2021 FINA World Swimming Championships (25 m) – Women's 4 × 100 metre medley relay

Women's 4 × 100 metre medley relay at the 2021 FINA World Swimming Championships (25 m)
Venue	Etihad Arena
Location	Abu Dhabi, United Arab Emirates
Dates	21 December (heats and final)
Competitors	66 from 13 nations
Teams	13
Winning time	3:46.20 ER
Medalists
Louise Hansson Sophie Hansson Sarah Sjöström Michelle Coleman Hanna Rosvall Emelie Fast   Sweden   Kylie Masse Sydney Pickrem Maggie Mac Neil Kayla Sanchez Katerine Savard Summer McIntosh   Canada   Peng Xuwei Tang Qianting Zhang Yufei Cheng Yujie Wan Letian Yu Yiting Zhu Jiaming   China

The Women's 4 × 100 metre medley relay competition of the 2021 FINA World Swimming Championships (25 m) was held on 21 December 2021.

Records

Prior to the competition, the existing world and championship records were as follows.

World record	United States (USA)	3:44.52	Budapest, Hungary	21 November 2020
Competition record	United States (USA)	3:45.58	Hangzhou, China	16 December 2018

Results

Heats

The heats were started at 10:21.

Rank	Heat	Lane	Nation	Swimmers	Time	Notes
1	1	5	Sweden	Hanna Rosvall (57.86) Emelie Fast (1:05.59) Louise Hansson (56.04) Michelle Coleman (53.18)	3:52.67	Q
2	1	4	Canada	Kylie Masse (56.62) Sydney Pickrem (1:05.46) Katerine Savard (57.41) Summer McIntosh (53.55)	3:53.04	Q
3	2	3	Italy	Silvia Scalia (57.71) Martina Carraro (1:05.66) Ilaria Bianchi (57.39) Costanza Cocconcelli (52.92)	3:53.68	Q
4	2	4	United States	Katharine Berkoff (56.62) Kate Douglass (1:05.06) Torri Huske (58.81) Paige Madden (53.24)	3:53.73	Q
5	1	3	Russian Swimming Federation	Daria Ustinova (59.23) Nika Godun (1:04.46) Daria Klepikova (58.45) Ekaterina Nikonova (53.01)	3:55.15	Q
6	2	6	Netherlands	Maaike de Waard (57.30) Kim Busch (1:08.74) Tessa Giele (58.66) Marrit Steenbergen (51.98)	3:56.68	Q
7	2	2	Switzerland	Nina Kost (59.26) Lisa Mamié (1:05.67) Maria Ugolkova (56.98) Alexandra Touretski (54.88)	3:56.79	Q, NR
8	2	5	China	Wan Letian (57.63) Yu Yiting (1:07.23) Zhu Jiaming (59.39) Cheng Yujie (52.95)	3:57.20	Q
9	1	7	Turkey	Ekaterina Avramova (58.46) Viktoriya Zeynep Güneş (1:06.07) Nida Eliz Üstündağ (59.22) Selen Özbilen (56.65)	4:00.40
10	2	7	South Korea	Kim Seo-yeong (1:00.20) Back Su-yeon (1:07.31) Park Ye-rin (58.32) Jeong So-eun (55.18)	4:01.01
11	1	1	Austria	Caroline Pilhatsch (59.44) Cornelia Pammer (1:09.12) Lena Kreundl (59.24) Lena Opatril (55.16)	4:02.96
12	1	6	Hong Kong	Stephanie Au (59.50) Lam Hoi Kiu (1:09.44) Natalie Kan (59.80) Katii Tang (55.10)	4:03.84
13	2	8	Thailand	Jinjutha Pholjamjumrus (1:02.28) Phiangkhwan Pawapotako (1:10.99) Jenjira Srisaard (59.83) Kornkarnjana Sapianchai (56.09)	4:09.19
	1	2	France		DNS
	2	1	Slovakia

Final

The final was held at 20:06.

Rank	Lane	Nation	Swimmers	Time	Notes
	4	Sweden	Louise Hansson (56.25) Sophie Hansson (1:03.70) Sarah Sjöström (54.65) Michelle Coleman (51.60)	3:46.20	ER
	5	Canada	Kylie Masse (55.76) Sydney Pickrem (1:04.97) Maggie Mac Neil (55.30) Kayla Sanchez (51.33)	3:47.36	NR
	8	China	Peng Xuwei (57.12) Tang Qianting (1:03.25) Zhang Yufei (54.93) Cheng Yujie (52.11)	3:47.41	AS
4	6	United States	Katharine Berkoff (56.02) Emily Escobedo (1:04.99) Claire Curzan (55.61) Abbey Weitzeil (51.06)	3:47.68
5	2	Russian Swimming Federation	Maria Kameneva (56.59) Nika Godun (1:04.53) Svetlana Chimrova (56.18) Ekaterina Nikonova (52.64)	3:49.94	NR
6	3	Italy	Silvia Scalia (57.56) Martina Carraro (1:04.98) Elena Di Liddo (55.93) Silvia Di Pietro (52.56)	3:51.03	NR
7	7	Netherlands	Maaike de Waard (56.64) Kim Busch (1:08.25) Tessa Giele (57.20) Marrit Steenbergen (51.88)	3:53.97	NR
8	1	Switzerland	Nina Kost (58.98) Lisa Mamié (1:05.79) Maria Ugolkova (56.35) Alexandra Touretski (54.72)	3:55.84	NR