List of Japanese records in swimming
Women
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; tt – time trial

List of Japanese records in swimming

Section Title: Women
Table Section Text: 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; tt – time trial

Event	Time	Name	Club	Date	Meet	Location	Ref

50m freestyle	24.21	Rikako Ikee	Renaissance Kameido	6 April 2018	Japanese Championships	Tokyo, Japan

100m freestyle	52.79	AS	Rikako Ikee	Renaissance Kameido	18 November 2018	Kosuke Kitajima Cup	Tokyo, Japan

200m freestyle	1:54.85	AS	Rikako Ikee	Japan	9 August 2018	Pan Pacific Championships	Tokyo, Japan

400m freestyle	4:05.19	Ai Shibata	Japan	25 Mar 2007	World Championships	Melbourne, Australia

800m freestyle	8:23.68	Sachiko Yamada	Konami	23 Apr 2004	Japanese Championships	Tokyo, Japan

1500m freestyle	15:58.55	Ai Shibata	Japan	27 Mar 2007	World Championships	Melbourne, Australia

50m backstroke	27.51	Aya Terakawa	Mizuno	13 April 2013	Japanese Championships	Niigata, Japan

100m backstroke	58.70	r, AS	Aya Terakawa	Japan	4 August 2013	World Championships	Barcelona, Spain

200m backstroke	2:07.13	Reiko Nakamura	Japan	16 Aug 2008	Olympic Games	Beijing, China

50m breaststroke	30.64	h	Satomi Suzuki	Miki House	3 April 2018	Japanese Championships	Tokyo, Japan

100m breaststroke	1:05.88	Kanako Watanabe	JSS Tateishi	19 June 2014	Japan Open	Tokyo, Japan

200m breaststroke	2:19.65	AS	Rie Kaneto	Jaked	9 April 2016	Japanese Championships	Tokyo, Japan

50m butterfly	25.11	AS	Rikako Ikee	Japan	10 June 2018	Mare Nostrum	Canet-en-Roussillon, France

100m butterfly	56.08	Rikako Ikee	Japan	11 August 2018	Pan Pacific Championships	Tokyo, Japan

200m butterfly	2:04.69	Natsumi Hoshi	University of Swin	5 April 2012	Japanese Championships	Tokyo, Japan

200m individual medley	2:07.91	Yui Ohashi	Japan	24 July 2017	World Championships	Budapest, Hungary

400m individual medley	4:30.82	Yui Ohashi	Itoman Toshin	8 April 2018	Japanese Championships	Tokyo, Japan

4×50m freestyle relay	1:41.03	(25.52)Yui Yamane (25.06)Rino Hosoda (25.18)Chihiro Igarashi (25.27)Tomomi Aoki	Kanagawa	12 September 2015	National Sports Festival	Wakayama (city), Japan

4×100m freestyle relay	3:36.52	(53.60)Rikako Ikee (54.81)Natsumi Sakai (54.21)Tomomi Aoki (53.90)Chihiro Igarashi	Japan	19 August 2018	Asian Games	Jakarta, Indonesia

4×200m freestyle relay	7:48.96	(1:57.88)Chihiro Igarashi (1:54.69)Rikako Ikee (1:58.29)Rio Shirai (1:58.10)Yui Ohashi	Japan	10 August 2018	Pan Pacific Championships	Tokyo, Japan

4×100m medley relay	3:54.73	(59.42)Natsumi Sakai (1:05.43)Satomi Suzuki (55.80)Rikako Ikee (54.08)Tomomi Aoki	Japan	23 August 2018	Asian Games	Jakarta, Indonesia

Sentence(s)

At the 2008 Olympics, Nakamura set the Japanese record in the 200 backstrokes (2:07.13).

final_sentence: At the 2008 Olympics, Nakamura set the Japanese record in the 200 backstrokes (2:07.13).