Women | 2 | 4 | Aya Terakawa |
| 2002 | Pan Pacific Championship | 200m individual medley | Women | 1 | 7 | Tomoko Hagiwara |
| 2002 | Pan Pacific Championship | 400m freestyle | Women | 3 | 2 | Sachiko Yamada |
| 2002 | Pan Pacific Championship | 400m individual medley | Women | 3 | 2 | Maiko Fujino |
| 2002 | Pan Pacific Championship | 4x100m freestyle | Women | 3 | 6 | – |
| 2002 | Pan Pacific Championship | 4x200m freestyle | Women | 3 | 6 | – |
| 2002 | Pan Pacific Championship | 800m freestyle | Women | 2 | 4 | Sachiko Yamada |
| 2002 | World Championship 25m | 100m breaststroke | Men | 2 | 2 | Kosuke Kitajima |
| 2001 | World Championship | 4x200m freestyle | Women | 3 | 9 | – |
| 2001 | World Championship | 200m breaststroke | Men | 3 | 3 | Kosuke Kitajima |
| 2001 | World Championship | 50m freestyle | Men | 3 | 3 | Tomohiro Yamanoi |
| 2001 | World Championship | 100m butterfly | Women | 3 | 3 | Junko Onishi |
| 2000 | Olympic Games | 100m backstroke | Women | 2 | 18 | Mai Nakamura |
| 2000 | Olympic Games | 200m backstroke | Women | 3 | 6 | Miki Nakao |
| 2000 | Olympic Games | 400m individual medley | Women | 2 | 18 | Yasuko Tajima |
| 2000 | Olympic Games | 4x100m medley | Women | 3 | 18 | – |
| 1999 | Pan Pacific Championship | 100m butterfly | Men | 3 | 2 | Takashi Yamamoto |
| 1999 | Pan Pacific Championship | 200m butterfly | Men | 2 | 4 | Takashi Yamamoto |
| 1999 | Pan Pacific Championship | 4x100m medley | Men | 3 | 6 | – |
| 1999 | Pan Pacific Championship | 100m backstroke | Women | 1 | 7 | Mai Nakamura |
| 1999 | Pan Pacific Championship | 100m butterfly | Women | 3 | 2 | Ayari Aoyama |
| 1999 | Pan Pacific Championship | 200m backstroke | Women | 1 | 7 | Tomoko Hagiwara |
| 1999 | Pan Pacific Championship | 200m backstroke | Women | 2 | 4 | Miki Nakao |
| 1999 | Pan Pacific Championship | 400m individual medley | Women | 2 | 4 | Yasuko Tajima |
| 1999 | Pan Pacific Championship | 4x100m medley | Women | 3 | 6 | – |
| 1999 | World Championship 25m | 200m butterfly | Men | 2 | 2 | Takashi Yamamoto |
| 1999 | World Championship 25m | 100m backstroke | Women | 1 | 4 | Mai Nakamura |
| 1999 | World Championship 25m | 100m breaststroke | Women | 1 | 4 | Masami Tanaka |
| 1999 | World Championship 25m | 100m butterfly | Women | 3 | 1 | Ayari Aoyama |
| 1999 | World Championship 25m | 200m backstroke | Women | 1 | 4 | Mai Nakamura |
| 1999 | World Championship 25m | 200m breaststroke | Women | 1 | 4 | Masami Tanaka |
| 1999 | World Championship 25m | 4x100m medley | Women | 1 | 12 | – |
| 1999 | World Championship 25m | 50m backstroke | Women | 2 | 2 | Mai Nakamura |
| 1999 | World Championship 25m | 50m breaststroke | Women | 1 | 4 | Masami Tanaka |
| 1998 | Asian Games | 100m breaststroke | Men | 2 | 4 | Akira Hayashi |
| 1998 | Asian Games | 100m butterfly | Men | 1 | 7 | Takashi Yamamoto |
| 1998 | Asian Games | 100m freestyle | Men | 1 | 7 | Shusuke Ito |
| 1998 | Asian Games | 100m freestyle | Men | 2 | 4 | Shusuke Ito |
| 1998 | Asian Games | 1500m freestyle | Men | 1 | 7 | Masato Hirano |
| 1998 | Asian Games | 200m breaststroke | Men | 3 | 2 | Yoshinobu Miyazaki |
| 1998 | Asian Games | 200m butterfly | Men | 1 | 7 | Takashi Yamamoto |
| 1998 | Asian Games | 200m freestyle | Men | 1 | 7 | Yosuke Ichikawa |
| 1998 | Asian Games | 200m freestyle | Men | 3 | 2 | Shusuke Ito |
| 1998 | Asian Games | 200m individual medley | Men | 2 | 4 | Jo Yoshimi |
| 1998 | Asian Games | 400m freestyle | Men | 2 | 4 | Masato Hirano |
| 1998 | Asian Games | 400m individual medley | Men | 1 | 7 | Takahiro Mori |
| 1998 | Asian Games | 4x100m freestyle | Men | 1 | 21 | – |
| 1998 | Asian Games | 4x100m medley | Men | 1 | 21 | – |
| 1998 | Asian Games | 4x200m freestyle | Men | 1 | 21 | – |
| 1998 | Asian Games | 50m freestyle | Men | 2 | 4 | Tomohiro Yamanoi |
| 1998 | Asian Games | 50m freestyle | Men | 3 | 2 | Hirosuke Hamano |
| 1998 | Asian Games | 100m backstroke | Women | 1 | 7 | Tomoko Hagiwara |
| 1998 | Asian Games | 100m backstroke | Women | 2 | 4 | Mai Nakamura |
| 1998 | Asian Games | 100m breaststroke | Women | 3 | 2 | Masami Tanaka |
| 1998 | Asian Games | 100m butterfly | Women | 1 | 7 | Ayari Aoyama |
| 1998 | Asian Games | 100m butterfly | Women | 3 | 2 | Hitomi Kashima |
| 1998 | Asian Games | 100m freestyle | Women | 2 | 4 | Sumika Minamoto |
| 1998 | Asian Games | 200m backstroke | Women | 1 | 7 | Tomoko Hagiwara |
| 1998 | Asian Games | 200m backstroke | Women | 2 | 4 | Mai Nakamura |
| 1998 | Asian Games | 200m breaststroke | Women | 1 | 7 | Masami Tanaka |
| 1998 | Asian Games | 200m breaststroke | Women | 3 | 2 | Junko Isoda |
| 1998 | Asian Games | 200m butterfly | Women | 3 | 2 | Hitomi Kashima |
| 1998 | Asian Games | 200m freestyle | Women | 3 | 2 | Sachiko Yamada |
| 1998 | Asian Games | 400m freestyle | Women | 2 | 4 | Sachiko Yamada |
| 1998 | Asian Games | 400m individual medley | Women | 1 | 7 | Yasuko Tajima |
| 1998 | Asian Games | 4x100m freestyle | Women | 2 | 12 | – |
| 1998 | Asian Games | 4x100m medley | Women | 1 | 21 | – |
| 1998 | Asian Games | 4x200m freestyle | Women | 2 | 12 | – |
| 1998 | Asian Games | 50m freestyle | Women | 3 | 2 | Sumika Minamoto |
| 1998 | Asian Games | 800m freestyle | Women | 2 | 4 | Sachiko Yamada |
| 1998 | Asian Games | 800m freestyle | Women | 3 | 2 | Eri Yamanoi |
| 1998 | World Championship | 100m backstroke | Women | 2 | 6 | Mai Nakamura |
| 1998 | World Championship | 100m butterfly | Women | 2 | 6 | Ayari Aoyama |
| 1998 | World Championship | 200m backstroke | Women | 3 | 3 | Mai Nakamura |
| 1998 | World Championship | 400m individual medley | Women | 3 | 3 | Yasuko Tajima |
| 1998 | World Championship | 4x100m medley | Women | 3 | 9 | – |
| 1997 | World Championship 25m | 200m butterfly | Women | 2 | 2 | Hitomi Kashima |
| 1997 | Pan Pacific Championship | 200m breaststroke | Men | 2 | 4 | Yoshiaki Okita |
| 1997 | Pan Pacific Championship | 100m backstroke | Women | 1 | 7 | Mai Nakamura |
| 1997 | Pan Pacific Championship | 100m butterfly | Women | 2 | 4 | Ayari Aoyama |
| 1997 | Pan Pacific Championship | 200m backstroke | Women | 1 | 7 | Mai Nakamura |
| 1997 | Pan Pacific Championship | 200m backstroke | Women | 3 | 2 | Miki Nakao |
| 1997 | Pan Pacific Championship | 200m breaststroke | Women | 2 | 4 | Masami Tanaka |
| 1997 | Pan Pacific Championship | 4x100m medley | Women | 3 | 6 | – |
| 1995 | Pan Pacific Championship | 200m backstroke | Men | 3 | 2 | Ryuji Horii |
| 1995 | Pan Pacific Championship | 200m breaststroke | Men | 1 | 7 | Akira Hayashi |
| 1995 | Pan Pacific Championship | 4x100m medley | Men | 3 | 6 | – |
| 1995 | Pan Pacific Championship | 100m backstroke | Women | 1 | 7 | Noriko Inada |
| 1995 | Pan Pacific Championship | 100m backstroke | Women | 3 | 2 | Mai Nakamura |
| 1995 | Pan Pacific Championship | 100m freestyle | Women | 3 | 2 | Suzu Chiba |
| 1995 | Pan Pacific Championship | 200m backstroke | Women | 2 | 4 | Noriko Inada |
| 1995 | Pan Pacific Championship | 200m butterfly | Women | 2 | 4 | Mika Haruna |
| 1995 | Pan Pacific Championship | 200m freestyle | Women | 1 | 7 | Suzu Chiba |
| 1995 | Pan Pacific Championship | 400m individual medley | Women | 1 | 7 | Fumie Kurotori |
| 1995 | Pan Pacific Championship | 4x100m freestyle | Women | 3 | 6 | – |
| 1995 | Pan Pacific Championship | 4x100m medley | Women | 3 | 6 | – |
| 1995 | Pan Pacific Championship | 50m freestyle | Women | 3 | 2 | Sumika Minamoto |
| 1994 | Asian Games | 100m backstroke | Men | 1 | 7 | Hajime Itoi |
| 1994 | Asian Games | 100m backstroke | Men | 2 | 4 | Eiji Komine |
| 1994 | Asian Games | 100m breaststroke | Men | 1 | 7 | Akira Hayashi |
| 1994 | Asian Games | 100m butterfly | Men | 2 | 4 | Hajime Itoi |
| 1994 | Asian Games | 100m butterfly | Men | 3 | 2 | Mitsuharu Takane |
| 1994 | Asian Games | 100m freestyle | Men | 1 | 7 | Yukihiro Matsushita |
| 1994 | Asian Games | 1500m freestyle | Men | 2 | 4 | Masato Hirano |
| 1994 | Asian Games | 200m backstroke | Men | 2 | 4 | Hajime Itoi |
| 1994 | Asian Games | 200m backstroke | Men | 3 | 2 | Ryuji Horii |
| 1994 | Asian Games | 200m breaststroke | Men | 2 | 4 | Akira Hayashi |
| 1994 | Asian Games | 200m butterfly | Men | 2 | 4 | Mitsuharu Takane |
| 1994 | Asian Games | 200m butterfly | Men | 3 | 2 | Osamu Mihara |
| 1994 | Asian Games | 200m freestyle | Men | 1 | 7 | Taihei Maeda |
| 1994 | Asian Games | 200m freestyle | Men | 2 | 4 | Kazunori Hikida |
| 1994 | Asian Games | 200m individual medley | Men | 2 | 4 | Takahiro Fujimoto |
| 1994 | Asian Games | 200m individual medley | Men | 3 | 2 | Tatsuya Kinugasa |
| 1994 | Asian Games | 400m freestyle | Men | 3 | 2 | Masayuki Fujimoto |
| 1994 | Asian Games | 400m individual medley | Men | 2 | 4 | Tatsuya Kinugasa |
| 1994 | Asian Games | 400m individual medley | Men | 3 | 2 | Takahiro Fujimoto |
| 1994 | Asian Games | 4x100m freestyle | Men | 1 | 21 | – |
| 1994 | Asian Games | 4x100m medley | Men | 1 | 21 | – |
| 1994 | Asian Games | 4x200m freestyle | Men | 1 | 21 | – |
| 1994 | Asian Games | 100m backstroke | Women | 2 | 4 | Miki Nakao |
| 1994 | Asian Games | 100m backstroke | Women | 3 | 2 | Mai Nakamura |
| 1994 | Asian Games | 100m breaststroke | Women | 2 | 4 | Masami Tanaka |
| 1994 | Asian Games | 100m breaststroke | Women | 3 | 2 | Hitomi Maehara |
| 1994 | Asian Games | 100m freestyle | Women | 2 | 4 | Naoko Imoto |
| 1994 | Asian Games | 100m freestyle | Women | 3 | 2 | Sumika Minamoto |
| 1994 | Asian Games | 200m backstroke | Women | 3 | 2 | Miki Nakao |
| 1994 | Asian Games | 200m breaststroke | Women | 3 | 2 | Masami Tanaka |
| 1994 | Asian Games | 200m butterfly | Women | 3 | 2 | Mika Haruna |
| 1994 | Asian Games | 200m freestyle | Women | 2 | 4 | Eri Yamanoi |
| 1994 | Asian Games | 200m freestyle | Women | 3 | 2 | Suzu Chiba |
| 1994 | Asian Games | 200m individual medley | Women | 2 | 4 | Hitomi Maehara |
| 1994 | Asian Games | 200m individual medley | Women | 3 | 2 | Hideko Hiranaka |
| 1994 | Asian Games | 400m freestyle | Women | 1 | 7 | Suzu Chiba |
| 1994 | Asian Games | 400m freestyle | Women | 2 | 4 | Sachiko Miyaji |
| 1994 | Asian Games | 400m individual medley | Women | 3 | 2 | Hitomi Maehara |
| 1994 | Asian Games | 4x100m freestyle | Women | 1 | 21 | – |
| 1994 | Asian Games | 4x100m medley | Women | 2 | 12 | – |
| 1994 | Asian Games | 50m freestyle | Women | 1 | 7 | Naoko Imoto |
| 1994 | Asian Games | 50m freestyle | Women | 2 | 4 | Sumika Minamoto |
| 1994 | Asian Games | 800m freestyle | Women | 2 | 4 | Tomoko Goza |
| 1994 | Asian Games | 800m freestyle | Women | 3 | 2 | Sachiko Miyaji |
| 1993 | World Championship 25m | 200m breaststroke | Women | 2 | 2 | Hitomi Maehara |
| 1993 | Pan Pacific Championship | 100m backstroke | Men | 3 | 2 | Hajime Itoi |
| 1993 | Pan Pacific Championship | 100m breaststroke | Men | 2 | 4 | Akira Hayashi |
| 1993 | Pan Pacific Championship | 200m backstroke | Men | 3 | 2 | Hajime Itoi |
| 1993 | Pan Pacific Championship | 200m butterfly | Men | 3 | 2 | Mitsuharu Takane |
| 1993 | Pan Pacific Championship | 4x100m medley | Men | 3 | 6 | – |
| 1993 | Pan Pacific Championship | 100m backstroke | Women | 3 | 2 | Yoko Koikawa |
| 1993 | Pan Pacific Championship | 200m butterfly | Women | 1 | 7 | Rie Shito |
| 1993 | Pan Pacific Championship | 200m butterfly | Women | 2 | 4 | Mika Haruna |
| 1993 | Pan Pacific Championship | 200m freestyle | Women | 3 | 2 | Suzu Chiba |
| 1993 | Pan Pacific Championship | 200m individual medley | Women | 2 | 4 | Hitomi Maehara |
| 1993 | Pan Pacific Championship | 400m freestyle | Women | 3 | 2 | Suzu Chiba |
| 1993 | Pan Pacific Championship | 4x100m medley | Women | 3 | 6 | – |
| 1993 | Pan Pacific Championship | 4x200m freestyle | Women | 3 | 6 | – |
| 1992 | Olympic Games | 200m breaststroke | Women | 1 | 30 | Kyoko Iwasaki |
| 1991 | Pan Pacific Championship | 100m breaststroke | Men | 3 | 2 | Akira Hayashi |
| 1991 | Pan Pacific Championship | 200m backstroke | Men | 3 | 2 | Hajime Itoi |
| 1991 | Pan Pacific Championship | 200m breaststroke | Men | 2 | 4 | Hiroshi Fujieda |
| 1991 | Pan Pacific Championship | 200m butterfly | Men | 3 | 2 | Keiichi Kawanaka |
| 1991 | Pan Pacific Championship | 100m butterfly | Women | 3 | 2 | Yoko Kando |
| 1991 | Pan Pacific Championship | 200m breaststroke | Women | 3 | 2 | Kyoko Kasuya |
| 1991 | Pan Pacific Championship | 200m butterfly | Women | 3 | 2 | Yoko Kando |
| 1991 | Pan Pacific Championship | 200m freestyle | Women | 3 | 2 | Suzu Chiba |
| 1991 | Pan Pacific Championship | 400m freestyle | Women | 3 | 2 | Suzu Chiba |
| 1991 | Pan Pacific Championship | 4x100m freestyle | Women | 2 | 12 | – |
| 1991 | Pan Pacific Championship | 4x100m medley | Women | 3 | 6 | – |
| 1991 | Pan Pacific Championship | 4x200m freestyle | Women | 2 | 12 | – |
| 1991 | World Championship | 200m butterfly | Women | 2 | 6 | Rie Shito |
| 1991 | World Championship | 400m freestyle | Women | 3 | 3 | Suzu Chiba |
| 1990 | Asian Games | 100m backstroke | Men | 2 | 4 | Hajime Itoi |
| 1990 | Asian Games | 100m backstroke | Men | 3 | 2 | Keita Soraoka |
| 1990 | Asian Games | 100m breaststroke | Men | 2 | 4 | Kenji Watanabe |
| 1990 | Asian Games | 100m breaststroke | Men | 3 | 2 | Nobuyuki Kawaguchi |
| 1990 | Asian Games | 100m butterfly | Men | 2 | 4 | Kunio Sugimoto |
| 1990 | Asian Games | 100m butterfly | Men | 3 | 2 | Tomohiro Miyoshi |
| 1990 | Asian Games | 1500m freestyle | Men | 1 | 7 | Masayuki Fujimoto |
| 1990 | Asian Games | 1500m freestyle | Men | 3 | 2 | Masashi Kato |
| 1990 | Asian Games | 200m backstroke | Men | 2 | 4 | Keita Soraoka |
| 1990 | Asian Games | 200m backstroke | Men | 3 | 2 | Hajime Itoi |
| 1990 | Asian Games | 200m breaststroke | Men | 1 | 7 | Kenji Watanabe |
| 1990 | Asian Games | 200m breaststroke | Men | 2 | 4 | Nobuyuki Kawaguchi |
| 1990 | Asian Games | 200m butterfly | Men | 1 | 7 | Kunio Sugimoto |
| 1990 | Asian Games | 200m butterfly | Men | 2 | 4 | Tomohiro Miyoshi |
| 1990 | Asian Games | 200m freestyle | Men | 2 | 4 | Tomohiro Noguchi |
| 1990 | Asian Games | 200m individual medley | Men | 1 | 7 | Takahiro Fujimoto |
| 1990 | Asian Games | 200m individual medley | Men | 2 | 4 | Shuichi Nakamura |
| 1990 | Asian Games | 400m freestyle | Men | 1 | 7 | Tomohiro Noguchi |
| 1990 | Asian Games | 400m freestyle | Men | 2 | 4 | Takafumi Asahara |
| 1990 | Asian Games | 400m individual medley | Men | 1 | 7 | Takahiro Fujimoto |
| 1990 | Asian Games | 400m individual medley | Men | 2 | 4 | Shuichi Nakamura |
| 1990 | Asian Games | 4x100m freestyle | Men | 2 | 12 | – |
| 1990 | Asian Games | 4x100m medley | Men | 2 | 12 | – |
| 1990 | Asian Games | 4x200m freestyle | Men | 1 | 21 | – |
| 1990 | Asian Games | 100m backstroke | Women | 3 | 2 | Satomi Oguri |
| 1990 | Asian Games | 100m breaststroke | Women | 2 | 4 | Kyoko Kasuya |
| 1990 | Asian Games | 100m breaststroke | Women | 3 | 2 | Asako Natsume |
| 1990 | Asian Games | 100m butterfly | Women | 3 | 2 | Yoko Kando |
| 1990 | Asian Games | 100m freestyle | Women | 3 | 2 | Suzu Chiba |
| 1990 | Asian Games | 200m backstroke | Women | 3 | 2 | Satomi Oguri |
| 1990 | Asian Games | 200m breaststroke | Women | 3 | 2 | Kyoko Kasuya |
| 1990 | Asian Games | 200m butterfly | Women | 3 | 2 | Rie Shito |
| 1990 | Asian Games | 200m freestyle | Women | 2 | 4 | Suzu Chiba |
| 1990 | Asian Games | 200m individual medley | Women | 2 | 4 | Fumie Kurotori |
| 1990 | Asian Games | 400m freestyle | Women | 3 | 2 | Suzu Chiba |
| 1990 | Asian Games | 400m individual medley | Women | 3 | 2 | Fumie Kurotori |
| 1990 | Asian Games | 4x100m medley | Women | 2 | 12 | – |
| 1990 | Asian Games | 50m freestyle | Women | 3 | 2 | Naoko Imoto |
| 1990 | Asian Games | 800m freestyle | Women | 3 | 2 | Tomomi Hosoda |
| 1989 | Pan Pacific Championship | 200m butterfly | Women | 1 | 7 | Rie Shito |
| 1989 | Pan Pacific Championship | 4x200m freestyle | Women | 2 | 12 | – |
| 1988 | Olympic Games | 100m backstroke | Men | 1 | 30 | Daichi Suzuki |
| 1987 | Pan Pacific Championship | 200m butterfly | Women | 2 | 4 | Takayo Kitano |
| 1987 | Pan Pacific Championship | 200m butterfly | Women | 3 | 2 | Kiyomi Takahashi |
| 1987 | Pan Pacific Championship | 100m backstroke | Men | 2 | 4 | Daichi Suzuki |
| 1986 | Asian Games | 100m breaststroke | Men | 2 | 4 | Hisashi Fuwa |
| 1986 | Asian Games | 100m breaststroke | Men | 3 | 2 | Kenji Watanabe |
| 1986 | Asian Games | 100m butterfly | Men | 1 | 7 | Hiroshi Miura |
| 1986 | Asian Games | 100m butterfly | Men | 3 | 2 | Hiroshi Sato |
| 1986 | Asian Games | 100m freestyle | Men | 1 | 7 | Katsunori Fujiwara |
| 1986 | Asian Games | 1500m freestyle | Men | 2 | 4 | Shigeo Ogata |
| 1986 | Asian Games | 200m backstroke | Men | 1 | 7 | Kazuya Ikeda |
| 1986 | Asian Games | 200m backstroke | Men | 3 | 2 | Shigemori Maruyama |
| 1986 | Asian Games | 200m breaststroke | Men | 1 | 7 | Kenji Watanabe |
| 1986 | Asian Games | 200m breaststroke | Men | 2 | 4 | Naritoshi Matsuda |
| 1986 | Asian Games | 200m butterfly | Men | 1 | 7 | Hiroshi Sato |
| 1986 | Asian Games | 200m butterfly | Men | 3 | 2 | Yukinori Tanaka |
| 1986 | Asian Games | 200m freestyle | Men | 1 | 7 | Katsunori Fujiwara |
| 1986 | Asian Games | 200m freestyle | Men | 2 | 4 | Shigeo Ogata |
| 1986 | Asian Games | 200m individual medley | Men | 1 | 7 | Naritoshi Matsuda |
| 1986 | Asian Games | 200m individual medley | Men | 3 | 2 | Satoshi Takeda |
| 1986 | Asian Games | 400m freestyle | Men | 2 | 4 | Shigeo Ogata |
| 1986 | Asian Games | 400m individual medley | Men | 1 | 7 | Naritoshi Matsuda |
| 1986 | Asian Games | 400m individual medley | Men | 2 | 4 | Satoshi Takeda |
| 1986 | Asian Games | 4x100m freestyle | Men | 2 | 12 | – |
| 1986 | Asian Games | 4x100m medley | Men | 1 | 21 | – |
| 1986 | Asian Games | 4x200m freestyle | Men | 1 | 21 | – |
| 1986 | Asian Games | 100m backstroke | Women | 2 | 4 | Kaoru Ono |
| 1986 | Asian Games | 100m backstroke | Women | 3 | 2 | Naomi Sekido |
| 1986 | Asian Games | 100m breaststroke | Women | 2 | 4 | Hiroko Nagasaki |
| 1986 | Asian Games | 100m butterfly | Women | 2 | 4 | Yoko Kawahigashi |
| 1986 | Asian Games | 100m butterfly | Women | 3 | 2 | Kiyomi Takahashi |
| 1986 | Asian Games | 100m freestyle | Women | 1 | 7 | Yoko Shimao |
| 1986 | Asian Games | 200m backstroke | Women | 2 | 4 | Naomi Sekido |
| 1986 | Asian Games | 200m backstroke | Women | 3 | 2 | Hiroyo Harada |
| 1986 | Asian Games | 200m breaststroke | Women | 1 | 7 | Hiroko Nagasaki |
| 1986 | Asian Games | 200m breaststroke | Women | 2 | 4 | Asako Natsume |
| 1986 | Asian Games | 200m butterfly | Women | 1 | 7 | Izumi Kawahara |
| 1986 | Asian Games | 200m butterfly | Women | 2 | 4 | Kiyomi Takahashi |
| 1986 | Asian Games | 200m freestyle | Women | 1 | 7 | Chikako Nakamori |
| 1986 | Asian Games | 200m freestyle | Women | 2 | 4 | Mika Saito |
| 1986 | Asian Games | 200m individual medley | Women | 1 | 7 | Naomi Sekido |
| 1986 | Asian Games | 200m individual medley | Women | 2 | 4 | Hiroyo Harada |
| 1986 | Asian Games | 400m freestyle | Women | 3 | 2 | Miki Wakahoi |
| 1986 | Asian Games | 400m individual medley | Women | 2 | 4 | Naomi Sekido |
| 1986 | Asian Games | 4x100m freestyle | Women | 2 | 12 | – |
| 1986 | Asian Games | 4x100m medley | Women | 1 | 21 | – |
| 1986 | Asian Games | 800m freestyle | Women | 3 | 2 | Miki Wakahoi |
| 1986 | Asian Games | 100m backstroke | Men | 1 | 7 | Daichi Suzuki |
| 1986 | Asian Games | 100m backstroke | Men | 2 | 4 | Shigemori Maruyama |
| 1985 | Pan Pacific Championship | 100m breaststroke | Women | 2 | 4 | Hiroko Nagasaki |
| 1985 | Pan Pacific Championship | 200m breaststroke | Women | 1 | 7 | Hiroko Nagasaki |
| 1985 | Pan Pacific Championship | 4x100m medley | Women | 3 | 6 | – |
| 1982 | Asian Games | 100m backstroke | Men | 1 | 7 | Kenji Ikeda |
| 1982 | Asian Games | 100m backstroke | Men | 2 | 4 | Hidetoshi Takahashi |
| 1982 | Asian Games | 100m breaststroke | Men | 2 | 4 | Shigehiro Takahashi |
| 1982 | Asian Games | 100m butterfly | Men | 1 | 7 | Taihei Saka |
| 1982 | Asian Games | 1500m freestyle | Men | 1 | 7 | Kimihiro Anzai |
| 1982 | Asian Games | 1500m freestyle | Men | 2 | 4 | Keisuke Okuno |
| 1982 | Asian Games | 200m backstroke | Men | 1 | 7 | Hidetoshi Takahashi |
| 1982 | Asian Games | 200m breaststroke | Men | 1 | 7 | Naritoshi Matsuda |
| 1982 | Asian Games | 200m breaststroke | Men | 3 | 2 | Shigehiro Takahashi |
| 1982 | Asian Games | 200m butterfly | Men | 1 | 7 | Taihei Saka |
| 1982 | Asian Games | 200m butterfly | Men | 3 | 2 | Masakazu Hirata |
| 1982 | Asian Games | 200m individual medley | Men | 2 | 4 | Keiichi Ohata |
| 1982 | Asian Games | 200m individual medley | Men | 3 | 2 | Shinji Ito |
| 1982 | Asian Games | 400m freestyle | Men | 1 | 7 | Ikuhiro Terashita |
| 1982 | Asian Games | 400m individual medley | Men | 1 | 7 | Keiichi Ohata |
| 1982 | Asian Games | 400m individual medley | Men | 3 | 2 | Shinji Ito |
| 1982 | Asian Games | 4x100m freestyle | Men | 2 | 12 | – |
| 1982 | Asian Games | 4x100m medley | Men | 1 | 21 | – |
| 1982 | Asian Games | 4x200m freestyle | Men | 1 | 21 | – |
| 1982 | Asian Games | 100m backstroke | Women | 3 | 2 | Koto Maeda |
| 1982 | Asian Games | 100m breaststroke | Women | 1 | 7 | Hiroko Nagasaki |
| 1982 | Asian Games | 100m butterfly | Women | 1 | 7 | Takemi Ise |
| 1982 | Asian Games | 100m butterfly | Women | 2 | 4 | Kiyomi Takahashi |
| 1982 | Asian Games | 100m freestyle | Women | 1 | 7 | Kaori Yanase |
| 1982 | Asian Games | 100m freestyle | Women | 2 | 4 | Chikako Nakamori |
| 1982 | Asian Games | 200m backstroke | Women | 3 | 2 | Hisae Asari |
| 1982 | Asian Games | 200m breaststroke | Women | 1 | 7 | Hiroko Nagasaki |
| 1982 | Asian Games | 200m butterfly | Women | 1 | 7 | Kiyomi Takahashi |
| 1982 | Asian Games | 200m butterfly | Women | 2 | 4 | Takemi Ise |
| 1982 | Asian Games | 200m freestyle | Women | 1 | 7 | Kaori Yanase |
| 1982 | Asian Games | 200m freestyle | Women | 2 | 4 | Mika Saito |
| 1982 | Asian Games | 200m individual medley | Women | 2 | 4 | Hideka Koshimizu |
| 1982 | Asian Games | 400m freestyle | Women | 1 | 7 | Mika Saito |
| 1982 | Asian Games | 400m freestyle | Women | 2 | 4 | Junko Sakurai |
| 1982 | Asian Games | 400m individual medley | Women | 1 | 7 | Hideka Koshimizu |
| 1982 | Asian Games | 400m individual medley | Women | 2 | 4 | Naomi Sekido |
| 1982 | Asian Games | 4x100m freestyle | Women | 1 | 21 | – |
| 1982 | Asian Games | 4x100m medley | Women | 1 | 21 | – |
| 1982 | Asian Games | 800m freestyle | Women | 1 | 7 | Naomi Sekido |
| 1982 | Asian Games | 800m freestyle | Women | 2 | 4 | Junko Sakurai |
| 1978 | Asian Games | 100m backstroke | Men | 1 | 7 | Kenji Ikeda |
| 1978 | Asian Games | 100m backstroke | Men | 2 | 4 | Tsuyoshi Takahashi |
| 1978 | Asian Games | 100m breaststroke | Men | 1 | 7 | Shigehiro Takahashi |
| 1978 | Asian Games | 100m breaststroke | Men | 2 | 4 | Hiroshi Kabatani |
| 1978 | Asian Games | 100m butterfly | Men | 1 | 7 | Shinsuke Kayama |
| 1978 | Asian Games | 100m freestyle | Men | 1 | 7 | Tsuyoshi Yanagidate |
| 1978 | Asian Games | 1500m freestyle | Men | 1 | 7 | Shuji Tsukasaki |
| 1978 | Asian Games | 1500m freestyle | Men | 2 | 4 | Takehiko Kawakami |
| 1978 | Asian Games | 200m backstroke | Men | 1 | 7 | Tsuyoshi Takahashi |
| 1978 | Asian Games | 200m backstroke | Men | 3 | 2 | Kenji Ikeda |
| 1978 | Asian Games | 200m breaststroke | Men | 1 | 7 | Shigehiro Takahashi |
| 1978 | Asian Games | 200m breaststroke | Men | 2 | 4 | Hiroshi Kabatani |
| 1978 | Asian Games | 200m butterfly | Men | 1 | 7 | Shinsuke Kayama |
| 1978 | Asian Games | 200m freestyle | Men | 3 | 2 | Hiroshi Sakamoto |
| 1978 | Asian Games | 200m individual medley | Men | 1 | 7 | Tsuyoshi Yanagidate |
| 1978 | Asian Games | 200m individual medley | Men | 2 | 4 | Kozo Tatsumi |
| 1978 | Asian Games | 400m freestyle | Men | 1 | 7 | Shuji Tsukasaki |
| 1978 | Asian Games | 400m freestyle | Men | 2 | 4 | Kazuhiko Yoshihara |
| 1978 | Asian Games | 400m individual medley | Men | 1 | 7 | Kozo Tatsumi |
| 1978 | Asian Games | 400m individual medley | Men | 2 | 4 | Tsuyoshi Yanagidate |
| 1978 | Asian Games | 4x100m freestyle | Men | 1 | 21 | – |
| 1978 | Asian Games | 4x100m medley | Men | 1 | 21 | – |
| 1978 | Asian Games | 4x200m freestyle | Men | 1 | 21 | – |
| 1978 | Asian Games | 100m backstroke | Women | 1 | 7 | Hisae Asari |
| 1978 | Asian Games | 100m backstroke | Women | 2 | 4 | Naoko Miura |
| 1978 | Asian Games | 100m breaststroke | Women | 1 | 7 | Chieko Watanabe |
| 1978 | Asian Games | 100m breaststroke | Women | 3 | 2 | Chiharu Mori |
| 1978 | Asian Games | 100m butterfly | Women | 1 | 7 | Yasue Hatsuda |
| 1978 | Asian Games | 100m butterfly | Women | 2 | 4 | Naoko Kume |
| 1978 | Asian Games | 100m freestyle | Women | 1 | 7 | Sachiko Yamazaki |
| 1978 | Asian Games | 100m freestyle | Women | 2 | 4 | Shiho Sakanishi |
| 1978 | Asian Games | 200m backstroke | Women | 1 | 7 | Hisae Asari |
| 1978 | Asian Games | 200m backstroke | Women | 2 | 4 | Naoko Miura |
| 1978 | Asian Games | 200m breaststroke | Women | 1 | 7 | Chieko Watanabe |
| 1978 | Asian Games | 200m breaststroke | Women | 2 | 4 | Chiharu Mori |
| 1978 | Asian Games | 200m butterfly | Women | 1 | 7 | Yasue Hatsuda |
| 1978 | Asian Games | 200m butterfly | Women | 2 | 4 | Naoko Kume |
| 1978 | Asian Games | 200m freestyle | Women | 3 | 2 | Sachiko Yamazaki |
| 1978 | Asian Games | 200m individual medley | Women | 1 | 7 | Mio Hirata |
| 1978 | Asian Games | 200m individual medley | Women | 2 | 4 | Yuko Imamichi |
| 1978 | Asian Games | 400m freestyle | Women | 2 | 4 | Kana Kamo |
| 1978 | Asian Games | 400m individual medley | Women | 1 | 7 | Mio Hirata |
| 1978 | Asian Games | 400m individual medley | Women | 2 | 4 | Yuko Imamichi |
| 1978 | Asian Games | 4x100m freestyle | Women | 1 | 21 | – |
| 1978 | Asian Games | 4x100m medley | Women | 1 | 21 | – |
| 1978 | Asian Games | 800m freestyle | Women | 2 | 4 | Kana Kamo |
| 1978 | Asian Games | 800m freestyle | Women | 3 | 2 | Magumi Tochihara |
| 1975 | World Championship | 100m breaststroke | Men | 2 | 6 | Nobutaka Taguchi |
| 1974 | Asian Games | 100m breaststroke | Women | 1 | 7 | Toshiko Haruoka |
| 1974 | Asian Games | 100m breaststroke | Women | 2 | 4 | Yoko Yamamoto |
| 1974 | Asian Games | 100m butterfly | Women | 1 | 7 | Yasue Hatsuda |
| 1974 | Asian Games | 100m butterfly | Women | 2 | 4 | Yukari Takemoto |
| 1974 | Asian Games | 100m freestyle | Women | 1 | 7 | Yoshimi Nishigawa |
| 1974 | Asian Games | 100m freestyle | Women | 2 | 4 | Motoko Osawa |
| 1974 | Asian Games | 200m breaststroke | Women | 1 | 7 | Toshiko Haruoka |
| 1974 | Asian Games | 200m breaststroke | Women | 2 | 4 | Yoko Yamamoto |
| 1974 | Asian Games | 200m freestyle | Women | 1 | 7 | Yoshimi Nishigawa |
| 1974 | Asian Games | 200m freestyle | Women | 2 | 4 | Fusae Nakamura |
| 1974 | Asian Games | 200m individual medley | Women | 1 | 7 | Yoshimi Nishigawa |
| 1974 | Asian Games | 200m individual medley | Women | 2 | 4 | Yukari Takemoto |
| 1974 | Asian Games | 400m freestyle | Women | 1 | 7 | Fusae Nakamura |
| 1974 | Asian Games | 400m freestyle | Women | 3 | 2 | Atsuko Sakai |
| 1974 | Asian Games | 4x100m freestyle | Women | 1 | 21 | – |
| 1974 | Asian Games | 4x100m medley | Women | 1 | 21 | – |
| 1974 | Asian Games | 100m backstroke | Men | 1 | 7 | Tadashi Honda |
| 1974 | Asian Games | 100m backstroke | Men | 3 | 2 | Toshimitsu Yamamoto |
| 1974 | Asian Games | 100m breaststroke | Men | 1 | 7 | Nobutaka Taguchi |
| 1974 | Asian Games | 100m breaststroke | Men | 3 | 2 | Kenichi Ueda |
| 1974 | Asian Games | 100m butterfly | Men | 1 | 7 | Hideaki Hara |
| 1974 | Asian Games | 100m butterfly | Men | 3 | 2 | Yasuhiro Komazaki |
| 1974 | Asian Games | 100m freestyle | Men | 3 | 2 | Akira Iida |
| 1974 | Asian Games | 1500m freestyle | Men | 2 | 4 | Shuji Ono |
| 1974 | Asian Games | 200m backstroke | Men | 1 | 7 | Tadashi Honda |
| 1974 | Asian Games | 200m backstroke | Men | 3 | 2 | Toshimitsu Yamamoto |
| 1974 | Asian Games | 200m breaststroke | Men | 1 | 7 | Nobutaka Taguchi |
| 1974 | Asian Games | 200m breaststroke | Men | 3 | 2 | Kenichi Ueda |
| 1974 | Asian Games | 200m butterfly | Men | 1 | 7 | Yasuhiro Komazaki |
| 1974 | Asian Games | 200m butterfly | Men | 2 | 4 | Hideaki Hara |
| 1974 | Asian Games | 200m freestyle | Men | 1 | 7 | Yukio Horiuchi |
| 1974 | Asian Games | 200m individual medley | Men | 1 | 7 | Jiro Sasaki |
| 1974 | Asian Games | 200m individual medley | Men | 2 | 4 | Tsuyoshi Yanagidate |
| 1974 | Asian Games | 400m freestyle | Men | 2 | 4 | Shuji Ono |
| 1974 | Asian Games | 400m freestyle | Men | 3 | 2 | Kaname Sakamoto |
| 1974 | Asian Games | 400m individual medley | Men | 1 | 7 | Tsuyoshi Yanagidate |
| 1974 | Asian Games | 400m individual medley | Men | 2 | 4 | Jiro Sasaki |
| 1974 | Asian Games | 4x100m freestyle | Men | 1 | 21 | – |
| 1974 | Asian Games | 4x100m medley | Men | 1 | 21 | – |
| 1974 | Asian Games | 4x200m freestyle | Men | 1 | 21 | – |
| 1974 | Asian Games | 100m backstroke | Women | 1 | 7 | Suzuko Matsumura |
| 1974 | Asian Games | 100m backstroke | Women | 2 | 4 | Taeko Sudo |
| 1973 | World Championship | 100m breaststroke | Men | 3 | 3 | Nobutaka Taguchi |
| 1973 | World Championship | 200m breaststroke | Men | 3 | 3 | Nobutaka Taguchi |
| 1973 | World Championship | 100m butterfly | Women | 3 | 3 | Mayumi Aoki |
| 1972 | Olympic Games | 100m breaststroke | Men | 1 | 30 | Nobutaka Taguchi |
| 1972 | Olympic Games | 200m breaststroke | Men | 3 | 6 | Nobutaka Taguchi |
| 1972 | Olympic Games | 100m butterfly | Women | 1 | 30 | Mayumi Aoki |
| 1970 | Asian Games | 100m freestyle | Women | 1 | 7 | Yoshimi Nishigawa |
| 1970 | Asian Games | 100m freestyle | Women | 2 | 4 | Shigeko Kawanishi |
| 1970 | Asian Games | 200m breaststroke | Women | 1 | 7 | Chieno Shibata |
| 1970 | Asian Games | 200m breaststroke | Women | 2 | 4 | Hitomi Tanigami |
| 1970 | Asian Games | 200m freestyle | Women | 1 | 7 | Yoshimi Nishigawa |
| 1970 | Asian Games | 200m freestyle | Women | 2 | 4 | Shigeko Kawanishi |
| 1970 | Asian Games | 200m individual medley | Women | 1 | 7 | Yoshimi Nishigawa |
| 1970 | Asian Games | 200m individual medley | Women | 2 | 4 | Yukari Takemoto |
| 1970 | Asian Games | 400m freestyle | Women | 1 | 7 | Tae Iguchi |
| 1970 | Asian Games | 400m freestyle | Women | 3 | 2 | Eiko Goshi |
| 1970 | Asian Games | 4x100m freestyle | Women | 1 | 21 | – |
| 1970 | Asian Games | 4x100m medley | Women | 1 | 21 | – |
| 1970 | Asian Games | 100m backstroke | Men | 1 | 7 | Tadashi Honda |
| 1970 | Asian Games | 100m backstroke | Men | 2 | 4 | Koji Hoshino |
| 1970 | Asian Games | 100m breaststroke | Men | 1 | 7 | Nobutaka Taguchi |
| 1970 | Asian Games | 100m butterfly | Men | 1 | 7 | Yasuhiro Komazaki |
| 1970 | Asian Games | 100m butterfly | Men | 2 | 4 | Satoshi Maruya |
| 1970 | Asian Games | 100m freestyle | Men | 1 | 7 | Shojiro Sawa |
| 1970 | Asian Games | 100m freestyle | Men | 2 | 4 | Kunihiro Iwasaki |
| 1970 | Asian Games | 1500m freestyle | Men | 2 | 4 | Akira Iida |
| 1970 | Asian Games | 1500m freestyle | Men | 3 | 2 | Toshinori Murata |
| 1970 | Asian Games | 200m backstroke | Men | 1 | 7 | Tadashi Honda |
| 1970 | Asian Games | 200m backstroke | Men | 2 | 4 | Koji Hoshino |
| 1970 | Asian Games | 200m breaststroke | Men | 1 | 7 | Nobutaka Taguchi |
| 1970 | Asian Games | 200m butterfly | Men | 1 | 7 | Yasuhiro Komazaki |
| 1970 | Asian Games | 200m butterfly | Men | 2 | 4 | Satoshi Maruya |
| 1970 | Asian Games | 200m freestyle | Men | 1 | 7 | Kunihiro Iwasaki |
| 1970 | Asian Games | 200m freestyle | Men | 2 | 4 | Noboru Waseda |
| 1970 | Asian Games | 400m freestyle | Men | 2 | 4 | Akira Iida |
| 1970 | Asian Games | 400m freestyle | Men | 3 | 2 | Toshinori Murata |
| 1970 | Asian Games | 400m individual medley | Men | 1 | 7 | Toru Udo |
| 1970 | Asian Games | 400m individual medley | Men | 2 | 4 | Junhachiro Tsutsumi |
| 1970 | Asian Games | 4x100m freestyle | Men | 1 | 21 | – |
| 1970 | Asian Games | 4x100m medley | Men | 1 | 21 | – |
| 1970 | Asian Games | 4x200m freestyle | Men | 1 | 21 | – |
| 1970 | Asian Games | 100m backstroke | Women | 1 | 7 | Yukiko Goshi |
| 1970 | Asian Games | 100m backstroke | Women | 2 | 4 | Kikuyo Ishii |
| 1970 | Asian Games | 100m breaststroke | Women | 1 | 7 | Hitomi Tanigami |
| 1970 | Asian Games | 100m breaststroke | Women | 2 | 4 | Chieno Shibata |
| 1970 | Asian Games | 100m butterfly | Women | 1 | 7 | Mayumi Aoki |
| 1970 | Asian Games | 100m butterfly | Women | 2 | 4 | Kazuyo Banno |
| 1966 | Asian Games | 100m backstroke | Men | 1 | 7 | Yushiro Hayashi |
| 1966 | Asian Games | 100m backstroke | Men | 2 | 4 | Kishio Tanaka |
| 1966 | Asian Games | 100m breaststroke | Men | 1 | 7 | Kenji Ishikawa |
| 1966 | Asian Games | 100m breaststroke | Men | 2 | 4 | Koichi Yamanami |
| 1966 | Asian Games | 100m butterfly | Men | 1 | 7 | Isao Nakajima |
| 1966 | Asian Games | 100m butterfly | Men | 3 | 2 | Yasuo Takada |
| 1966 | Asian Games | 100m freestyle | Men | 1 | 7 | Kunihiro Iwasaki |
| 1966 | Asian Games | 100m freestyle | Men | 2 | 4 | Teruhiko Kitani |
| 1966 | Asian Games | 1500m freestyle | Men | 1 | 7 | Etsujiro Takase |
| 1966 | Asian Games | 1500m freestyle | Men | 2 | 4 | Katsuji Ito |
| 1966 | Asian Games | 200m backstroke | Men | 1 | 7 | Shigeo Fukushima |
| 1966 | Asian Games | 200m backstroke | Men | 2 | 4 | Yushiro Hayashi |
| 1966 | Asian Games | 200m breaststroke | Men | 1 | 7 | Koichi Yamanami |
| 1966 | Asian Games | 200m breaststroke | Men | 2 | 4 | Kenji Ishikawa |
| 1966 | Asian Games | 200m butterfly | Men | 1 | 7 | Yasuo Takada |
| 1966 | Asian Games | 200m butterfly | Men | 2 | 4 | Shinji Yamanouchi |
| 1966 | Asian Games | 200m freestyle | Men | 1 | 7 | Kunihiro Iwasaki |
| 1966 | Asian Games | 400m freestyle | Men | 1 | 7 | Etsujiro Takase |
| 1966 | Asian Games | 400m individual medley | Men | 1 | 7 | Shigeo Fukushima |
| 1966 | Asian Games | 4x100m medley | Men | 1 | 21 | – |
| 1966 | Asian Games | 4x200m freestyle | Men | 1 | 21 | – |
| 1966 | Asian Games | 100m backstroke | Women | 1 | 7 | Satoko Tanaka |
| 1966 | Asian Games | 100m backstroke | Women | 2 | 4 | Kimiko Gabe |
| 1966 | Asian Games | 100m breaststroke | Women | 1 | 7 | Yoshiko Morizane |
| 1966 | Asian Games | 100m breaststroke | Women | 2 | 4 | Sakiko Yamashita |
| 1966 | Asian Games | 100m butterfly | Women | 1 | 7 | Masako Ishii |
| 1966 | Asian Games | 100m butterfly | Women | 2 | 4 | Eiko Takahashi |
| 1966 | Asian Games | 100m freestyle | Women | 1 | 7 | Michiko Kihara |
| 1966 | Asian Games | 200m breaststroke | Women | 1 | 7 | Sakiko Yamashita |
| 1966 | Asian Games | 200m breaststroke | Women | 2 | 4 | Yoshiko Morizane |
| 1966 | Asian Games | 200m freestyle | Women | 1 | 7 | Michiko Kihara |
| 1966 | Asian Games | 200m freestyle | Women | 3 | 2 | Kazue Hayakawa |
| 1966 | Asian Games | 200m individual medley | Women | 1 | 7 | Yasuko Fujii |
| 1966 | Asian Games | 400m freestyle | Women | 1 | 7 | Kazue Hayakawa |
| 1966 | Asian Games | 400m freestyle | Women | 3 | 2 | Miwako Kobayashi |
| 1966 | Asian Games | 4x100m freestyle | Women | 1 | 21 | – |
| 1966 | Asian Games | 4x100m medley | Women | 1 | 21 | – |
| 1964 | Olympic Games | 4x200m freestyle | Men | 3 | 18 | – |
| 1962 | Asian Games | 100m backstroke | Men | 1 | 7 | Kazuo Tomita |
| 1962 | Asian Games | 100m backstroke | Men | 2 | 4 | Keisuke Ito |
| 1962 | Asian Games | 100m breaststroke | Men | 1 | 7 | Kenji Ishikawa |
| 1962 | Asian Games | 100m breaststroke | Men | 2 | 4 | Kiyoshi Nakagawa |
| 1962 | Asian Games | 100m butterfly | Men | 1 | 7 | Kenzo Izutsu |
| 1962 | Asian Games | 100m butterfly | Men | 2 | 4 | Koji Iwamoto |
| 1962 | Asian Games | 100m freestyle | Men | 1 | 7 | Keigo Shimizu |
| 1962 | Asian Games | 100m freestyle | Men | 2 | 4 | Tadaharu Goto |
| 1962 | Asian Games | 1500m freestyle | Men | 2 | 4 | Tohachiro Matsuki |
| 1962 | Asian Games | 1500m freestyle | Men | 3 | 2 | Toshiaki Sahara |
| 1962 | Asian Games | 200m backstroke | Men | 1 | 7 | Keisuke Ito |
| 1962 | Asian Games | 200m backstroke | Men | 2 | 4 | Kazuo Tomita |
| 1962 | Asian Games | 200m breaststroke | Men | 1 | 7 | Kiyoshi Nakagawa |
| 1962 | Asian Games | 200m breaststroke | Men | 2 | 4 | Kenji Ishikawa |
| 1962 | Asian Games | 200m butterfly | Men | 1 | 7 | Kenzo Izutsu |
| 1962 | Asian Games | 200m butterfly | Men | 2 | 4 | Koji Iwamoto |
| 1962 | Asian Games | 200m freestyle | Men | 1 | 7 | Toshizo Umemoto |
| 1962 | Asian Games | 200m freestyle | Men | 2 | 4 | Tadaharu Goto |
| 1962 | Asian Games | 400m freestyle | Men | 2 | 4 | Toshizo Umemoto |
| 1962 | Asian Games | 400m freestyle | Men | 3 | 2 | Masami Nakabo |
| 1962 | Asian Games | 4x100m medley | Men | 1 | 21 | – |
| 1962 | Asian Games | 4x200m freestyle | Men | 1 | 21 | – |
| 1962 | Asian Games | 100m backstroke | Women | 1 | 7 | Satoko Tanaka |
| 1962 | Asian Games | 100m backstroke | Women | 2 | 4 | Hiromi Yotsumoto |
| 1962 | Asian Games | 100m breaststroke | Women | 1 | 7 | Noriko Yamamoto |
| 1962 | Asian Games | 100m breaststroke | Women | 3 | 2 | Sachiko Aoki |
| 1962 | Asian Games | 100m butterfly | Women | 1 | 7 | Eiko Takahashi |
| 1962 | Asian Games | 100m butterfly | Women | 2 | 4 | Michiyo Nakanishi |
| 1962 | Asian Games | 100m freestyle | Women | 1 | 7 | Yoshiko Sato |
| 1962 | Asian Games | 100m freestyle | Women | 2 | 4 | Toyoko Kimura |
| 1962 | Asian Games | 200m breaststroke | Women | 1 | 7 | Noriko Yamamoto |
| 1962 | Asian Games | 200m breaststroke | Women | 2 | 4 | Sachiko Aoki |
| 1962 | Asian Games | 200m freestyle | Women | 1 | 7 | Yoshiko Sato |
| 1962 | Asian Games | 200m freestyle | Women | 2 | 4 | Yumiko Kobayashi |
| 1962 | Asian Games | 400m freestyle | Women | 1 | 7 | Toyoko Kimura |
| 1962 | Asian Games | 400m freestyle | Women | 2 | 4 | Kazue Hayakawa |
| 1962 | Asian Games | 4x100m freestyle | Women | 1 | 21 | – |
| 1962 | Asian Games | 4x100m medley | Women | 1 | 21 | – |
| 1960 | Olympic Games | 200m breaststroke | Men | 2 | 18 | Yoshihiko Osaki |
| 1960 | Olympic Games | 400m freestyle | Men | 2 | 18 | Tsuyoshi Yamanaka |
| 1960 | Olympic Games | 4x100m medley | Men | 3 | 18 | – |
| 1960 | Olympic Games | 4x200m freestyle | Men | 2 | 54 | – |
| 1960 | Olympic Games | 100m backstroke | Women | 3 | 6 | Satoko Tanaka |
| 1958 | Asian Games | 100m backstroke | Men | 1 | 7 | Keiji Hase |
| 1958 | Asian Games | 100m backstroke | Men | 2 | 4 | Hideo Ninomiya |
| 1958 | Asian Games | 100m breaststroke | Men | 1 | 7 | Masaru Ota |
| 1958 | Asian Games | 100m breaststroke | Men | 2 | 4 | Akio Sugiyama |
| 1958 | Asian Games | 100m butterfly | Men | 1 | 7 | Takashi Ishimoto |
| 1958 | Asian Games | 100m butterfly | Men | 2 | 4 | Fumiaki Masunaga |
| 1958 | Asian Games | 100m freestyle | Men | 1 | 7 | Manabu Koga |
| 1958 | Asian Games | 100m freestyle | Men | 3 | 2 | Shintaro Yokochi |
| 1958 | Asian Games | 1500m freestyle | Men | 1 | 7 | Tsuyoshi Yamanaka |
| 1958 | Asian Games | 1500m freestyle | Men | 2 | 4 | Hiroshi Ishii |
| 1958 | Asian Games | 200m backstroke | Men | 1 | 7 | Kazuo Tomita |
| 1958 | Asian Games | 200m backstroke | Men | 2 | 4 | Kazuo Watanabe |
| 1958 | Asian Games | 200m breaststroke | Men | 1 | 7 | Masaru Furukawa |
| 1958 | Asian Games | 200m breaststroke | Men | 3 | 2 | Hajime Waki |
| 1958 | Asian Games | 200m butterfly | Men | 1 | 7 | Takashi Ishimoto |
| 1958 | Asian Games | 200m butterfly | Men | 2 | 4 | Koichi Hirakida |
| 1958 | Asian Games | 200m freestyle | Men | 1 | 7 | Makoto Fukui |
| 1958 | Asian Games | 200m freestyle | Men | 2 | 4 | Tatsuo Fujimoto |
| 1958 | Asian Games | 400m freestyle | Men | 1 | 7 | Tsuyoshi Yamanaka |
| 1958 | Asian Games | 400m freestyle | Men | 2 | 4 | Nagatoshi Maruyama |
| 1958 | Asian Games | 4x100m medley | Men | 1 | 21 | – |
| 1958 | Asian Games | 4x200m freestyle | Men | 1 | 21 | – |
| 1958 | Asian Games | 100m backstroke | Women | 1 | 7 | Satoko Tanaka |
| 1958 | Asian Games | 100m backstroke | Women | 2 | 4 | Setsuko Okamoto |
| 1958 | Asian Games | 100m breaststroke | Women | 1 | 7 | Yoshiko Takamatsu |
| 1958 | Asian Games | 100m breaststroke | Women | 2 | 4 | Masayo Aoki |
| 1958 | Asian Games | 100m butterfly | Women | 1 | 7 | Shizue Miyabe |
| 1958 | Asian Games | 100m butterfly | Women | 3 | 2 | Tatsuyo Teragaito |
| 1958 | Asian Games | 100m freestyle | Women | 1 | 7 | Yoshiko Sato |
| 1958 | Asian Games | 100m freestyle | Women | 3 | 2 | Hitomi Jinno |
| 1958 | Asian Games | 200m breaststroke | Women | 1 | 7 | Yoshiko Takamatsu |
| 1958 | Asian Games | 200m breaststroke | Women | 2 | 4 | Noriko Odagiri |
| 1958 | Asian Games | 200m freestyle | Women | 1 | 7 | Yoshiko Sato |
| 1958 | Asian Games | 200m freestyle | Women | 3 | 2 | Ryoko Omiya |
| 1958 | Asian Games | 400m freestyle | Women | 1 | 7 | Emiko Shibahara |
| 1958 | Asian Games | 400m freestyle | Women | 3 | 2 | Eiko Wada |
| 1958 | Asian Games | 4x100m freestyle | Women | 1 | 21 | – |
| 1956 | Olympic Games | 1500m freestyle | Men | 2 | 18 | Tsuyoshi Yamanaka |
| 1956 | Olympic Games | 200m breaststroke | Men | 1 | 30 | Masaru Furukawa |
| 1956 | Olympic Games | 200m breaststroke | Men | 2 | 18 | Masahiro Yoshimura |
| 1956 | Olympic Games | 200m butterfly | Men | 2 | 18 | Takashi Ishimoto |
| 1956 | Olympic Games | 400m freestyle | Men | 2 | 18 | Tsuyoshi Yamanaka |
| 1954 | Asian Games | 100m backstroke | Men | 1 | 7 | Keiji Hase |
| 1954 | Asian Games | 100m backstroke | Men | 2 | 4 | Norihiko Kurahashi |
| 1954 | Asian Games | 100m backstroke | Men | 3 | 2 | Takuro Ashida |
| 1954 | Asian Games | 100m freestyle | Men | 1 | 7 | Hiroshi Suzuki |
| 1954 | Asian Games | 100m freestyle | Men | 2 | 4 | Teijiro Tanikawa |
| 1954 | Asian Games | 1500m freestyle | Men | 1 | 7 | Yukiyoshi Aoki |
| 1954 | Asian Games | 1500m freestyle | Men | 2 | 4 | Shichiro Shintaku |
| 1954 | Asian Games | 1500m freestyle | Men | 3 | 2 | Tsutomu Nagashima |
| 1954 | Asian Games | 200m breaststroke | Men | 1 | 7 | Mamoru Tanaka |
| 1954 | Asian Games | 200m breaststroke | Men | 2 | 4 | Masaru Furukawa |
| 1954 | Asian Games | 200m breaststroke | Men | 3 | 2 | Masao Togami |
| 1954 | Asian Games | 400m freestyle | Men | 1 | 7 | Yoshihiro Shoji |
| 1954 | Asian Games | 400m freestyle | Men | 2 | 4 | Katsuji Yamashita |
| 1954 | Asian Games | 4x200m freestyle | Men | 1 | 21 | – |
| 1954 | Asian Games | 100m backstroke | Women | 2 | 4 | Keiko Sadamori |
| 1954 | Asian Games | 100m backstroke | Women | 3 | 2 | Midori Morimae |
| 1954 | Asian Games | 100m freestyle | Women | 2 | 4 | Tomiko Atarashi |
| 1954 | Asian Games | 100m freestyle | Women | 3 | 2 | Shizue Miyabe |
| 1954 | Asian Games | 200m breaststroke | Women | 1 | 7 | Masayo Aoki |
| 1954 | Asian Games | 200m breaststroke | Women | 2 | 4 | Kazuko Sakamoto |
| 1954 | Asian Games | 200m breaststroke | Women | 3 | 2 | Chizuko Urahata |
| 1954 | Asian Games | 400m freestyle | Women | 1 | 7 | Misako Tamura |
| 1954 | Asian Games | 400m freestyle | Women | 2 | 4 | Akiko Miyazaki |
| 1954 | Asian Games | 400m freestyle | Women | 3 | 2 | Yoshiko Sato |
| 1954 | Asian Games | 4x100m freestyle | Women | 1 | 21 | – |
| 1952 | Olympic Games | 100m freestyle | Men | 2 | 18 | Hiroshi Suzuki |
| 1952 | Olympic Games | 1500m freestyle | Men | 2 | 18 | Shiro Hashizume |
| 1952 | Olympic Games | 4x200m freestyle | Men | 2 | 54 | – |
| 1936 | Olympic Games | 100m backstroke | Men | 3 | 6 | Masaji Kiyokawa |
| 1936 | Olympic Games | 100m freestyle | Men | 2 | 18 | Masanori Yusa |
| 1936 | Olympic Games | 100m freestyle | Men | 3 | 6 | Shigeo Arai |
| 1936 | Olympic Games | 1500m freestyle | Men | 1 | 30 | Noboru Terada |
| 1936 | Olympic Games | 1500m freestyle | Men | 3 | 6 | Shunpei Uto |
| 1936 | Olympic Games | 200m breaststroke | Men | 1 | 30 | Tetsuo Hamuro |
| 1936 | Olympic Games | 200m breaststroke | Men | 3 | 6 | Reizo Koike |
| 1936 | Olympic Games | 400m freestyle | Men | 2 | 18 | Shunpei Uto |
| 1936 | Olympic Games | 400m freestyle | Men | 3 | 6 | Shozo Makino |
| 1936 | Olympic Games | 4x200m freestyle | Men | 1 | 90 | – |
| 1936 | Olympic Games | 200m breaststroke | Women | 1 | 30 | Hideko Maehata |
| 1932 | Olympic Games | 100m backstroke | Men | 1 | 30 | Masaji Kiyokawa |
| 1932 | Olympic Games | 100m backstroke | Men | 2 | 18 | Toshio Irie |
| 1932 | Olympic Games | 100m backstroke | Men | 3 | 6 | Kentaro Kawatsu |
| 1932 | Olympic Games | 100m freestyle | Men | 1 | 30 | Yasuji Miyazaki |
| 1932 | Olympic Games | 100m freestyle | Men | 2 | 18 | Tatsugo Kawaishi |
| 1932 | Olympic Games | 1500m freestyle | Men | 1 | 30 | Kusuo Kitamura |
| 1932 | Olympic Games | 1500m freestyle | Men | 2 | 18 | Shozo Makino |
| 1932 | Olympic Games | 200m breaststroke | Men | 1 | 30 | Yoshiyuki Tsuruta |
| 1932 | Olympic Games | 200m breaststroke | Men | 2 | 18 | Reizo Koike |
| 1932 | Olympic Games | 400m freestyle | Men | 3 | 6 | Tsutomu Ōyokota |
| 1932 | Olympic Games | 4x200m freestyle | Men | 1 | 90 | – |
| 1932 | Olympic Games | 200m breaststroke | Women | 2 | 18 | Hideko Maehata |
| 1928 | Olympic Games | 100m freestyle | Men | 3 | 6 | Katsuo Takaishi |
| 1928 | Olympic Games | 200m breaststroke | Men | 1 | 30 | Yoshiyuki Tsuruta |
| 1928 | Olympic Games | 4x200m freestyle | Men | 2 | 54 | – |