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List of Japanese records in swimming

From Wikipedia, the free encyclopedia

These are the Japanese records in swimming: they are the fastest times ever swum by a swimmer from Japan in recognized events. The records are kept and maintained by the Japan Swimming Federation (JSF). The JSF recognizes records swum in both long course (50m) and short course (25m) pools.

Long course (50 metres)

Men

More information Event, Time ...
Event Time NameClubDateMeetLocation Ref
50 m freestyle 21.64 ASShuya Matsumoto Himawari Network 27 July 2025Shizuoka Championships Fuji, Japan [1]
100 m freestyle 47.83 rTatsuya Murasa Chuo University 4 September 2026Japanese Intercollege Championships Osaka, Japan [2]
200 m freestyle 1:44.54 Tatsuya Murasa  Japan 29 July 2025World Championships Singapore, Singapore [3]
400 m freestyle 3:43.90 Kosuke Hagino Toyo University 12 April 2014Japanese Championships Tokyo, Japan [4]
800 m freestyle 7:47.81 Kazushi Imafuku Hirakata SS 20 March 2026Japanese Championships Tokyo, Japan [5]
1500 m freestyle 14:42.59 Kazushi Imafuku  Japan 15 August 2026Pan Pacific Championships Irvine, United States [6]
50 m backstroke 24.24 ASJunya Koga  Japan 2 Aug 2009World Championships Rome, Italy [7]
100 m backstroke 52.24 rRyosuke Irie Kinki University 5 Sep 2009Japanese University Championships Kumamoto, Japan [8]
200 m backstroke 1:52.51 ASRyosuke Irie  Japan 31 Jul 2009World Championships Rome, Italy [9]
50 m breaststroke 26.65 hTaku Taniguchi  Japan 29 July 2025World Championships Singapore, Singapore [10]
100 m breaststroke 58.54 Shin Ohashi  Japan 13 August 2026Pan Pacific Championships Irvine, United States [11]
200 m breaststroke 2:06.40 Shoma Sato Tokyo SC 7 April 2021Japanese Championships Tokyo, Japan [12]
50 m butterfly 23.06 =Taikan Tanaka Kikkoman 20 March 2025Japanese Championships Tokyo, Japan [13]
50 m butterfly 23.06 h, =Shouon Mitsunaga Chuo University 19 March 2026Japanese Championships Tokyo, Japan [14]
100 m butterfly 50.81 sfNaoki Mizunuma  Japan 23 June 2022World Championships Budapest, Hungary [15]
200 m butterfly 1:52.53 ASDaiya Seto  Japan 18 January 2020Champions Swim Series Beijing, China [16]
200m individual medley 1:55.07 Kosuke Hagino Toyo University 9 April 2016Japanese Championships Tokyo, Japan [17]
400m individual medley 4:05.83 ASTomoyuki Matsushita Toyo University 3 September 2026Japanese Intercollege Championships Osaka, Japan [18]
4×50m freestyle relay 1:27.48
 Japan 3 July 2021 Summer Challenge Meet Sagamihara, Japan [19]
4×100m freestyle relay 3:12.54
 Japan 11 August 2018 Pan Pacific Championships Tokyo, Japan [20]
4×200m freestyle relay 7:02.26
 Japan 31 July 2009 World Championships Rome, Italy [21]
4×50m medley relay 1:36.44
 Japan 7 June 2025 Tokyo Championships Tokyo, Japan
4×100m medley relay 3:29.91
 Japan 1 August 2021 Olympic Games Tokyo, Japan [22]
Close
Legend: # – Record awaiting ratification by Japan Swimming Federation; WR – World record; AS – Asian record;
Records not set in finals: h – heat; sf – semifinal; r – relay 1st leg; rh – relay heat 1st leg; b – B final; † – en route to final mark; so – swim-off; tt – time trial

Women

More information Event, Time ...
Event Time NameClubDateMeetLocation Ref
50 m freestyle 24.21 Rikako Ikee Renaissance Kameido 6 April 2018Japanese Championships Tokyo, Japan [23]
100 m freestyle 52.79 Rikako Ikee Renaissance Kameido 18 November 2018Kosuke Kitajima Cup Tokyo, Japan [24]
200 m freestyle 1:54.85 Rikako Ikee  Japan 9 August 2018Pan Pacific Championships Tokyo, Japan [25]
400 m freestyle 4:05.19 Ai Shibata  Japan 25 March 2007World Championships Melbourne, Australia
800 m freestyle 8:23.11 Ichika Kajimoto Hirakata SS 22 March 2026Japanese Championships Tokyo, Japan [26]
1500 m freestyle 15:58.55 Ai Shibata  Japan 27 March 2007World Championships Melbourne, Australia
50m backstroke 27.51 Aya Terakawa Mizuno 13 April 2013Japanese Championships Niigata, Japan
100m backstroke 58.70 r, ASAya Terakawa  Japan 4 August 2013World Championships Barcelona, Spain [27]
200m backstroke 2:07.13 Reiko Nakamura  Japan 16 Aug 2008Olympic Games Beijing, China
50m breaststroke 30.10 Satomi Suzuki  Japan 8 October 2023Shizuoka Invitational Sprint Championships Shizuoka, Japan [28]
100m breaststroke 1:05.19 Reona Aoki Mizuno 2 March 2022Japanese World Championships Trials Tokyo, Japan [29]
200m breaststroke 2:19.65 ASRie Kaneto Jaked 9 April 2016Japanese Championships Tokyo, Japan [30]
50m butterfly 25.11 Rikako Ikee  Japan 10 June 2018Mare Nostrum Canet-en-Roussillon, France [31]
100m butterfly 56.08 Rikako Ikee  Japan 11 August 2018Pan Pacific Championships Tokyo, Japan [32]
200m butterfly 2:04.69 Natsumi Hoshi Swin Daikyo 5 April 2012Japanese Championships Tokyo, Japan [33]
200m individual medley 2:07.91 Yui Ohashi  Japan 24 July 2017World Championships Budapest, Hungary [34]
400m individual medley 4:30.82 Yui Ohashi Itoman Toshin 8 April 2018Japanese Championships Tokyo, Japan [35]
4×50m freestyle relay 1:39.67
 Japan 4 July 2021 Summer Challenge Meet Sagamihara, Japan [36]
4×100m freestyle relay 3:36.17 h
 Japan 21 July 2019 World Championships Gwangju, South Korea [37]
4×200m freestyle relay 7:48.96
 Japan 10 August 2018 Pan Pacific Championships Tokyo, Japan [38]
4×50m medley relay 1:48.12
 Japan 7 June 2025 Tokyo Championships Tokyo, Japan
4×100m medley relay 3:54.73
 Japan 23 August 2018 Asian Games Jakarta, Indonesia [39]
Close
Legend: # – Record awaiting ratification by Japan Swimming Federation; WR – World record; AS – Asian record;
Records not set in finals: h – heat; sf – semifinal; r – relay 1st leg; rh – relay heat 1st leg; b – B final; † – en route to final mark; so – swim-off; tt – time trial

Mixed relay

More information Event, Time ...
Event Time NameClubDateMeetLocation Ref
4×50 m freestyle relay 1:36.79 not officially ratified
 Japan 19 January 2025 South Australia State Open & MC Championships Adelaide, Australia [40]
4×100 m freestyle relay 3:24.67
 Japan 27 July 2019 World Championships Gwangju, South Korea [41]
4×50 m medley relay 1:47.13 not officially ratified
  • Naoya Shiota
  • Taku Taniguchi
  • Umi Ishizuka
  • Ruka Takezawa
  Japan 19 January 2025 South Australia State Open & MC Championships Adelaide, Australia [42]
4×100 m medley relay 3:40.98
 Japan 9 August 2018 Pan Pacific Championships Tokyo, Japan [43]
Close
Legend: # – Record awaiting ratification by Japan Swimming Federation; WR – World record; AS – Asian record;
Records not set in finals: h – heat; so – swim-off

Short course (25 m)

Men

More information Event, Time ...
Event Time NameClubDateMeetLocation Ref
50 m freestyle 20.95 Kosuke Matsui NUHW 26 October 2019Japanese Championships Tokyo, Japan [44]
100 m freestyle 46.22 rKatsumi Nakamura  Japan 11 December 2018World Championships Hangzhou, China [45]
200 m freestyle 1:41.29 hKatsuhiro Matsumoto  Japan 18 December 2022World Championships Melbourne, Australia [46]
400 m freestyle 3:36.87 Katsuhiro Matsumoto  Japan 15 December 2022World Championships Melbourne, Australia [47]
800 m freestyle 7:33.78 ASShogo Takeda  Japan 17 December 2022World Championships Melbourne, Australia [48]
1500 m freestyle 14:23.26 Kazushi Imafuku Flat SS 29 March 2025National Junior Olympic Cup Spring Championships Tokyo, Japan [49]
50 m backstroke 22.81 sfJunya Koga  Japan 8 December 2016World Championships Windsor, Canada [50]
100 m backstroke 49.65 Masaki Kaneko  Japan 11 August 2017World Cup Eindhoven, Netherlands [51]
200 m backstroke 1:48.25 ASMasaki Kaneko Yuras 17 January 2016Tokyo New Year Championships Tokyo, Japan [52]
50m breaststroke 25.88 Taku Taniguchi MEIGI 11 January 2026JSCA New Year's Festival Championships Hamamatsu, Japan [53]
100m breaststroke 55.77 Yuya Hinomoto Aquatic 16 October 2021Japanese Championships Tokyo, Japan [54]
200m breaststroke 2:00.35 ASDaiya Seto  Japan 16 December 2022World Championships Melbourne, Australia [55]
50m butterfly 22.16 ttHiroto Naito Chukyo University 15 February 2025JSCA Mie Regional Winter Championships Suzuka, Japan [56]
100m butterfly 49.54 =Takeshi Kawamoto Toyota 18 October 2020Japanese Championships Tokyo, Japan [57]
100m butterfly 49.54 =Tomonobu Gomi Miki House 19 October 2025Japanese Championships Tokyo, Japan [58]
200m butterfly 1:46.85 WRTomoru Honda Nihon University 22 October 2022Japanese Championships Tokyo, Japan [59]
100m individual medley 51.29 Daiya Seto  Japan 28 October 2021World Cup Kazan, Russia [60]
200m individual medley 1:50.47 ASKosuke Hagino  Japan 5 December 2014World Championships Doha, Qatar [61]
400m individual medley 3:54.81 WRDaiya Seto Energy Standard 20 December 2019International Swimming League Las Vegas, United States [62]
4×50m freestyle relay 1:23.80 AS
 Japan 15 December 2022 World Championships Melbourne, Australia [63]
4×100m freestyle relay 3:07.79 AS
 Japan 3 December 2014 World Championships Doha, Qatar [64]
4×200m freestyle relay 6:52.04
  • Temma Watanabe
     (1:43.78)
  • Katsuhiro Matsumoto
     (1:40.66)
  • Hidenari Mano
     (1:43.18)
  • Shuya Matsumoto
     (1:44.42)
  Japan 16 December 2022 World Championships Melbourne, Australia [65]
4×50m medley relay 1:31.28 AS
  • Takeshi Kawamoto
     (22.93)
  • Yuya Hinomoto
     (25.64)
  • Yuya Tanaka
     (22.13)
  • Masahiro Kawane
     (20.58)
  Japan 17 December 2022 World Championships Melbourne, Australia [66]
4×100m medley relay 3:21.07 AS
 Japan 16 December 2018 World Championships Hangzhou, China [67]
Close
Legend: # – Record awaiting ratification by Japan Swimming Federation; WR – World record; AS – Asian record;
Records not set in finals: h – heat; sf – semifinal; r – relay 1st leg; rh – relay heat 1st leg; b – B final; † – en route to final mark; so – swim-off; tt – time trial

Women

More information Event, Time ...
Event Time NameClubDateMeetLocation Ref
50 m freestyle 23.95 Rikako Ikee  Japan 21 December 2017Swim Cup Lausanne Lausanne, Switzerland [68]
100 m freestyle 51.62 Rikako Ikee Renaissance Kameido 14 January 2018New Year Championships Tokyo, Japan [69]
200 m freestyle 1:52.64 Rikako Ikee Renaissance Kameido 13 January 2018New Year Championships Tokyo, Japan [70]
400 m freestyle 3:59.41 Chihiro Igarashi  Japan 9 December 2016World Championships Windsor, Canada [71]
800 m freestyle 8:12.98 Miyu Namba  Japan 14 December 2022World Championships Melbourne, Australia [72]
1500 m freestyle 15:44.84 Waka Kobori Central Totsuka 14 February 2021National Junior Olympic Cup Qualifying Meet Yokohama, Japan [73]
50m backstroke 25.95 Mizuki Hirai Tokio Inkarami 18 October 2025Japanese Championships Tokyo, Japan [74]
100m backstroke 55.23 ASShiho Sakai  Japan 15 November 2009World Cup Berlin, Germany [75]
200m backstroke 2:00.18 ASShiho Sakai  Japan 14 November 2009World Cup Berlin, Germany [76]
50m breaststroke 29.57 Reona Aoki Tokyo Frog Kings 9 November 2020International Swimming League Budapest, Hungary [77]
100m breaststroke 1:04.01 Reona Aoki Mizuno 22 October 2022Japanese Championships Tokyo, Japan [78]
200m breaststroke 2:15.76 ASRie Kaneto  Japan 9 October 2016World Cup Doha, Qatar [79]
50m butterfly 24.71 ASRikako Ikee Renaissance Kameido 13 January 2018New Year Championships Tokyo, Japan [80]
100m butterfly 55.10 ASMizuki Hirai ATSC.YW 22 February 2025Sagamihara City Championships Sagamihara, Japan [81]
200m butterfly 2:02.96 Suzuka Hasegawa Tokyo Dome 14 January 2017Tokyo New Year Championships Tokyo, Japan
100m individual medley 57.75 Rikako Ikee Renaissance Kameido 15 November 2017World Cup Tokyo, Japan [82]
200m individual medley 2:03.93 ASYui Ohashi Tokyo Frog Kings 14 November 2020International Swimming League Budapest, Hungary [83]
400m individual medley 4:22.73 ASYui Ohashi Itoman Toshin 10 November 2018World Cup Tokyo, Japan [84]
4×50m freestyle relay 1:37.35
 Japan 16 December 2018 World Championships Hangzhou, China [85]
4×100m freestyle relay 3:31.68
 Japan 11 December 2018 World Championships Hangzhou, China [86]
4×200m freestyle relay 7:41.97
 Japan 10 December 2016 World Championships Windsor, Canada [87]
4×50m medley relay 1:44.90
 Japan 12 December 2018 World Championships Hangzhou, China [88]
4×100m medley relay 3:50.28
 Japan 11 December 2016 World Championships Windsor, Canada [89]
Close
Legend: # – Record awaiting ratification by Japan Swimming Federation; WR – World record; AS – Asian record;
Records not set in finals: h – heat; sf – semifinal; r – relay 1st leg; rh – relay heat 1st leg; b – B final; † – en route to final mark; so – swim-off; tt – time trial

Mixed relay

More information Event, Time ...
Event Time NameClubDateMeetLocation Ref
4×50 m freestyle relay 1:29.51 AS
 Japan 12 December 2018 World Championships Hangzhou, China [90]
4×50 m medley relay 1:37.29 AS
 Japan 11 December 2024 World Championships Budapest, Hungary [91]
4×100 m medley relay 3:37.36 h, AS, not officially ratified
  • Masaki Yura
     (51.23)
  • Taku Taniguchi
     (56.44)
  • Mizuki Hirai
     (56.07)
  • Yume Jinno
     (53.62)
  Japan 14 December 2024 World Championships Budapest, Hungary [92]
Close
Legend: # – Record awaiting ratification by Japan Swimming Federation; AS – Asian record;
Records not set in finals: h – heat; so – swim-off

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