World’s Fastest 400m IM – Women’s Short Course

1. Mireia Belmonte (27.99, 31.39, 33.99, 33.09, 35.81, 36.97, 30.39, 29.31) 4:18.94
2. Katinka Hosszu (27.63, 31.56, 32.82, 32.31, 37.56, 37.87, 30.31, 29.40) 4:19.46
3. Julia Smit 4:21.04 (28.39, 32.21, 33.33, 32.08, 36.65, 36.76, 31.16, 30.46) 4:21.04
4. Summer McIntosh (27.98, 31.73, 33.26, 32.30, 37.62, 38.94, 30.73, 28.93) 4:21.49
5. Yui Ohashi (28.19, 32.05, 33.41, 32.26, 37.72, 38.26, 30.92, 29.92) 4:22.73
6. Kathryn Meaklim (28.84, 32.84, 35.05, 33.84, 36.05, 36.13, 30.73, 29.40) 4:22.88
7. Hannah Miley (29.48, 33.12, 33.54, 33.34, 36.58, 37.20, 30.83, 29.11) 4:23.14
8. Ye Shiwen (29.49, 33.72, 33.89, 33.45, 37.43, 37.32, 29.89, 28.14) 4:23.33

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The chart below compares the World’s fastest 400m IM swimmers. Swimmers and coaches can looks at the individual Splits, Stroke Counts and the first 50m split compared to swimmers 50m PB. All swim data has been collected from our team reviewing race footage where possible. Here is Mireia Belmonte’s 400m IM World Record swim to view.

Here is a list of the Women’s 400IM Long Course.

Women's 400m IM - Short Course
	Mireia Belmonte	Katinka Hosszu	Summer McIntosh	Yui Ohashi	Kathryn Meaklim	Hannah Miley	Ye Shiwen
Height:	5 ft 7 in 170cm	5 ft 9 in 175cm	5 ft 8 in 173cm	5 ft 8 in 173cm	5 ft 9 in 180cm	5 ft 5 in 166cm	5 ft 8 in 172cm
Weight:	132 Ib 60kg	150 Ib 68kg		125 Ib 57kg	158 Ib 72kg	117 Ib 53kg	141 Ib 64kg
Country:	ESP	HUN	CAN	JPN	RSA	GBR	CHN
DOB:	1990-11-10	1989-05-03	2006-08-18	1995-10-18	1989-07-20	1989-08-08	1996-03-01
Meet:	2017 World Cup - Eindhoven	2015 Euro's Champs scm	FINA Swimming World Cup 2022	2018 World Cup - Tokyo	FINA/ARENA Swimming World Cup 2009	2012 SCM World Cup	2012 SCM World Cup
1st 25m Strokes	7
2nd 25m Strokes	9
Split Time:	27.99	27.63	27.98	28.19	28.84	29.48	29.49
50m PB:	27.75	25.64		26.59	28.51	28.13	27.54
Time off 50m PB:	0.24	1.99		1.60	0.33	1.35	1.95
Percentage of 50m PB:	100.865%	107.761%		106.017%	101.157%	104.799%	107.081%
3rd 25m Strokes	10
2nd 50m Split	31.39	31.56	31.73	32.05	32.84	33.12	33.72
4th 25m Strokes	10
Split Time:	59.38	59.19	59.71	1:00.24	1:01.68	1:02.60	1:03.21
5th 25m Strokes
3rd 50m Split	33.99	32.82	33.26	33.41	35.05	33.54	33.89
6th 25m Strokes
Split Time:	1:33.37	1:32.01	1:32.97	1:33.65	1:36.73	1:36.14	1:37.10
7th 25m Strokes	17
4th 50m Split	33.09	32.31	32.30	32.26	33.84	33.34	33.45
8th 25m Strokes
Split Time:	2:06.46	2:04.32	2:05.27	2:05.91	2:10.57	2:09.48	2:10.55
9th 25m Strokes
5th 50m Split	35.81	37.56	37.62	37.72	36.05	36.58	37.43
10th 25m Strokes
Split Time:	2:42.27	2:41.88	2:42.89	2:43.63	2:46.62	2:46.06	2:47.98
11th 25m Strokes	10
6th 50m Split	36.97	37.87	38.94	38.26	36.13	37.20	37.32
12th 25m Strokes	10
Split Time:	3:19.24	3:19.75	3:21.83	3:21.89	3:22.75	3:23.26	3:25.30
13th 25m Strokes	18
7th 50m Split	30.39	30.31	30.73	30.92	30.73	30.83	29.89
14th 25m Strokes	18
Split Time:	3:49.63	3:50.06	3:52.56	3:52.81	3:53.48	3:54.03	3:55.19
15th 25m Strokes	18
8th 50m Split	29.31	29.40	28.93	29.92	29.40	29.11	28.14
Strokes	18
Total Time:	4:18.94	4:19.46	4:21.49	4:22.73	4:22.88	4:23.14	4:23.33

Note: World’s Fastest 400m IM – Women’s Short Course Update April 2023