Subject Analysis
First select a ranking, then choose an athlete, brand, team or country.
Japan
Career
1928 - 2026
Best year
1932
Total points
5258
Best results
2x 1. Olympic Games
All-time rank
#3
10-year rank
#7
Ranking Development
Points distribution
Disciplines
Contests
| Year | Contest | Discipline | Category | Position | Points | Name |
|---|---|---|---|---|---|---|
| 2026 | Asian Games | 200m breaststroke | Men | 1 | 7 | Shin Ohashi |
| 2026 | Asian Games | 800m freestyle | Men | 2 | 4 | Kaito Tabuchi |
| 2026 | Asian Games | 4x100m freestyle | Men | 3 | 6 | - |
| 2026 | Pan Pacific Championship | 4x100m medley | Men | 2 | 12 | - |
| 2026 | Pan Pacific Championship | 200m backstroke | Men | 1 | 7 | Yumeki Kojima |
| 2026 | Asian Games | 200m individual medley | Men | 2 | 4 | Yumeki Kojima |
| 2026 | Asian Games | 200m individual medley | Men | 1 | 7 | Tomoyuki Matsushita |
| 2026 | Asian Games | 4x100m medley | Men | 2 | 12 | - |
| 2026 | Pan Pacific Championship | 4x200m freestyle | Men | 3 | 6 | - |
| 2026 | Asian Games | 50m breaststroke | Men | 3 | 2 | Shin Ohashi |
| 2026 | Asian Games | 200m backstroke | Men | 1 | 7 | Kodai Nishiono |
| 2026 | Pan Pacific Championship | 4x100m freestyle | Men | 2 | 12 | - |
| 2026 | Pan Pacific Championship | 200m breaststroke | Men | 3 | 2 | Shin Ohashi |
| 2026 | Asian Games | 400m freestyle | Men | 2 | 4 | Kazushi Imafuku |
| 2026 | Asian Games | 50m butterfly | Men | 2 | 4 | Shoon Mitsunaga |
| 2026 | Asian Games | 100m butterfly | Men | 3 | 2 | Katsuhiro Matsumoto |
| 2026 | Pan Pacific Championship | 4x100m medley | Men | 1 | 21 | - |
| 2026 | Asian Games | 100m breaststroke | Men | 1 | 7 | Shin Ohashi |
| 2026 | Asian Games | 100m backstroke | Men | 2 | 4 | Hidekazu Takehara |
| 2026 | Pan Pacific Championship | 4x100m freestyle | Men | 1 | 21 | - |
| 2026 | Asian Games | 1500m freestyle | Men | 2 | 4 | Kaito Tabuchi |
| 2026 | Asian Games | 400m individual medley | Men | 2 | 4 | Tomoyuki Matsushita |
| 2026 | Pan Pacific Championship | 4x200m freestyle | Men | 1 | 21 | - |
| 2026 | Asian Games | 1500m freestyle | Men | 3 | 2 | Kazushi Imafuku |
| 2026 | Pan Pacific Championship | 200m individual medley | Men | 1 | 7 | Tomoyuki Matsushita |
| 2026 | Pan Pacific Championship | 1500m freestyle | Men | 2 | 4 | Kazushi Imafuku |
| 2026 | Pan Pacific Championship | 400m individual medley | Men | 1 | 7 | Tomoyuki Matsushita |
| 2026 | Asian Games | 400m individual medley | Men | 1 | 7 | Yumeki Kojima |
| 2026 | Asian Games | 200m freestyle | Men | 3 | 2 | Tatsuya Murasa |
| 2026 | Pan Pacific Championship | 4x100m freestyle | Men | 3 | 6 | - |
| 2026 | Pan Pacific Championship | 4x200m freestyle | Men | 2 | 12 | - |
| 2026 | Asian Games | 4x200m freestyle | Men | 2 | 12 | - |
| 2026 | Asian Games | 100m butterfly | Men | 1 | 7 | Shoon Mitsunaga |
| 2026 | Pan Pacific Championship | 4x100m medley | Men | 3 | 6 | - |
| 2026 | Pan Pacific Championship | 100m breaststroke | Men | 2 | 4 | Shin Ohashi |
| 2025 | Asian Championship | 200m butterfly | Men | 2 | 4 | Ryo Kuratsuka |
| 2025 | World Championship | 400m individual medley | Men | 2 | 6 | Tomoyuki Matsushita |
| 2025 | World Championship | 200m breaststroke | Men | 2 | 6 | Ippei Watanabe |
| 2025 | Asian Championship | 200m breaststroke | Men | 2 | 4 | Iori Miyazaki |
| 2025 | Asian Championship | 400m individual medley | Men | 3 | 2 | Shun Tanaka |
| 2025 | World Championship | 200m freestyle | Men | 3 | 3 | Tatsuya Murasa |
| 2025 | Asian Championship | 200m freestyle | Men | 3 | 2 | Hinata Ando |
| 2025 | Asian Championship | 200m backstroke | Men | 2 | 4 | Rui Yoshida |
| 2024 | World Championship 25m | 200m breaststroke | Men | 3 | 1 | Yamato Fukasawa |
| 2024 | World Championship | 400m individual medley | Men | 3 | 3 | Daiya Seto |
| 2024 | Olympic Games | 400m individual medley | Men | 2 | 18 | Tomoyuki Matsushita |
| 2024 | World Championship | 200m butterfly | Men | 1 | 10 | Tomoru Honda |
| 2023 | World Championship | 200m butterfly | Men | 3 | 3 | Tomoru Honda |
| 2023 | World Championship | 400m individual medley | Men | 3 | 3 | Daiya Seto |
| 2022 | Asian Games | 4x100m medley | Men | 3 | 6 | - |
| 2022 | Asian Games | 200m butterfly | Men | 1 | 7 | Tomoru Honda |
| 2022 | Asian Games | 400m individual medley | Men | 1 | 7 | Tomoru Honda |
| 2022 | Asian Games | 100m butterfly | Men | 1 | 7 | Katsuhiro Matsumoto |
| 2022 | Asian Games | 200m backstroke | Men | 3 | 2 | Hidekazu Takehara |
| 2022 | World Championship 25m | 200m breaststroke | Men | 1 | 4 | Daiya Seto |
| 2022 | Asian Games | 4x100m freestyle | Men | 3 | 6 | - |
| 2022 | World Championship | 100m butterfly | Men | 2 | 6 | Naoki Mizunuma |
| 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 | World Championship 25m | 200m butterfly | Men | 2 | 2 | Daiya Seto |
| 2022 | Asian Games | 4x200m freestyle | Men | 3 | 6 | - |
| 2022 | Asian Games | 50m backstroke | Men | 3 | 2 | Ryosuke Irie |
| 2022 | Asian Games | 200m individual medley | Men | 3 | 2 | Daiya Seto |
| 2022 | Asian Games | 100m backstroke | Men | 2 | 4 | Ryosuke Irie |
| 2022 | World Championship 25m | 400m individual medley | Men | 1 | 4 | Daiya Seto |
| 2022 | Asian Games | 200m breaststroke | Men | 3 | 2 | Ippei Watanabe |
| 2022 | Asian Games | 1500m freestyle | Men | 3 | 2 | Shogo Takeda |
| 2022 | Asian Games | 400m individual medley | Men | 2 | 4 | Daiya Seto |
| 2021 | World Championship 25m | 400m individual medley | Men | 1 | 4 | Daiya Seto |
| 2021 | World Championship 25m | 200m individual medley | Men | 1 | 4 | Daiya Seto |
| 2020 | Olympic Games | 200m butterfly | Men | 2 | 18 | Tomoru Honda |
| 2019 | World Championship | 200m freestyle | Men | 2 | 6 | Katsuhiro Matsumoto |
| 2019 | World Championship | 200m butterfly | Men | 2 | 6 | Daiya Seto |
| 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 | 200m breaststroke | Men | 3 | 3 | Ippei Watanabe |
| 2018 | Asian Games | 50m freestyle | Men | 2 | 4 | Katsumi Nakamura |
| 2018 | Pan Pacific Championship | 200m breaststroke | Men | 1 | 7 | Ippei Watanabe |
| 2018 | Asian Games | 200m backstroke | Men | 2 | 4 | Ryosuke Irie |
| 2018 | Pan Pacific Championship | 4x100m freestyle | Men | 3 | 6 | - |
| 2018 | World Championship 25m | 4x100m medley | Men | 3 | 3 | - |
| 2018 | Asian Games | 100m backstroke | Men | 2 | 4 | Ryosuke Irie |
| 2018 | Asian Games | 400m individual medley | Men | 2 | 4 | Kosuke Hagino |
| 2018 | Pan Pacific Championship | 200m freestyle | Men | 3 | 2 | Katsuhiro Matsumoto |
| 2018 | Asian Games | 200m butterfly | Men | 1 | 7 | Daiya Seto |
| 2018 | Asian Games | 4x100m freestyle | Men | 1 | 21 | - |
| 2018 | Asian Games | 200m breaststroke | Men | 1 | 7 | Yasuhiro Koseki |
| 2018 | Asian Games | 400m individual medley | Men | 1 | 7 | Daiya Seto |
| 2018 | Asian Games | 800m freestyle | Men | 2 | 4 | Shogo Takeda |
| 2018 | Pan Pacific Championship | 4x100m medley | Men | 2 | 12 | - |
| 2018 | Asian Games | 50m breaststroke | Men | 1 | 7 | Yasuhiro Koseki |
| 2018 | World Championship 25m | 200m butterfly | Men | 1 | 4 | Daiya Seto |
| 2018 | Asian Games | 200m individual medley | Men | 2 | 4 | Kosuke Hagino |
| 2018 | Asian Games | 200m freestyle | Men | 2 | 4 | Katsuhiro Matsumoto |
| 2018 | Pan Pacific Championship | 400m individual medley | Men | 2 | 4 | Kosuke Hagino |
| 2018 | Asian Games | 4x200m freestyle | Men | 1 | 21 | - |
| 2018 | Pan Pacific Championship | 100m backstroke | Men | 2 | 4 | Ryosuke Irie |
| 2018 | World Championship 25m | 400m individual medley | Men | 1 | 4 | Daiya Seto |
| 2018 | Asian Games | 200m backstroke | Men | 3 | 2 | Keita Sunama |
| 2018 | Pan Pacific Championship | 100m breaststroke | Men | 1 | 7 | Yasuhiro Koseki |
| 2018 | Asian Games | 4x100m medley | Men | 2 | 12 | - |
| 2018 | Pan Pacific Championship | 4x200m freestyle | Men | 3 | 6 | - |
| 2018 | Pan Pacific Championship | 200m backstroke | Men | 2 | 4 | Ryosuke Irie |
| 2018 | Pan Pacific Championship | 200m individual medley | Men | 3 | 2 | Kosuke Hagino |
| 2018 | Asian Games | 50m freestyle | Men | 3 | 2 | Shunichi Nakao |
| 2018 | World Championship 25m | 200m individual medley | Men | 3 | 1 | Hiromasa Fujimori |
| 2018 | Asian Games | 100m freestyle | Men | 1 | 7 | Shinri Shioura |
| 2018 | Asian Games | 200m butterfly | Men | 2 | 4 | Nao Horomura |
| 2018 | Asian Games | 100m freestyle | Men | 2 | 4 | Katsumi Nakamura |
| 2018 | Asian Games | 400m freestyle | Men | 2 | 4 | Naito Ehara |
| 2018 | Asian Games | 400m freestyle | Men | 3 | 2 | Kosuke Hagino |
| 2018 | Asian Games | 100m butterfly | Men | 3 | 2 | Yuki Kobori |
| 2018 | Pan Pacific Championship | 200m butterfly | Men | 1 | 7 | Daiya Seto |
| 2018 | Asian Games | 100m breaststroke | Men | 1 | 7 | Yasuhiro Koseki |
| 2018 | Pan Pacific Championship | 400m individual medley | Men | 3 | 2 | Daiya Seto |
| 2018 | Asian Games | 200m breaststroke | Men | 2 | 4 | Ippei Watanabe |
| 2018 | World Championship 25m | 100m breaststroke | Men | 3 | 1 | Yasuhiro Koseki |
| 2018 | Asian Games | 50m backstroke | Men | 2 | 4 | Ryosuke Irie |
| 2017 | World Championship | 200m breaststroke | Men | 3 | 3 | Ippei Watanabe |
| 2017 | World Championship | 50m backstroke | Men | 2 | 6 | Junya Koga |
| 2017 | World Championship | 400m individual medley | Men | 3 | 3 | Daiya Seto |
| 2017 | World Championship | 200m breaststroke | Men | 2 | 6 | Yasuhiro Koseki |
| 2017 | World Championship | 200m butterfly | Men | 3 | 3 | Daiya Seto |
| 2017 | World Championship | 200m individual medley | Men | 2 | 6 | Kosuke Hagino |
| 2016 | Asian Championship | 4x200m freestyle | Men | 1 | 21 | - |
| 2016 | Asian Championship | 50m breaststroke | Men | 1 | 7 | Yasuhiro Koseki |
| 2016 | Asian Championship | 50m freestyle | Men | 1 | 7 | Katsumi Nakamura |
| 2016 | Asian Championship | 100m butterfly | Men | 2 | 4 | Masato Sakai |
| 2016 | Asian Championship | 200m backstroke | Men | 3 | 2 | Keita Sunama |
| 2016 | World Championship 25m | 100m individual medley | Men | 3 | 1 | Shinri Shioura |
| 2016 | Asian Championship | 4x100m freestyle | Men | 2 | 12 | - |
| 2016 | Asian Championship | 100m breaststroke | Men | 1 | 7 | Ippei Watanabe |
| 2016 | Asian Championship | 200m freestyle | Men | 3 | 2 | Katsuhiro Matsumoto |
| 2016 | Asian Championship | 400m freestyle | Men | 2 | 4 | Tsubasa Amai |
| 2016 | Olympic Games | 200m individual medley | Men | 2 | 18 | Kosuke Hagino |
| 2016 | World Championship 25m | 50m backstroke | Men | 1 | 4 | Junya Koga |
| 2016 | Asian Championship | 200m breaststroke | Men | 1 | 7 | Ippei Watanabe |
| 2016 | Asian Championship | 4x100m medley | Men | 2 | 12 | - |
| 2016 | Asian Championship | 200m butterfly | Men | 2 | 4 | Daiya Seto |
| 2016 | World Championship 25m | 200m butterfly | Men | 3 | 1 | Daiya Seto |
| 2016 | Asian Championship | 50m backstroke | Men | 2 | 4 | Shunichi Nakao |
| 2016 | Asian Championship | 50m butterfly | Men | 3 | 2 | Takeshi Kawamoto |
| 2016 | Asian Championship | 200m individual medley | Men | 2 | 4 | Daiya Seto |
| 2016 | Olympic Games | 200m butterfly | Men | 2 | 18 | Masato Sakai |
| 2016 | World Championship 25m | 4x100m medley | Men | 3 | 3 | - |
| 2016 | Asian Championship | 100m freestyle | Men | 2 | 4 | Katsumi Nakamura |
| 2016 | World Championship 25m | 100m individual medley | Men | 2 | 2 | Daiya Seto |
| 2016 | Asian Championship | 50m breaststroke | Men | 2 | 4 | Koichiro Okazaki |
| 2016 | Asian Championship | 50m freestyle | Men | 3 | 2 | Shunichi Nakao |
| 2016 | Asian Championship | 200m individual medley | Men | 3 | 2 | Keita Sunama |
| 2016 | World Championship 25m | 4x50m freestyle | Men | 3 | 3 | - |
| 2016 | Asian Championship | 1500m freestyle | Men | 3 | 2 | Shogo Takeda |
| 2016 | Olympic Games | 400m individual medley | Men | 1 | 30 | Kosuke Hagino |
| 2016 | Olympic Games | 4x200m freestyle | Men | 3 | 18 | - |
| 2016 | Asian Championship | 100m breaststroke | Men | 2 | 4 | Yasuhiro Koseki |
| 2016 | World Championship 25m | 100m freestyle | Men | 2 | 2 | Shinri Shioura |
| 2016 | Olympic Games | 400m individual medley | Men | 3 | 6 | Daiya Seto |
| 2016 | Asian Championship | 100m backstroke | Men | 3 | 2 | Takeshi Kawamoto |
| 2016 | Asian Championship | 100m butterfly | Men | 2 | 4 | Takeshi Kawamoto |
| 2016 | World Championship 25m | 400m individual medley | Men | 1 | 4 | Daiya Seto |
| 2016 | Asian Championship | 400m individual medley | Men | 1 | 7 | Daiya Seto |
| 2016 | World Championship 25m | 4x200m freestyle | Men | 3 | 3 | - |
| 2016 | World Championship 25m | 200m backstroke | Men | 3 | 1 | Masaki Kaneko |
| 2016 | Asian Championship | 200m butterfly | Men | 1 | 7 | Masato Sakai |
| 2016 | World Championship 25m | 200m individual medley | Men | 3 | 1 | Daiya Seto |
| 2016 | Asian Championship | 50m butterfly | Men | 1 | 7 | Masayuki Kishida |
| 2015 | World Championship | 400m individual medley | Men | 1 | 10 | Daiya Seto |
| 2014 | Pan Pacific Championship | 200m individual medley | Men | 1 | 7 | Kosuke Hagino |
| 2014 | Asian Games | 100m freestyle | Men | 3 | 2 | Rammaru Harada |
| 2014 | Pan Pacific Championship | 100m butterfly | Men | 3 | 2 | Hirofumi Ikebata |
| 2014 | Pan Pacific Championship | 400m individual medley | Men | 1 | 7 | Kosuke Hagino |
| 2014 | World Championship 25m | 200m individual medley | Men | 1 | 4 | Kosuke Hagino |
| 2014 | Asian Games | 100m butterfly | Men | 3 | 2 | Hirofumi Ikebata |
| 2014 | World Championship 25m | 400m individual medley | Men | 1 | 4 | Daiya Seto |
| 2014 | Pan Pacific Championship | 200m butterfly | Men | 1 | 7 | Daiya Seto |
| 2014 | Pan Pacific Championship | 4x200m freestyle | Men | 2 | 12 | - |
| 2014 | World Championship 25m | 200m individual medley | Men | 3 | 1 | Daiya Seto |
| 2014 | Asian Games | 200m breaststroke | Men | 2 | 4 | Kazuki Kohinata |
| 2014 | Asian Games | 200m breaststroke | Men | 3 | 2 | Yasuhiro Koseki |
| 2014 | Asian Games | 50m backstroke | Men | 2 | 4 | Ryosuke Irie |
| 2014 | Asian Games | 400m individual medley | Men | 3 | 2 | Daiya Seto |
| 2014 | Asian Games | 50m freestyle | Men | 2 | 4 | Shinri Shioura |
| 2014 | Pan Pacific Championship | 400m freestyle | Men | 2 | 4 | Kosuke Hagino |
| 2014 | Pan Pacific Championship | 100m backstroke | Men | 1 | 7 | Ryosuke Irie |
| 2014 | Pan Pacific Championship | 200m breaststroke | Men | 1 | 7 | Yasuhiro Koseki |
| 2014 | Asian Games | 200m individual medley | Men | 1 | 7 | Kosuke Hagino |
| 2014 | World Championship 25m | 100m backstroke | Men | 3 | 1 | Ryosuke Irie |
| 2014 | Pan Pacific Championship | 200m freestyle | Men | 2 | 4 | Kosuke Hagino |
| 2014 | Asian Games | 100m backstroke | Men | 1 | 7 | Ryosuke Irie |
| 2014 | Asian Games | 50m breaststroke | Men | 2 | 4 | Yasuhiro Koseki |
| 2014 | Asian Games | 200m butterfly | Men | 1 | 7 | Daiya Seto |
| 2014 | Asian Games | 200m backstroke | Men | 1 | 7 | Ryosuke Irie |
| 2014 | Asian Games | 400m individual medley | Men | 1 | 7 | Kosuke Hagino |
| 2014 | Asian Games | 4x100m freestyle | Men | 2 | 12 | - |
| 2014 | Pan Pacific Championship | 4x100m medley | Men | 2 | 12 | - |
| 2014 | World Championship 25m | 400m individual medley | Men | 2 | 2 | Kosuke Hagino |
| 2014 | Pan Pacific Championship | 200m breaststroke | Men | 3 | 2 | Kazuki Kohinata |
| 2014 | Asian Games | 200m freestyle | Men | 1 | 7 | Kosuke Hagino |
| 2014 | Asian Games | 200m individual medley | Men | 2 | 4 | Hiromasa Fujimori |
| 2014 | Asian Games | 100m breaststroke | Men | 2 | 4 | Yasuhiro Koseki |
| 2014 | Asian Games | 4x200m freestyle | Men | 1 | 21 | - |
| 2014 | Asian Games | 200m backstroke | Men | 3 | 2 | Kosuke Hagino |
| 2014 | Asian Games | 50m backstroke | Men | 1 | 7 | Junya Koga |
| 2014 | Pan Pacific Championship | 100m breaststroke | Men | 1 | 7 | Yasuhiro Koseki |
| 2014 | Asian Games | 4x100m medley | Men | 2 | 12 | - |
| 2014 | Pan Pacific Championship | 200m backstroke | Men | 2 | 4 | Ryosuke Irie |
| 2014 | Pan Pacific Championship | 200m individual medley | Men | 3 | 2 | Daiya Seto |
| 2014 | World Championship 25m | 200m butterfly | Men | 2 | 2 | Daiya Seto |
| 2014 | Asian Games | 50m freestyle | Men | 3 | 2 | Kenta Ito |
| 2014 | Asian Games | 100m backstroke | Men | 3 | 2 | Kosuke Hagino |
| 2014 | Asian Games | 1500m freestyle | Men | 2 | 4 | Kohei Yamamoto |
| 2014 | Asian Games | 200m butterfly | Men | 2 | 4 | Kenta Hirai |
| 2014 | World Swimmer of the Year | Awards | Men | 1 | 2 | Kosuke Hagino |
| 2014 | Asian Games | 100m freestyle | Men | 2 | 4 | Shinri Shioura |
| 2014 | Asian Games | 400m freestyle | Men | 2 | 4 | Kosuke Hagino |
| 2013 | World Championship | 400m individual medley | Men | 1 | 10 | Daiya Seto |
| 2013 | World Championship | 200m individual medley | Men | 2 | 6 | Kosuke Hagino |
| 2013 | World Championship | 400m freestyle | Men | 2 | 6 | Kosuke Hagino |
| 2013 | World Championship | 4x100m medley | Men | 3 | 9 | - |
| 2012 | Olympic Games | 400m individual medley | Men | 3 | 6 | Kosuke Hagino |
| 2012 | Asian Championship | 1500m freestyle | Men | 2 | 4 | Shogo Takeda |
| 2012 | Olympic Games | 100m backstroke | Men | 3 | 6 | Ryosuke Irie |
| 2012 | Olympic Games | 200m breaststroke | Men | 3 | 6 | Ryo Tateishi |
| 2012 | Asian Championship | 100m backstroke | Men | 2 | 4 | Takeshi Kawamoto |
| 2012 | World Championship 25m | 400m individual medley | Men | 1 | 4 | Daiya Seto |
| 2012 | Asian Championship | 400m freestyle | Men | 3 | 2 | Takumi Komatsu |
| 2012 | Asian Championship | 4x100m freestyle | Men | 2 | 12 | - |
| 2012 | Asian Championship | 200m backstroke | Men | 3 | 2 | Keita Sunama |
| 2012 | Asian Championship | 4x200m freestyle | Men | 2 | 12 | - |
| 2012 | Olympic Games | 4x100m medley | Men | 2 | 54 | - |
| 2012 | Asian Championship | 100m breaststroke | Men | 1 | 7 | Kazuki Kohinata |
| 2012 | Asian Championship | 200m freestyle | Men | 3 | 2 | Takumi Komatsu |
| 2012 | World Championship 25m | 200m individual medley | Men | 2 | 2 | Daiya Seto |
| 2012 | Asian Championship | 400m individual medley | Men | 2 | 4 | Keita Sunama |
| 2012 | Olympic Games | 200m butterfly | Men | 3 | 6 | Takeshi Matsuda |
| 2012 | Asian Championship | 200m breaststroke | Men | 1 | 7 | Kazuki Kohinata |
| 2012 | Asian Championship | 4x100m medley | Men | 2 | 12 | - |
| 2012 | Asian Championship | 200m butterfly | Men | 2 | 4 | Masato Sakai |
| 2012 | Olympic Games | 200m backstroke | Men | 2 | 18 | Ryosuke Irie |
| 2012 | Asian Championship | 50m backstroke | Men | 2 | 4 | Takeshi Kawamoto |
| 2012 | Asian Championship | 50m butterfly | Men | 3 | 2 | Toru Maruyama |
| 2012 | Asian Championship | 100m freestyle | Men | 2 | 4 | Toru Maruyama |
| 2012 | Asian Championship | 200m breaststroke | Men | 2 | 4 | Kazuki Utsunomiya |
| 2012 | World Championship 25m | 200m butterfly | Men | 1 | 4 | Kazuya Kaneda |
| 2012 | Asian Championship | 50m breaststroke | Men | 2 | 4 | Yoshiki Yamanaka |
| 2012 | Asian Championship | 50m freestyle | Men | 3 | 2 | Toru Maruyama |
| 2012 | Asian Championship | 200m individual medley | Men | 3 | 2 | Keita Sunama |
| 2012 | Asian Championship | 100m butterfly | Men | 3 | 2 | Takeshi Kawamoto |
| 2011 | World Championship | 200m breaststroke | Men | 2 | 6 | Kosuke Kitajima |
| 2011 | World Championship | 100m backstroke | Men | 3 | 3 | Ryosuke Irie |
| 2011 | World Championship | 200m butterfly | Men | 2 | 6 | Takeshi Matsuda |
| 2011 | World Championship | 200m backstroke | Men | 2 | 6 | Ryosuke Irie |
| 2011 | World Championship | 400m individual medley | Men | 3 | 3 | Yuya Horihata |
| 2010 | Pan Pacific Championship | 50m backstroke | Men | 1 | 7 | Junya Koga |
| 2010 | Asian Games | 200m individual medley | Men | 3 | 2 | Yuya Horihata |
| 2010 | Asian Games | 200m freestyle | Men | 3 | 2 | Takeshi Matsuda |
| 2010 | Asian Games | 50m backstroke | Men | 1 | 7 | Junya Koga |
| 2010 | Pan Pacific Championship | 100m breaststroke | Men | 1 | 7 | Kosuke Kitajima |
| 2010 | Asian Games | 100m breaststroke | Men | 1 | 7 | Ryo Tateishi |
| 2010 | Asian Games | 50m freestyle | Men | 3 | 2 | Rammaru Harada |
| 2010 | Pan Pacific Championship | 200m backstroke | Men | 3 | 2 | Ryosuke Irie |
| 2010 | Asian Games | 4x200m freestyle | Men | 2 | 12 | - |
| 2010 | Asian Games | 200m butterfly | Men | 2 | 4 | Ryusuke Sakata |
| 2010 | Asian Games | 100m freestyle | Men | 3 | 2 | Takuro Fujii |
| 2010 | Pan Pacific Championship | 100m butterfly | Men | 3 | 2 | Takuro Fujii |
| 2010 | Asian Games | 4x100m medley | Men | 1 | 21 | - |
| 2010 | Pan Pacific Championship | 4x200m freestyle | Men | 2 | 12 | - |
| 2010 | Asian Games | 100m backstroke | Men | 2 | 4 | Junya Koga |
| 2010 | Asian Games | 50m backstroke | Men | 2 | 4 | Ryosuke Irie |
| 2010 | Asian Games | 400m individual medley | Men | 3 | 2 | Ken Takakuwa |
| 2010 | World Championship 25m | 200m breaststroke | Men | 1 | 4 | Naoya Tomita |
| 2010 | Asian Games | 50m freestyle | Men | 2 | 4 | Masayuki Kishida |
| 2010 | Asian Games | 200m breaststroke | Men | 1 | 7 | Naoya Tomita |
| 2010 | Pan Pacific Championship | 200m breaststroke | Men | 1 | 7 | Kosuke Kitajima |
| 2010 | Asian Games | 100m butterfly | Men | 2 | 4 | Takuro Fujii |
| 2010 | Pan Pacific Championship | 800m freestyle | Men | 3 | 2 | Takeshi Matsuda |
| 2010 | Asian Games | 50m butterfly | Men | 2 | 4 | Masayuki Kishida |
| 2010 | Pan Pacific Championship | 100m backstroke | Men | 2 | 4 | Junya Koga |
| 2010 | Asian Games | 200m individual medley | Men | 1 | 7 | Ken Takakuwa |
| 2010 | Pan Pacific Championship | 200m butterfly | Men | 3 | 2 | Takeshi Matsuda |
| 2010 | Asian Games | 100m backstroke | Men | 1 | 7 | Ryosuke Irie |
| 2010 | Asian Games | 50m breaststroke | Men | 2 | 4 | Ryo Tateishi |
| 2010 | Asian Games | 200m butterfly | Men | 1 | 7 | Takeshi Matsuda |
| 2010 | Asian Games | 200m backstroke | Men | 1 | 7 | Ryosuke Irie |
| 2010 | Asian Games | 400m individual medley | Men | 1 | 7 | Yuya Horihata |
| 2010 | Asian Games | 4x100m freestyle | Men | 2 | 12 | - |
| 2010 | Pan Pacific Championship | 4x100m medley | Men | 2 | 12 | - |
| 2009 | Asian Championship | 200m breaststroke | Men | 2 | 4 | Yukihiro Takahashi |
| 2009 | Asian Championship | 100m backstroke | Men | 3 | 2 | Takahiro Yamazaki |
| 2009 | Asian Championship | 400m individual medley | Men | 1 | 7 | Daiya Seto |
| 2009 | World Championship | 200m butterfly | Men | 3 | 3 | Takeshi Matsuda |
| 2009 | Asian Championship | 50m backstroke | Men | 1 | 7 | Nobuhiro Toyada |
| 2009 | World Championship | 200m backstroke | Men | 2 | 6 | Ryosuke Irie |
| 2009 | Asian Championship | 100m butterfly | Men | 3 | 2 | Hirofumi Ikebata |
| 2009 | Asian Championship | 200m backstroke | Men | 1 | 7 | Takahiro Yamazaki |
| 2009 | World Championship | 100m backstroke | Men | 1 | 10 | Junya Koga |
| 2009 | Asian Championship | 100m backstroke | Men | 2 | 4 | Nobuhiro Toyada |
| 2009 | Asian Championship | 200m individual medley | Men | 1 | 7 | Kosuke Hagino |
| 2009 | World Championship | 50m backstroke | Men | 2 | 6 | Junya Koga |
| 2009 | Asian Championship | 400m freestyle | Men | 3 | 2 | Jumpei Higashi |
| 2009 | Asian Championship | 200m backstroke | Men | 3 | 2 | Nobuhiro Toyada |
| 2009 | Asian Championship | 4x200m freestyle | Men | 2 | 12 | - |
| 2009 | Asian Championship | 1500m freestyle | Men | 3 | 2 | Jumpei Higashi |
| 2009 | Asian Championship | 200m breaststroke | Men | 1 | 7 | Akihiro Yamaguchi |
| 2009 | Asian Championship | 4x100m medley | Men | 2 | 12 | - |
| 2009 | Asian Championship | 50m backstroke | Men | 2 | 4 | Kosuke Hagino |
| 2009 | Asian Championship | 400m individual medley | Men | 3 | 2 | Keita Sameshima |
| 2008 | Olympic Games | 100m breaststroke | Men | 1 | 30 | Kosuke Kitajima |
| 2008 | Olympic Games | 4x100m medley | Men | 3 | 18 | - |
| 2008 | Olympic Games | 200m butterfly | Men | 3 | 6 | Takeshi Matsuda |
| 2008 | Olympic Games | 200m breaststroke | Men | 1 | 30 | Kosuke Kitajima |
| 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 | - |
| 2006 | Asian Games | 100m butterfly | Men | 2 | 4 | Ryo Takayasu |
| 2006 | Asian Games | 200m individual medley | Men | 2 | 4 | Ken Takakuwa |
| 2006 | Asian Games | 400m freestyle | Men | 3 | 2 | Takeshi Matsuda |
| 2006 | Asian Games | 50m butterfly | Men | 2 | 4 | Ryo Takayasu |
| 2006 | Asian Games | 100m breaststroke | Men | 2 | 4 | Makoto Yamashita |
| 2006 | Asian Games | 4x200m freestyle | Men | 1 | 21 | - |
| 2006 | Asian Championship | 200m individual medley | Men | 3 | 2 | Taishi Okude |
| 2006 | Asian Games | 200m backstroke | Men | 3 | 2 | Takashi Nakano |
| 2006 | Asian Games | 200m individual medley | Men | 1 | 7 | Hidemasa Sano |
| 2006 | Pan Pacific Championship | 200m butterfly | Men | 3 | 2 | Takeshi Matsuda |
| 2006 | Asian Games | 100m backstroke | Men | 1 | 7 | Junichi Miyashita |
| 2006 | Asian Games | 50m breaststroke | Men | 2 | 4 | Kosuke Kitajima |
| 2006 | Pan Pacific Championship | 100m butterfly | Men | 2 | 4 | Ryo Takayasu |
| 2006 | Asian Championship | 200m breaststroke | Men | 3 | 2 | Yuichi Narisawa |
| 2006 | Asian Games | 200m backstroke | Men | 1 | 7 | Ryosuke Irie |
| 2006 | Pan Pacific Championship | 200m individual medley | Men | 3 | 2 | Ken Takakuwa |
| 2006 | Asian Games | 400m individual medley | Men | 1 | 7 | Hidemasa Sano |
| 2006 | Asian Championship | 50m breaststroke | Men | 3 | 2 | Koichiro Okazaki |
| 2006 | Pan Pacific Championship | 4x100m medley | Men | 2 | 12 | - |
| 2006 | Asian Games | 100m backstroke | Men | 3 | 2 | Masafumi Yamaguchi |
| 2006 | Pan Pacific Championship | 200m breaststroke | Men | 2 | 4 | Kosuke Kitajima |
| 2006 | Asian Championship | 400m individual medley | Men | 3 | 2 | Taishi Okude |
| 2006 | Asian Games | 1500m freestyle | Men | 3 | 2 | Takeshi Matsuda |
| 2006 | Asian Games | 200m butterfly | Men | 3 | 2 | Ryuichi Shibata |
| 2006 | Pan Pacific Championship | 200m butterfly | Men | 2 | 4 | Ryuichi Shibata |
| 2006 | Asian Championship | 100m breaststroke | Men | 3 | 2 | Koichiro Okazaki |
| 2006 | Asian Games | 200m freestyle | Men | 3 | 2 | Daisuke Hosokawa |
| 2006 | Asian Games | 50m backstroke | Men | 1 | 7 | Junya Koga |
| 2006 | Pan Pacific Championship | 100m breaststroke | Men | 3 | 2 | Kosuke Kitajima |
| 2006 | Asian Games | 100m breaststroke | Men | 1 | 7 | Kosuke Kitajima |
| 2006 | Pan Pacific Championship | 1500m freestyle | Men | 3 | 2 | Takeshi Matsuda |
| 2006 | Pan Pacific Championship | 200m backstroke | Men | 3 | 2 | Tomomi Morita |
| 2006 | Asian Games | 200m breaststroke | Men | 2 | 4 | Daisuke Kimura |
| 2006 | Asian Championship | 100m butterfly | Men | 3 | 2 | Shota Takamoto |
| 2006 | Asian Games | 200m butterfly | Men | 2 | 4 | Takeshi Matsuda |
| 2006 | Asian Games | 100m butterfly | Men | 1 | 7 | Takashi Yamamoto |
| 2006 | Asian Games | 400m individual medley | Men | 2 | 4 | Shinya Taniguchi |
| 2006 | Asian Games | 100m freestyle | Men | 3 | 2 | Daisuke Hosokawa |
| 2006 | Pan Pacific Championship | 100m butterfly | Men | 3 | 2 | Takashi Yamamoto |
| 2006 | Asian Games | 4x100m freestyle | Men | 1 | 21 | - |
| 2006 | Pan Pacific Championship | 100m backstroke | Men | 3 | 2 | Tomomi Morita |
| 2006 | Asian Games | 4x100m medley | Men | 1 | 21 | - |
| 2006 | Asian Championship | 200m butterfly | Men | 3 | 2 | Shota Takamoto |
| 2006 | Asian Games | 50m freestyle | Men | 2 | 4 | Makoto Ito |
| 2006 | Asian Games | 200m breaststroke | Men | 1 | 7 | Kosuke Kitajima |
| 2006 | Asian Championship | 100m breaststroke | Men | 2 | 4 | Yuta Suenaga |
| 2006 | Asian Championship | 400m freestyle | Men | 3 | 2 | Taishi Okude |
| 2005 | World Championship | 50m breaststroke | Men | 3 | 3 | Kosuke Kitajima |
| 2005 | World Championship | 4x100m medley | Men | 3 | 9 | - |
| 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 |
| 2004 | Olympic Games | 200m breaststroke | Men | 1 | 30 | Kosuke Kitajima |
| 2004 | Olympic Games | 100m backstroke | Men | 3 | 6 | Tomomi Morita |
| 2004 | Olympic Games | 100m breaststroke | Men | 1 | 30 | Kosuke Kitajima |
| 2004 | Olympic Games | 200m butterfly | Men | 2 | 18 | Takashi Yamamoto |
| 2004 | Olympic Games | 4x100m medley | Men | 3 | 18 | - |
| 2003 | World Championship | 200m butterfly | Men | 2 | 6 | Takashi Yamamoto |
| 2003 | World Championship | 4x100m medley | Men | 3 | 9 | - |
| 2003 | World Championship | 200m breaststroke | Men | 1 | 10 | Kosuke Kitajima |
| 2003 | World Championship | 100m breaststroke | Men | 1 | 10 | Kosuke Kitajima |
| 2002 | Asian Games | 200m breaststroke | Men | 1 | 7 | Kosuke Kitajima |
| 2002 | Asian Games | 4x100m freestyle | Men | 2 | 12 | - |
| 2002 | Pan Pacific Championship | 400m individual medley | Men | 3 | 2 | Takahiro Mori |
| 2002 | World Championship 25m | 100m breaststroke | Men | 2 | 2 | Kosuke Kitajima |
| 2002 | Asian Games | 100m butterfly | Men | 2 | 4 | Kohei Kawamoto |
| 2002 | Asian Games | 200m individual medley | Men | 2 | 4 | Jiro Miki |
| 2002 | Asian Games | 4x200m freestyle | Men | 1 | 21 | - |
| 2002 | Asian Games | 200m backstroke | Men | 2 | 4 | Takashi Nakano |
| 2002 | Asian Games | 200m backstroke | Men | 3 | 2 | Naoya Sonoda |
| 2002 | Asian Games | 200m individual medley | Men | 1 | 7 | Takahiro Mori |
| 2002 | Pan Pacific Championship | 100m breaststroke | Men | 1 | 7 | Kosuke Kitajima |
| 2002 | Pan Pacific Championship | 200m butterfly | Men | 3 | 2 | Takashi Yamamoto |
| 2002 | Asian Games | 100m backstroke | Men | 1 | 7 | Atsushi Nishikori |
| 2002 | Pan Pacific Championship | 200m individual medley | Men | 2 | 4 | Takahiro Mori |
| 2002 | Asian Games | 50m freestyle | Men | 3 | 2 | Issei Nakanishi |
| 2002 | Asian Games | 100m backstroke | Men | 3 | 2 | Tomomi Morita |
| 2002 | Asian Games | 200m butterfly | Men | 3 | 2 | Takeshi Matsuda |
| 2002 | Asian Games | 100m breaststroke | Men | 3 | 2 | Yoshihisa Yamaguchi |
| 2002 | Asian Games | 200m freestyle | Men | 3 | 2 | Yosuke Ichikawa |
| 2002 | Asian Games | 100m breaststroke | Men | 1 | 7 | Kosuke Kitajima |
| 2002 | Asian Games | 200m freestyle | Men | 2 | 4 | Yoshihiro Okumura |
| 2002 | Asian Games | 200m breaststroke | Men | 2 | 4 | Daisuke Kimura |
| 2002 | Asian Games | 400m freestyle | Men | 1 | 7 | Shunichi Fujita |
| 2002 | Asian Games | 200m butterfly | Men | 2 | 4 | Takashi Yamamoto |
| 2002 | Asian Games | 100m butterfly | Men | 1 | 7 | Takashi Yamamoto |
| 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 | 100m freestyle | Men | 3 | 2 | Daisuke Hosokawa |
| 2002 | Pan Pacific Championship | 100m backstroke | Men | 3 | 2 | Tomomi Morita |
| 2002 | Pan Pacific Championship | 200m breaststroke | Men | 3 | 2 | Daisuke Kimura |
| 2002 | Asian Games | 4x100m medley | Men | 1 | 21 | - |
| 2001 | World Championship | 200m breaststroke | Men | 3 | 3 | Kosuke Kitajima |
| 2001 | World Championship | 50m freestyle | Men | 3 | 3 | Tomohiro Yamanoi |
| 1999 | World Championship 25m | 200m butterfly | Men | 2 | 2 | Takashi Yamamoto |
| 1999 | Pan Pacific Championship | 4x100m medley | Men | 3 | 6 | - |
| 1999 | Pan Pacific Championship | 200m butterfly | Men | 2 | 4 | Takashi Yamamoto |
| 1999 | Pan Pacific Championship | 100m butterfly | Men | 3 | 2 | Takashi Yamamoto |
| 1998 | Asian Games | 200m freestyle | Men | 1 | 7 | Yosuke Ichikawa |
| 1998 | Asian Games | 1500m freestyle | Men | 1 | 7 | Masato Hirano |
| 1998 | Asian Games | 100m butterfly | Men | 1 | 7 | Takashi Yamamoto |
| 1998 | Asian Games | 200m butterfly | Men | 1 | 7 | Takashi Yamamoto |
| 1998 | Asian Games | 50m freestyle | Men | 2 | 4 | Tomohiro Yamanoi |
| 1998 | Asian Games | 4x100m medley | Men | 1 | 21 | - |
| 1998 | Asian Games | 100m freestyle | Men | 2 | 4 | Shusuke Ito |
| 1998 | Asian Games | 400m freestyle | Men | 2 | 4 | Masato Hirano |
| 1998 | Asian Games | 100m breaststroke | Men | 2 | 4 | Akira Hayashi |
| 1998 | Asian Games | 400m individual medley | Men | 1 | 7 | Takahiro Mori |
| 1998 | Asian Games | 200m breaststroke | Men | 3 | 2 | Yoshinobu Miyazaki |
| 1998 | Asian Games | 200m individual medley | Men | 2 | 4 | Jo Yoshimi |
| 1998 | Asian Games | 4x200m freestyle | Men | 1 | 21 | - |
| 1998 | Asian Games | 50m freestyle | Men | 3 | 2 | Hirosuke Hamano |
| 1998 | Asian Games | 4x100m freestyle | Men | 1 | 21 | - |
| 1998 | Asian Games | 200m freestyle | Men | 3 | 2 | Shusuke Ito |
| 1998 | Asian Games | 100m freestyle | Men | 1 | 7 | Shusuke Ito |
| 1997 | Pan Pacific Championship | 200m breaststroke | Men | 2 | 4 | Yoshiaki Okita |
| 1995 | Pan Pacific Championship | 4x100m medley | Men | 3 | 6 | - |
| 1995 | Pan Pacific Championship | 200m backstroke | Men | 3 | 2 | Ryuji Horii |
| 1995 | Pan Pacific Championship | 200m breaststroke | Men | 1 | 7 | Akira Hayashi |
| 1994 | Asian Games | 200m freestyle | Men | 2 | 4 | Kazunori Hikida |
| 1994 | Asian Games | 200m breaststroke | Men | 2 | 4 | Akira Hayashi |
| 1994 | Asian Games | 200m butterfly | Men | 2 | 4 | Mitsuharu Takane |
| 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 | 100m freestyle | Men | 1 | 7 | Yukihiro Matsushita |
| 1994 | Asian Games | 1500m freestyle | Men | 2 | 4 | Masato Hirano |
| 1994 | Asian Games | 200m freestyle | Men | 1 | 7 | Taihei Maeda |
| 1994 | Asian Games | 400m freestyle | Men | 3 | 2 | Masayuki Fujimoto |
| 1994 | Asian Games | 100m butterfly | Men | 3 | 2 | Mitsuharu Takane |
| 1994 | Asian Games | 200m individual medley | Men | 3 | 2 | Tatsuya Kinugasa |
| 1994 | Asian Games | 4x100m medley | Men | 1 | 21 | - |
| 1994 | Asian Games | 100m butterfly | Men | 2 | 4 | Hajime Itoi |
| 1994 | Asian Games | 200m backstroke | Men | 2 | 4 | Hajime Itoi |
| 1994 | Asian Games | 200m backstroke | Men | 3 | 2 | Ryuji Horii |
| 1994 | Asian Games | 100m backstroke | Men | 1 | 7 | Hajime Itoi |
| 1994 | Asian Games | 100m backstroke | Men | 2 | 4 | Eiji Komine |
| 1994 | Asian Games | 200m butterfly | Men | 3 | 2 | Osamu Mihara |
| 1994 | Asian Games | 200m individual medley | Men | 2 | 4 | Takahiro Fujimoto |
| 1994 | Asian Games | 4x200m freestyle | Men | 1 | 21 | - |
| 1994 | Asian Games | 100m breaststroke | Men | 1 | 7 | Akira Hayashi |
| 1993 | Pan Pacific Championship | 200m backstroke | Men | 3 | 2 | Hajime Itoi |
| 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 butterfly | Men | 3 | 2 | Mitsuharu Takane |
| 1993 | Pan Pacific Championship | 4x100m medley | Men | 3 | 6 | - |
| 1991 | Pan Pacific Championship | 200m backstroke | Men | 3 | 2 | Hajime Itoi |
| 1991 | Pan Pacific Championship | 100m breaststroke | Men | 3 | 2 | Akira Hayashi |
| 1991 | Pan Pacific Championship | 200m breaststroke | Men | 2 | 4 | Hiroshi Fujieda |
| 1991 | Pan Pacific Championship | 200m butterfly | Men | 3 | 2 | Keiichi Kawanaka |
| 1990 | Asian Games | 100m backstroke | Men | 2 | 4 | Hajime Itoi |
| 1990 | Asian Games | 400m freestyle | Men | 1 | 7 | Tomohiro Noguchi |
| 1990 | Asian Games | 200m individual medley | Men | 2 | 4 | Shuichi Nakamura |
| 1990 | Asian Games | 4x100m medley | Men | 2 | 12 | - |
| 1990 | Asian Games | 4x200m freestyle | Men | 1 | 21 | - |
| 1990 | Asian Games | 1500m freestyle | Men | 1 | 7 | Masayuki Fujimoto |
| 1990 | Asian Games | 200m freestyle | Men | 2 | 4 | Tomohiro Noguchi |
| 1990 | Asian Games | 200m breaststroke | Men | 2 | 4 | Nobuyuki Kawaguchi |
| 1990 | Asian Games | 200m butterfly | Men | 2 | 4 | Tomohiro Miyoshi |
| 1990 | Asian Games | 400m individual medley | Men | 2 | 4 | Shuichi Nakamura |
| 1990 | Asian Games | 200m breaststroke | Men | 1 | 7 | Kenji Watanabe |
| 1990 | Asian Games | 200m butterfly | Men | 1 | 7 | Kunio Sugimoto |
| 1990 | Asian Games | 4x100m freestyle | Men | 2 | 12 | - |
| 1990 | Asian Games | 400m freestyle | Men | 2 | 4 | Takafumi Asahara |
| 1990 | Asian Games | 1500m freestyle | Men | 3 | 2 | Masashi Kato |
| 1990 | Asian Games | 100m breaststroke | Men | 2 | 4 | Kenji Watanabe |
| 1990 | Asian Games | 100m butterfly | Men | 3 | 2 | Tomohiro Miyoshi |
| 1990 | Asian Games | 200m individual medley | Men | 1 | 7 | Takahiro Fujimoto |
| 1990 | Asian Games | 400m individual medley | Men | 1 | 7 | Takahiro Fujimoto |
| 1990 | Asian Games | 100m backstroke | Men | 3 | 2 | Keita Soraoka |
| 1990 | Asian Games | 100m butterfly | Men | 2 | 4 | Kunio Sugimoto |
| 1990 | Asian Games | 100m breaststroke | Men | 3 | 2 | Nobuyuki Kawaguchi |
| 1990 | Asian Games | 200m backstroke | Men | 2 | 4 | Keita Soraoka |
| 1990 | Asian Games | 200m backstroke | Men | 3 | 2 | Hajime Itoi |
| 1988 | Olympic Games | 100m backstroke | Men | 1 | 30 | Daichi Suzuki |
| 1987 | Pan Pacific Championship | 100m backstroke | Men | 2 | 4 | Daichi Suzuki |
| 1986 | Asian Games | 400m individual medley | Men | 1 | 7 | Naritoshi Matsuda |
| 1986 | Asian Games | 200m butterfly | Men | 3 | 2 | Yukinori Tanaka |
| 1986 | Asian Games | 100m breaststroke | Men | 3 | 2 | Kenji Watanabe |
| 1986 | Asian Games | 200m backstroke | Men | 3 | 2 | Shigemori Maruyama |
| 1986 | Asian Games | 100m backstroke | Men | 2 | 4 | Shigemori Maruyama |
| 1986 | Asian Games | 100m butterfly | Men | 1 | 7 | Hiroshi Miura |
| 1986 | Asian Games | 200m backstroke | Men | 1 | 7 | Kazuya Ikeda |
| 1986 | Asian Games | 4x200m freestyle | Men | 1 | 21 | - |
| 1986 | Asian Games | 100m freestyle | Men | 1 | 7 | Katsunori Fujiwara |
| 1986 | Asian Games | 1500m freestyle | Men | 2 | 4 | Shigeo Ogata |
| 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 | 3 | 2 | Satoshi Takeda |
| 1986 | Asian Games | 200m breaststroke | Men | 2 | 4 | Naritoshi Matsuda |
| 1986 | Asian Games | 400m individual medley | Men | 2 | 4 | Satoshi Takeda |
| 1986 | Asian Games | 200m breaststroke | Men | 1 | 7 | Kenji Watanabe |
| 1986 | Asian Games | 200m butterfly | Men | 1 | 7 | Hiroshi Sato |
| 1986 | Asian Games | 4x100m freestyle | Men | 2 | 12 | - |
| 1986 | Asian Games | 4x100m medley | Men | 1 | 21 | - |
| 1986 | Asian Games | 400m freestyle | Men | 2 | 4 | Shigeo Ogata |
| 1986 | Asian Games | 100m breaststroke | Men | 2 | 4 | Hisashi Fuwa |
| 1986 | Asian Games | 100m butterfly | Men | 3 | 2 | Hiroshi Sato |
| 1986 | Asian Games | 200m individual medley | Men | 1 | 7 | Naritoshi Matsuda |
| 1986 | Asian Games | 100m backstroke | Men | 1 | 7 | Daichi Suzuki |
| 1982 | Asian Games | 200m breaststroke | Men | 1 | 7 | Naritoshi Matsuda |
| 1982 | Asian Games | 200m butterfly | Men | 1 | 7 | Taihei Saka |
| 1982 | Asian Games | 4x100m freestyle | Men | 2 | 12 | - |
| 1982 | Asian Games | 4x100m medley | Men | 1 | 21 | - |
| 1982 | Asian Games | 100m breaststroke | Men | 2 | 4 | Shigehiro Takahashi |
| 1982 | Asian Games | 100m backstroke | Men | 1 | 7 | Kenji Ikeda |
| 1982 | Asian Games | 400m individual medley | Men | 1 | 7 | Keiichi Ohata |
| 1982 | Asian Games | 400m freestyle | Men | 1 | 7 | Ikuhiro Terashita |
| 1982 | Asian Games | 200m butterfly | Men | 3 | 2 | Masakazu Hirata |
| 1982 | Asian Games | 400m individual medley | Men | 3 | 2 | Shinji Ito |
| 1982 | Asian Games | 200m individual medley | Men | 2 | 4 | Keiichi Ohata |
| 1982 | Asian Games | 100m backstroke | Men | 2 | 4 | Hidetoshi Takahashi |
| 1982 | Asian Games | 1500m freestyle | Men | 1 | 7 | Kimihiro Anzai |
| 1982 | Asian Games | 100m butterfly | Men | 1 | 7 | Taihei Saka |
| 1982 | Asian Games | 200m backstroke | Men | 1 | 7 | Hidetoshi Takahashi |
| 1982 | Asian Games | 4x200m freestyle | Men | 1 | 21 | - |
| 1982 | Asian Games | 1500m freestyle | Men | 2 | 4 | Keisuke Okuno |
| 1982 | Asian Games | 200m breaststroke | Men | 3 | 2 | Shigehiro Takahashi |
| 1982 | Asian Games | 200m individual medley | Men | 3 | 2 | Shinji Ito |
| 1978 | Asian Games | 200m backstroke | Men | 1 | 7 | Tsuyoshi Takahashi |
| 1978 | Asian Games | 4x200m freestyle | Men | 1 | 21 | - |
| 1978 | Asian Games | 1500m freestyle | Men | 2 | 4 | Takehiko Kawakami |
| 1978 | Asian Games | 400m freestyle | Men | 2 | 4 | Kazuhiko Yoshihara |
| 1978 | Asian Games | 200m freestyle | Men | 3 | 2 | Hiroshi Sakamoto |
| 1978 | Asian Games | 200m individual medley | Men | 1 | 7 | Tsuyoshi Yanagidate |
| 1978 | Asian Games | 100m breaststroke | Men | 1 | 7 | Shigehiro Takahashi |
| 1978 | Asian Games | 200m breaststroke | Men | 1 | 7 | Shigehiro Takahashi |
| 1978 | Asian Games | 200m butterfly | Men | 1 | 7 | Shinsuke Kayama |
| 1978 | Asian Games | 4x100m medley | Men | 1 | 21 | - |
| 1978 | Asian Games | 100m breaststroke | Men | 2 | 4 | Hiroshi Kabatani |
| 1978 | Asian Games | 4x100m freestyle | Men | 1 | 21 | - |
| 1978 | Asian Games | 200m backstroke | Men | 3 | 2 | Kenji Ikeda |
| 1978 | Asian Games | 100m backstroke | Men | 1 | 7 | Kenji Ikeda |
| 1978 | Asian Games | 400m individual medley | Men | 1 | 7 | Kozo Tatsumi |
| 1978 | Asian Games | 400m freestyle | Men | 1 | 7 | Shuji Tsukasaki |
| 1978 | Asian Games | 200m individual medley | Men | 2 | 4 | Kozo Tatsumi |
| 1978 | Asian Games | 100m freestyle | Men | 1 | 7 | Tsuyoshi Yanagidate |
| 1978 | Asian Games | 100m backstroke | Men | 2 | 4 | Tsuyoshi Takahashi |
| 1978 | Asian Games | 1500m freestyle | Men | 1 | 7 | Shuji Tsukasaki |
| 1978 | Asian Games | 200m breaststroke | Men | 2 | 4 | Hiroshi Kabatani |
| 1978 | Asian Games | 400m individual medley | Men | 2 | 4 | Tsuyoshi Yanagidate |
| 1978 | Asian Games | 100m butterfly | Men | 1 | 7 | Shinsuke Kayama |
| 1975 | World Championship | 100m breaststroke | Men | 2 | 6 | Nobutaka Taguchi |
| 1974 | Asian Games | 100m backstroke | Men | 3 | 2 | Toshimitsu Yamamoto |
| 1974 | Asian Games | 200m breaststroke | Men | 3 | 2 | Kenichi Ueda |
| 1974 | Asian Games | 100m freestyle | Men | 3 | 2 | Akira Iida |
| 1974 | Asian Games | 100m butterfly | Men | 3 | 2 | Yasuhiro Komazaki |
| 1974 | Asian Games | 400m individual medley | Men | 2 | 4 | Jiro Sasaki |
| 1974 | Asian Games | 100m butterfly | Men | 1 | 7 | Hideaki Hara |
| 1974 | Asian Games | 200m backstroke | Men | 1 | 7 | Tadashi Honda |
| 1974 | Asian Games | 4x200m freestyle | Men | 1 | 21 | - |
| 1974 | Asian Games | 1500m freestyle | Men | 2 | 4 | Shuji Ono |
| 1974 | Asian Games | 400m freestyle | Men | 2 | 4 | Shuji Ono |
| 1974 | Asian Games | 100m breaststroke | Men | 3 | 2 | Kenichi Ueda |
| 1974 | Asian Games | 200m individual medley | Men | 1 | 7 | Jiro Sasaki |
| 1974 | Asian Games | 100m breaststroke | Men | 1 | 7 | Nobutaka Taguchi |
| 1974 | Asian Games | 200m breaststroke | Men | 1 | 7 | Nobutaka Taguchi |
| 1974 | Asian Games | 200m butterfly | Men | 1 | 7 | Yasuhiro Komazaki |
| 1974 | Asian Games | 400m freestyle | Men | 3 | 2 | Kaname Sakamoto |
| 1974 | Asian Games | 200m butterfly | Men | 2 | 4 | Hideaki Hara |
| 1974 | Asian Games | 4x100m medley | Men | 1 | 21 | - |
| 1974 | Asian Games | 4x100m freestyle | Men | 1 | 21 | - |
| 1974 | Asian Games | 200m backstroke | Men | 3 | 2 | Toshimitsu Yamamoto |
| 1974 | Asian Games | 100m backstroke | Men | 1 | 7 | Tadashi Honda |
| 1974 | Asian Games | 200m freestyle | Men | 1 | 7 | Yukio Horiuchi |
| 1974 | Asian Games | 400m individual medley | Men | 1 | 7 | Tsuyoshi Yanagidate |
| 1974 | Asian Games | 200m individual medley | Men | 2 | 4 | Tsuyoshi Yanagidate |
| 1973 | World Championship | 100m breaststroke | Men | 3 | 3 | Nobutaka Taguchi |
| 1973 | World Championship | 200m breaststroke | Men | 3 | 3 | Nobutaka Taguchi |
| 1972 | Olympic Games | 200m breaststroke | Men | 3 | 6 | Nobutaka Taguchi |
| 1972 | Olympic Games | 100m breaststroke | Men | 1 | 30 | Nobutaka Taguchi |
| 1970 | Asian Games | 4x100m freestyle | Men | 1 | 21 | - |
| 1970 | Asian Games | 100m freestyle | Men | 1 | 7 | Shojiro Sawa |
| 1970 | Asian Games | 100m backstroke | Men | 1 | 7 | Tadashi Honda |
| 1970 | Asian Games | 200m freestyle | Men | 1 | 7 | Kunihiro Iwasaki |
| 1970 | Asian Games | 100m butterfly | Men | 2 | 4 | Satoshi Maruya |
| 1970 | Asian Games | 400m individual medley | Men | 1 | 7 | Toru Udo |
| 1970 | Asian Games | 100m backstroke | Men | 2 | 4 | Koji Hoshino |
| 1970 | Asian Games | 200m backstroke | Men | 2 | 4 | Koji Hoshino |
| 1970 | Asian Games | 400m individual medley | Men | 2 | 4 | Junhachiro Tsutsumi |
| 1970 | Asian Games | 100m butterfly | Men | 1 | 7 | Yasuhiro Komazaki |
| 1970 | Asian Games | 100m freestyle | Men | 2 | 4 | Kunihiro Iwasaki |
| 1970 | Asian Games | 200m backstroke | Men | 1 | 7 | Tadashi Honda |
| 1970 | Asian Games | 4x200m freestyle | Men | 1 | 21 | - |
| 1970 | Asian Games | 1500m freestyle | Men | 2 | 4 | Akira Iida |
| 1970 | Asian Games | 400m freestyle | Men | 2 | 4 | Akira Iida |
| 1970 | Asian Games | 100m breaststroke | Men | 1 | 7 | Nobutaka Taguchi |
| 1970 | Asian Games | 1500m freestyle | Men | 3 | 2 | Toshinori Murata |
| 1970 | Asian Games | 200m breaststroke | Men | 1 | 7 | Nobutaka Taguchi |
| 1970 | Asian Games | 200m butterfly | Men | 1 | 7 | Yasuhiro Komazaki |
| 1970 | Asian Games | 400m freestyle | Men | 3 | 2 | Toshinori Murata |
| 1970 | Asian Games | 200m freestyle | Men | 2 | 4 | Noboru Waseda |
| 1970 | Asian Games | 200m butterfly | Men | 2 | 4 | Satoshi Maruya |
| 1970 | Asian Games | 4x100m medley | Men | 1 | 21 | - |
| 1966 | Asian Games | 100m breaststroke | Men | 1 | 7 | Kenji Ishikawa |
| 1966 | Asian Games | 200m breaststroke | Men | 1 | 7 | Koichi Yamanami |
| 1966 | Asian Games | 200m butterfly | Men | 1 | 7 | Yasuo Takada |
| 1966 | Asian Games | 1500m freestyle | Men | 1 | 7 | Etsujiro Takase |
| 1966 | Asian Games | 200m butterfly | Men | 2 | 4 | Shinji Yamanouchi |
| 1966 | Asian Games | 200m breaststroke | Men | 2 | 4 | Kenji Ishikawa |
| 1966 | Asian Games | 4x100m medley | Men | 1 | 21 | - |
| 1966 | Asian Games | 100m freestyle | Men | 1 | 7 | Kunihiro Iwasaki |
| 1966 | Asian Games | 100m backstroke | Men | 1 | 7 | Yushiro Hayashi |
| 1966 | Asian Games | 200m freestyle | Men | 1 | 7 | Kunihiro Iwasaki |
| 1966 | Asian Games | 400m individual medley | Men | 1 | 7 | Shigeo Fukushima |
| 1966 | Asian Games | 100m butterfly | Men | 3 | 2 | Yasuo Takada |
| 1966 | Asian Games | 100m backstroke | Men | 2 | 4 | Kishio Tanaka |
| 1966 | Asian Games | 200m backstroke | Men | 2 | 4 | Yushiro Hayashi |
| 1966 | Asian Games | 100m breaststroke | Men | 2 | 4 | Koichi Yamanami |
| 1966 | Asian Games | 100m butterfly | Men | 1 | 7 | Isao Nakajima |
| 1966 | Asian Games | 100m freestyle | Men | 2 | 4 | Teruhiko Kitani |
| 1966 | Asian Games | 200m backstroke | Men | 1 | 7 | Shigeo Fukushima |
| 1966 | Asian Games | 4x200m freestyle | Men | 1 | 21 | - |
| 1966 | Asian Games | 400m freestyle | Men | 1 | 7 | Etsujiro Takase |
| 1966 | Asian Games | 1500m freestyle | Men | 2 | 4 | Katsuji Ito |
| 1964 | Olympic Games | 4x200m freestyle | Men | 3 | 18 | - |
| 1962 | Asian Games | 100m breaststroke | Men | 2 | 4 | Kiyoshi Nakagawa |
| 1962 | Asian Games | 100m butterfly | Men | 1 | 7 | Kenzo Izutsu |
| 1962 | Asian Games | 100m freestyle | Men | 2 | 4 | Tadaharu Goto |
| 1962 | Asian Games | 1500m freestyle | Men | 3 | 2 | Toshiaki Sahara |
| 1962 | Asian Games | 200m backstroke | Men | 1 | 7 | Keisuke Ito |
| 1962 | Asian Games | 400m freestyle | Men | 3 | 2 | Masami Nakabo |
| 1962 | Asian Games | 200m freestyle | Men | 2 | 4 | Tadaharu Goto |
| 1962 | Asian Games | 4x200m freestyle | Men | 1 | 21 | - |
| 1962 | Asian Games | 1500m freestyle | Men | 2 | 4 | Tohachiro Matsuki |
| 1962 | Asian Games | 100m breaststroke | Men | 1 | 7 | Kenji Ishikawa |
| 1962 | Asian Games | 100m butterfly | Men | 2 | 4 | Koji Iwamoto |
| 1962 | Asian Games | 200m breaststroke | Men | 1 | 7 | Kiyoshi Nakagawa |
| 1962 | Asian Games | 200m butterfly | Men | 1 | 7 | Kenzo Izutsu |
| 1962 | Asian Games | 200m butterfly | Men | 2 | 4 | Koji Iwamoto |
| 1962 | Asian Games | 200m breaststroke | Men | 2 | 4 | Kenji Ishikawa |
| 1962 | Asian Games | 4x100m medley | Men | 1 | 21 | - |
| 1962 | Asian Games | 100m freestyle | Men | 1 | 7 | Keigo Shimizu |
| 1962 | Asian Games | 100m backstroke | Men | 1 | 7 | Kazuo Tomita |
| 1962 | Asian Games | 200m freestyle | Men | 1 | 7 | Toshizo Umemoto |
| 1962 | Asian Games | 100m backstroke | Men | 2 | 4 | Keisuke Ito |
| 1962 | Asian Games | 200m backstroke | Men | 2 | 4 | Kazuo Tomita |
| 1962 | Asian Games | 400m freestyle | Men | 2 | 4 | Toshizo Umemoto |
| 1960 | Olympic Games | 200m breaststroke | Men | 2 | 18 | Yoshihiko Osaki |
| 1960 | Olympic Games | 4x100m medley | Men | 3 | 18 | - |
| 1960 | Olympic Games | 4x200m freestyle | Men | 2 | 54 | - |
| 1960 | Olympic Games | 400m freestyle | Men | 2 | 18 | Tsuyoshi Yamanaka |
| 1958 | Asian Games | 100m backstroke | Men | 2 | 4 | Hideo Ninomiya |
| 1958 | Asian Games | 200m backstroke | Men | 2 | 4 | Kazuo Watanabe |
| 1958 | Asian Games | 400m freestyle | Men | 1 | 7 | Tsuyoshi Yamanaka |
| 1958 | Asian Games | 400m freestyle | Men | 2 | 4 | Nagatoshi Maruyama |
| 1958 | Asian Games | 100m breaststroke | Men | 2 | 4 | Akio Sugiyama |
| 1958 | Asian Games | 100m butterfly | Men | 1 | 7 | Takashi Ishimoto |
| 1958 | Asian Games | 200m breaststroke | Men | 3 | 2 | Hajime Waki |
| 1958 | Asian Games | 200m backstroke | Men | 1 | 7 | Kazuo Tomita |
| 1958 | Asian Games | 100m freestyle | Men | 3 | 2 | Shintaro Yokochi |
| 1958 | Asian Games | 200m freestyle | Men | 2 | 4 | Tatsuo Fujimoto |
| 1958 | Asian Games | 4x200m freestyle | Men | 1 | 21 | - |
| 1958 | Asian Games | 1500m freestyle | Men | 1 | 7 | Tsuyoshi Yamanaka |
| 1958 | Asian Games | 1500m freestyle | Men | 2 | 4 | Hiroshi Ishii |
| 1958 | Asian Games | 100m breaststroke | Men | 1 | 7 | Masaru Ota |
| 1958 | Asian Games | 100m butterfly | Men | 2 | 4 | Fumiaki Masunaga |
| 1958 | Asian Games | 200m breaststroke | Men | 1 | 7 | Masaru Furukawa |
| 1958 | Asian Games | 200m butterfly | Men | 1 | 7 | Takashi Ishimoto |
| 1958 | Asian Games | 200m butterfly | Men | 2 | 4 | Koichi Hirakida |
| 1958 | Asian Games | 4x100m medley | Men | 1 | 21 | - |
| 1958 | Asian Games | 100m freestyle | Men | 1 | 7 | Manabu Koga |
| 1958 | Asian Games | 100m backstroke | Men | 1 | 7 | Keiji Hase |
| 1958 | Asian Games | 200m freestyle | Men | 1 | 7 | Makoto Fukui |
| 1956 | Olympic Games | 1500m freestyle | Men | 2 | 18 | Tsuyoshi Yamanaka |
| 1956 | Olympic Games | 200m breaststroke | Men | 2 | 18 | Masahiro Yoshimura |
| 1956 | Olympic Games | 200m breaststroke | Men | 1 | 30 | Masaru Furukawa |
| 1956 | Olympic Games | 400m freestyle | Men | 2 | 18 | Tsuyoshi Yamanaka |
| 1956 | Olympic Games | 200m butterfly | Men | 2 | 18 | Takashi Ishimoto |
| 1954 | Asian Games | 100m freestyle | Men | 1 | 7 | Hiroshi Suzuki |
| 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 | 2 | 4 | Teijiro Tanikawa |
| 1954 | Asian Games | 1500m freestyle | Men | 3 | 2 | Tsutomu Nagashima |
| 1954 | Asian Games | 400m freestyle | Men | 1 | 7 | Yoshihiro Shoji |
| 1954 | Asian Games | 400m freestyle | Men | 2 | 4 | Katsuji Yamashita |
| 1954 | Asian Games | 200m breaststroke | Men | 3 | 2 | Masao Togami |
| 1954 | Asian Games | 4x200m freestyle | Men | 1 | 21 | - |
| 1954 | Asian Games | 1500m freestyle | Men | 1 | 7 | Yukiyoshi Aoki |
| 1954 | Asian Games | 1500m freestyle | Men | 2 | 4 | Shichiro Shintaku |
| 1954 | Asian Games | 200m breaststroke | Men | 2 | 4 | Masaru Furukawa |
| 1954 | Asian Games | 200m breaststroke | Men | 1 | 7 | Mamoru Tanaka |
| 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 | 1500m freestyle | Men | 1 | 30 | Noboru Terada |
| 1936 | Olympic Games | 4x200m freestyle | Men | 1 | 90 | - |
| 1936 | Olympic Games | 100m freestyle | Men | 2 | 18 | Masanori Yusa |
| 1936 | Olympic Games | 100m freestyle | Men | 3 | 6 | Shigeo Arai |
| 1936 | Olympic Games | 100m backstroke | Men | 3 | 6 | Masaji Kiyokawa |
| 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 | 3 | 6 | Shozo Makino |
| 1936 | Olympic Games | 1500m freestyle | Men | 3 | 6 | Shunpei Uto |
| 1936 | Olympic Games | 400m freestyle | Men | 2 | 18 | Shunpei Uto |
| 1932 | Olympic Games | 200m breaststroke | Men | 1 | 30 | Yoshiyuki Tsuruta |
| 1932 | Olympic Games | 400m freestyle | Men | 3 | 6 | Tsutomu Ōyokota |
| 1932 | Olympic Games | 100m backstroke | Men | 2 | 18 | Toshio Irie |
| 1932 | Olympic Games | 1500m freestyle | Men | 1 | 30 | Kusuo Kitamura |
| 1932 | Olympic Games | 4x200m freestyle | Men | 1 | 90 | - |
| 1932 | Olympic Games | 200m breaststroke | Men | 2 | 18 | Reizo Koike |
| 1932 | Olympic Games | 100m freestyle | Men | 2 | 18 | Tatsugo Kawaishi |
| 1932 | Olympic Games | 1500m freestyle | Men | 2 | 18 | Shozo Makino |
| 1932 | Olympic Games | 100m backstroke | Men | 1 | 30 | Masaji Kiyokawa |
| 1932 | Olympic Games | 100m backstroke | Men | 3 | 6 | Kentaro Kawatsu |
| 1932 | Olympic Games | 100m freestyle | Men | 1 | 30 | Yasuji Miyazaki |
| 1928 | Olympic Games | 200m breaststroke | Men | 1 | 30 | Yoshiyuki Tsuruta |
| 1928 | Olympic Games | 4x200m freestyle | Men | 2 | 54 | - |
| 1928 | Olympic Games | 100m freestyle | Men | 3 | 6 | Katsuo Takaishi |
Paris 2026: Records re-written at momentous European Aquatics Championships Paris 2026
As the last ripples flow from an outstanding European Aquatics Championships Paris 2026 its legacy in terms of world and continental swimming can be partly expressed by the list of records broken during the seven-day programme at the Olympic Aquatic Centre.
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