Japan at the 2017 World Aquatics Championships

Japan competed at the 2017 World Aquatics Championships in Budapest, Hungary from 14 July to 30 July.

Japan at the 2017 World Aquatics Championships
Flag of Japan
World Aquatics code	JPN
National federation	Japan Swimming Federation
Website	www.swim.or.jp
in Budapest, Hungary
Competitors	77 in 5 sports
Medals Ranked 17th	Gold 0 Silver 4 Bronze 5 Total 9
World Aquatics Championships appearances
1973 1975 1978 1982 1986 1991 1994 1998 2001 2003 2005 2007 2009 2011 2013 2015 2017 2019 2022 2023 2024 2025

Medalists

Medal	Name	Sport	Event	Date
Silver	Yui Ohashi	Swimming	Women's 200 m individual medley	July 24
Silver	Kosuke Hagino	Swimming	Men's 200 m individual medley	July 27
Silver	Yasuhiro Koseki	Swimming	Men's 200 m breaststroke	July 28
Silver	Junya Koga	Swimming	Men's 50 m backstroke	July 30
Bronze	Sakiko Akutsu Juka Fukumura Aiko Hayashi Yukiko Inui Minami Kono Kei Marumo Kanami Nakamaki Mai Nakamura Kano Omata Asuka Tasaki	Synchronized swimming	Women's team technical routine	July 18
Bronze	Sakiko Akutsu Juka Fukumura Aiko Hayashi Yukiko Inui Minami Kono Kei Marumo Kanami Nakamaki Mai Nakamura Kano Omata Yuriko Osawa Asuka Tasaki Maiko Yamazaki	Synchronized swimming	Women's free routine combination	July 22
Bronze	Daiya Seto	Swimming	Men's 200 m butterfly	July 26
Bronze	Ippei Watanabe	Swimming	Men's 200 m breaststroke	July 28
Bronze	Daiya Seto	Swimming	Men's 400 m individual medley	July 30

Diving

Main article: Diving at the 2017 World Aquatics Championships

Japan has entered 5 divers (two male and three female).^[1]

Men

Athlete	Event	Preliminaries		Semifinals		Final
		Points	Rank	Points	Rank	Points	Rank
Sho Sakai	3 m springboard	445.65	6 Q	407.80	13	did not advance
Kazuki Murakami	10 m platform	349.70	28	did not advance

Women

Athlete	Event	Preliminaries		Semifinals		Final
		Points	Rank	Points	Rank	Points	Rank
Minami Itahashi	10 m platform	304.00	15 Q	313.70	12 Q	357.85	7
Nana Sasaki		274.80	24	did not advance
Matsuri Arai Nana Sasaki	10 m synchronized platform	280.44	10 Q	—		283.32	10

Mixed

Athlete	Event	Final
		Points	Rank
Minami Itahashi Kazuki Murakami	10 m synchronized platform	307.74	6

Open water swimming

Main article: Open water swimming at the 2017 World Aquatics Championships

Japan has entered six open water swimmers^[2][3]

Athlete	Event	Time	Rank
Yasunari Hirai	Men's 5 km	55:33.3	33
	Men's 10 km	1:54:52.9	40
Yohsuke Miyamoto	Men's 5 km	55:38.0	34
	Men's 25 km	5:11:32.1	15
Taiki Nonaka	Men's 10 km	1:55:14.1	44
	Men's 25 km	5:13:35.5	19
Yumi Kida	Women's 10 km	2:03:06.6	23
	Women's 25 km	5:39:31.5	15
Yukimi Moriyama	Women's 5 km	1:01:14.5	21
	Women's 10 km	2:02:13.3	20
Minami Niikura	Women's 5 km	1:00:55.0	16
Yukimi Moriyama Minami Niikura Yasunari Hirai Yohsuke Miyamoto	Mixed team	55:54.0	9

Swimming

Main article: Swimming at the 2017 World Aquatics Championships

Japanese swimmers have achieved qualifying standards in the following events (up to a maximum of 2 swimmers in each event at the A-standard entry time, and 1 at the B-standard):^[4]

Men

Athlete	Event	Heat		Semifinal		Final
		Time	Rank	Time	Rank	Time	Rank
Naito Ehara	200 m freestyle	1:47.31	15 Q	1:47.36	15	did not advance
Kosuke Hagino	200 m backstroke	1:57.97	12 Q	1:58.72	14	did not advance
	200 m individual medley	1:56.46	1 Q	1:56.04	2 Q	1:56.01
	400 m individual medley	4:14.15	7 Q	—		4:12.65	6
Ryosuke Irie	100 m backstroke	53.54	5 Q	53.02	4 Q	53.03	4
	200 m backstroke	1:57.21	6 Q	1:55.79	6 Q	1:56.35	7
Yuki Kobori	100 m butterfly	52.17	20	did not advance
Junya Koga	50 m backstroke	24.54	1 Q	24.44	2 Q	24.51
Yasuhiro Koseki	50 m breaststroke	27.21 AS	10 Q	27.17 AS	11	did not advance
	100 m breaststroke	59.76	11 Q	59.18	6 Q	59.10	4
	200 m breaststroke	2:10.38	12 Q	2:07.80	4 Q	2:07.29
Katsuhiro Matsumoto	200 m freestyle	1:47.92	27	did not advance
Katsumi Nakamura	50 m freestyle	22.32	23	did not advance
	100 m freestyle	49.10	28	did not advance
Masato Sakai	200 m butterfly	1:55.94	6 Q	1:55.57	7 Q	1:55.04	6
Daiya Seto	200 m butterfly	1:54.89	2 Q	1:54.03	1 Q	1:54.21
	200 m individual medley	1:57.55	4 Q	1:56.92	5 Q	1:56.97	5
	400 m individual medley	4:12.89	4 Q	—		4:09.14
Shinri Shioura	50 m freestyle	22.17	15 Q	22.02	14	did not advance
	100 m freestyle	48.46	=5 Q	48.54	11	did not advance
Ippei Watanabe	100 m breaststroke	1:00.26	22	did not advance
	200 m breaststroke	2:09.30	3 Q	2:07.44	2 Q	2:07.47
Junya Koga Katsuhiro Matsumoto Katsumi Nakamura Shinri Shioura	4×100 m freestyle relay	3:14.82	7 Q	—		3:13.65	5
Tsubasa Amai Naito Ehara Kosuke Hagino Katsuhiro Matsumoto	4×200 m freestyle relay	7:09.66	6 Q	—		7:07.68	5
Ryosuke Irie Yuki Kobori Yasuhiro Koseki Shinri Shioura	4×100 m medley relay	3:31.63	2 Q	—		3:30.19 AS	4

Women

Athlete	Event	Heat		Semifinal		Final
		Time	Rank	Time	Rank	Time	Rank
Reona Aoki	100 m breaststroke	1:07.48	17 q	1:07.43	14	did not advance
	200 m breaststroke	2:25.93	12 Q	2:24.42	10	did not advance
Tomomi Aoki	100 m freestyle	1:59.44	23	did not advance
Suzuka Hasegawa	200 m butterfly	2:09.10	12 Q	2:07.01	4 Q	2:07.43	6
Chihiro Igarashi	200 m freestyle	1:57.67	11 Q	1:57.96	13	did not advance
Rikako Ikee	50 m freestyle	25.04	16 Q	24.94	16	did not advance
	100 m freestyle	54.91	21	did not advance
	50 m butterfly	25.72	3 Q	25.90	13	did not advance
	100 m butterfly	57.45	4 Q	56.89	4 Q	57.08	6
Runa Imai	200 m individual medley	2:11.15	5 Q	2:10.15	7 Q	2:09.99	5
Hiroko Makino	200 m butterfly	2:09.14	15 Q	2:07.95	10	did not advance
Yui Ohashi	200 m individual medley	2:11.44	8 Q	2:10.45	8 Q	2:07.91 NR
	400 m individual medley	4:36.97	7 Q	—		4:34.50	4
Sakiko Shimizu	400 m individual medley	4:36.43	5 Q	—		4:35.62	5
Satomi Suzuki	50 m breaststroke	30.95	14 Q	30.95	13	did not advance
	100 m breaststroke	1:07.20	=10 Q	1:07.08	11	did not advance
	200 m breaststroke	2:26.78	15 Q	2:25.60	12	did not advance
Tomomi Aoki Chihiro Igarashi Rikako Ikee Yui Yamane	4×100 m freestyle relay	3:37.46	7 Q	—		3:38.24	7
Tomomi Aoki Chihiro Igarashi Rikako Ikee Aya Takano	4×200 m freestyle relay	7:53.67	2 Q	—		7:50.43	5

Mixed

Athlete	Event	Heat		Final
		Time	Rank	Time	Rank
Katsuhiro Matsumoto Katsumi Nakamura Tomomi Aoki* Rikako Ikee Shinri Shioura	4×100 m freestyle relay	3:26.91 AS	6 Q	3:24.78 AS	4
Runa Imai Sakiko Shimizu Tsubasa Amai Junya Koga	4×100 m medley relay	3:53.79	10	did not advance

Synchronized swimming

Main article: Synchronized swimming at the 2017 World Aquatics Championships

Japan's synchronized swimming team consisted of 14 athletes (1 male and 13 female).^[5]

Women

Athlete	Event	Preliminaries		Final
		Points	Rank	Points	Rank
Yukiko Inui	Solo technical routine	90.8837	3 Q	91.7490	4
	Solo free routine	91.9667	4 Q	92.0667	4
Yukiko Inui Mai Nakamura Kanami Nakamaki (R)	Duet technical routine	90.1304	4 Q	92.0572	4
Yukiko Inui Kanami Nakamaki Mai Nakamura (R)	Duet free routine	92.6000	4 Q	93.1333	4
Sakiko Akutsu Juka Fukumura Aiko Hayashi (R) Yukiko Inui Minami Kono Kei Marumo Kanami Nakamaki Mai Nakamura Kano Omata Asuka Tasaki (R)	Team technical routine	91.7484	3 Q	93.1590
Sakiko Akutsu Juka Fukumura Aiko Hayashi Yukiko Inui Minami Kono (R) Kei Marumo Kanami Nakamaki Mai Nakamura Kano Omata Asuka Tasaki (R)	Team free routine	92.4667	4 Q	93.1000	4
Sakiko Akutsu Juka Fukumura Aiko Hayashi (R) Yukiko Inui Minami Kono Kei Marumo Kanami Nakamaki Mai Nakamura Kano Omata Yuriko Osawa Asuka Tasaki Maiko Yamazaki (R)	Free routine combination	92.9667	3 Q	93.2000

Mixed

Athlete	Event	Preliminaries		Final
		Points	Rank	Points	Rank
Atsushi Abe Yumi Adachi	Duet technical routine	84.8153	4 Q	86.2679	4
	Duet free routine	86.9333	4 Q	88.0000	4

Legend: (R) = Reserve Athlete

Water polo

Main article: Water polo at the 2017 World Aquatics Championships

Japan qualified both a men's and women's teams.^[6][7]

Men's tournament

Main article: Water polo at the 2017 World Aquatics Championships – Men's tournament

Team roster

• Katsuyuki Tanamura
• Seiya Adachi
• Shuma Kawamoto
• Mitsuaki Shiga
• Takuma Yoshida
• Atsuto Iida
• Yusuke Shimizu (C)
• Mitsuru Takata
• Atsushi Arai
• Kohei Inaba
• Keigo Okawa
• Kenya Araki
• Tomoyoshi Fukushima

Group play

Pos	Team	Pld	W	D	L	GF	GA	GD	Pts	Qualification
1	Croatia	3	3	0	0	38	21	+17	6	Quarterfinals
2	Russia	3	1	0	2	34	32	+2	2[a]	Playoffs
3	Japan	3	1	0	2	29	38	−9	2[a]
4	United States	3	1	0	2	28	38	−10	2[a]

Source: Sportresult
Rules for classification: 1) points; 2) head-to-head points; 3) head-to-head goal difference; 4) head-to-head number of goals scored; 5) better result against higher placed team.
Notes:

1. Russia 2 Pts, +4 GD; Japan 2 Pts, +1 GD; United States 2 Pts, −5 GD

17 July 2017 21:30	Report	Japan	8–15	Russia	Alfréd Hajós National Swimming Stadium, Budapest Referees: Daniel Flahive (AUS), Stanko Ivanovski (MNE)
		Score by quarters: 1–5, 2–3, 2–3, 3–4
		three players 2	Goals	four players 3

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19 July 2017 17:30	Report	United States	7–15	Japan	Alfréd Hajós National Swimming Stadium, Budapest Referees: Daniel Flahive (AUS), Benjamin Mercier (FRA)
		Score by quarters: 2–1, 2–5, 2–4, 1–5
		Dunstan, Hallock 2	Goals	Adachi 7

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21 July 2017 13:30	Report	Japan	6–16	Croatia	Alfréd Hajós National Swimming Stadium, Budapest Referees: Daniel Flahive (AUS), Benjamin Mercier (FRA)
		Score by quarters: 1–5, 3–5, 1–4, 1–2
		Arai 2	Goals	four players 3

Playoffs

23 July 2017 20:30	Report	Greece	14–4	Japan	Alfréd Hajós National Swimming Stadium, Budapest Referees: Frank Ohme (GER), Steven Rotsart (USA)
		Score by quarters: 5–2, 5–0, 2–2, 2–0
		Fountoulis 4	Goals	Adachi 2

9th–12th place semifinals

25 July 2017 12:10	Report	Brazil	7–9	Japan	Alfréd Hajós National Swimming Stadium, Budapest Referees: Diana Dutilh-Dumas (NED), Radosław Koryzna (POL)
		Score by quarters: 1–3, 3–4, 1–1, 2–1
		Coutinho, Freitas 2	Goals	Adachi 3

Ninth place game

27 July 2017 12:00	Report	Japan	11–13	Spain	Alfréd Hajós National Swimming Stadium, Budapest Referees: Stanko Ivanovski (MNE), Viktor Salnichenko (KAZ)
		Score by quarters: 2–1, 4–6, 3–4, 2–2
		Adachi, Okawa 3	Goals	Español 5

Women's tournament

Main article: Water polo at the 2017 World Aquatics Championships – Women's tournament

Team roster

• Miyuu Aoki
• Yumi Arima
• Yuri Kazama
• Shino Magariyama
• Chiaki Sakanoue
• Minori Yamamoto
• Akari Inaba
• Yuki Niizawa
• Kana Hosoya
• Misaki Noro
• Marina Tokumoto
• Kotori Suzuki (C)
• Minami Shioya

Group play

Pos	Team	Pld	W	D	L	GF	GA	GD	Pts	Qualification
1	Hungary (H)	3	3	0	0	54	24	+30	6	Quarterfinals
2	Netherlands	3	2	0	1	45	20	+25	4	Playoffs
3	France	3	1	0	2	16	49	−33	2
4	Japan	3	0	0	3	27	49	−22	0

Source: Sportresult
Rules for classification: 1) points; 2) head-to-head points; 3) head-to-head goal difference; 4) head-to-head number of goals scored; 5) Goal difference.
(H) Hosts

16 July 2017 20:10	Report	Japan	11–20	Hungary	Alfréd Hajós National Swimming Stadium, Budapest Referees: Steven Rotsart (USA), Alessandro Severo (ITA)
		Score by quarters: 1–4, 3–8, 2–5, 5–3
		Arima, Yamamoto 4	Goals	Bujka 5

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18 July 2017 12:10	Report	Japan	8–20	Netherlands	Alfréd Hajós National Swimming Stadium, Budapest Referees: Mikhail Dykman (CAN), Michael Brooks (NZL)
		Score by quarters: 0–7, 5–3, 2–5, 1–5
		Arima 3	Goals	Van der Sloot 6

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20 July 2017 09:30	Report	Japan	8–9	France	Alfréd Hajós National Swimming Stadium, Budapest Referees: Radoslaw Koryzna (POL), Francesc Buch (ESP)
		Score by quarters: 3–3, 0–3, 3–1, 2–2
		Inaba 3	Goals	Millot 4

13th–16th place semifinals

22 July 2017 12:00	Report	Japan	17–8	Kazakhstan	Alfréd Hajós National Swimming Stadium, Budapest Referees: Diego Garibaldi (ARG), Michael Brooks (NZL)
		Score by quarters: 3–1, 2–1, 7–4, 5–2
		Arima, Sakanoue 4	Goals	Mirshina 4

13th place game

24 July 2017 10:50	Report	Brazil	9–11	Japan	Alfréd Hajós National Swimming Stadium, Budapest Referees: Daniel Daners (URU), Dion Willis (RSA)
		Score by quarters: 2–2, 2–6, 2–1, 3–2
		Abla 4	Goals	Sakanoue 4