2018 FINA World Swimming Championships (25 m) – Women's 4 × 100 metre medley relay

The women's 4 × 100 metre medley relay competition of the 2018 FINA World Swimming Championships (25 m) was held on 16 December 2018.

Women's 4 × 100 metre medley relay at the 2018 FINA World Swimming Championships (25 m)
Venue	Hangzhou Sports Park Stadium
Dates	16 December (heats and final)
Competitors	73 from 15 nations
Teams	15
Winning time	3:45.58
Medalists
Olivia Smoliga Katie Meili Kelsi Dahlia Mallory Comerford Kathleen Baker Kendyl Stewart Melanie Margalis Lia Neal   United States   Fu Yuanhui Shi Jinglin Zhang Yufei Zhu Menghui Wang Yichun Yang Junxuan   China   Margherita Panziera Martina Carraro Elena Di Liddo Federica Pellegrini Ilaria Bianchi   Italy

Records

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

	Nation	Time	Location	Date
World record	United States	3:45.20	Indianapolis, United States	11 December 2015
Championship record	United States	3:47.89	Windsor, Canada	11 December 2016

Results

Heats

The heats were started at 10:20.

Rank	Heat	Lane	Nation	Swimmers	Time	Notes
1	2	5	United States	Kathleen Baker (56.96) Melanie Margalis (1:04.85) Kendyl Stewart (56.29) Lia Neal (52.63)	3:50.73	Q
2	2	4	China	Fu Yuanhui (57.71) Shi Jinglin (1:05.07) Wang Yichun (56.26) Yang Junxuan (52.54)	3:51.58	Q
3	1	4	Australia	Minna Atherton (57.38) Jessica Hansen (1:05.28) Emily Seebohm (57.51) Ariarne Titmus (52.92)	3:53.09	Q
4	1	3	Italy	Margherita Panziera (57.63) Martina Carraro (1:05.32) Ilaria Bianchi (57.78) Federica Pellegrini (53.16)	3:53.89	Q
5	2	3	Japan	Emi Moronuki (57.44) Kanako Watanabe (1:06.52) Yukina Hirayama (57.81) Tomomi Aoki (53.31)	3:55.08	Q
6	1	5	Russia	Daria Ustinova (58.27) Vitalina Simonova (1:05.46) Daria Kartashova (57.61) Veronika Andrusenko (53.77)	3:55.11	Q
7	1	1	Germany	Laura Riedemann (58.40) Jessica Steiger (1:06.46) Aliena Schmidtke (58.52) Marie Pietruschka (53.92)	3:57.30	Q
8	2	2	Canada	Ingrid Wilm (58.55) Sophie Angus (1:06.46) Haley Black (56.49) Aela Janvier (55.97)	3:57.47	Q
9	1	6	Turkey	Ekaterina Avramova (59.88) Viktoriya Zeynep Güneş (1:07.59) Nida Eliz Üstündağ (58.35) Selen Özbilen (54.66)	4:00.48
10	2	8	Switzerland	Seraina Sturzenegger (1:00.93) Lisa Mamie (1:06.79) Svenja Stoffel (58.47) Alexandra Touretski (54.47)	4:00.66
11	2	7	Slovakia	Karolina Hájková (59.76) Andrea Podmaníková (1:07.54) Tamara Potocká (59.67) Barbora Mikuskova (55.39)	4:02.36
12	2	1	Austria	Caroline Pilhatsch (59.49) Cornelia Pammer (1:07.84) Lena Kreundl (1:00.21) Marlene Kahler (55.29)	4:02.83
13	1	2	New Zealand	Emma Godwin (59.22) Ciara Smith (1:09.14) Vanessa Ouwehand (1:01.82) Paige Flynn (54.20)	4:04.38
14	2	6	Hong Kong	Wong Toto Kwan To (1:00.09) Kan Cheuk Tung Natalie (1:10.17) Chan Kin Lok (1:00.70) Sze Hang Yu (55.07)	4:06.03
15	1	7	Chinese Taipei	Chen Szu-an (1:03.67) Lin Pei-wun (1:10.85) Huang Mei-chien (1:02.93) Wang Wan-chen (58.32)	4:15.77

Final

The final was held at 20:00.

Rank	Lane	Nation	Swimmers	Time	Notes
	4	United States	Olivia Smoliga (55.86) Katie Meili (1:03.52) Kelsi Dahlia (54.89) Mallory Comerford (51.31)	3:45.58	CR
	5	China	Fu Yuanhui (56.86) Shi Jinglin (1:03.97) Zhang Yufei (56.21) Zhu Menghui (51.76)	3:48.80
	6	Italy	Margherita Panziera (58.39) Martina Carraro (1:04.47) Elena Di Liddo (56.41) Federica Pellegrini (52.11)	3:51.38
4	2	Japan	Emi Moronuki (57.32) Kanako Watanabe (1:05.58) Ai Soma (56.27) Tomomi Aoki (52.64)	3:51.81
5	7	Russia	Anastasia Fesikova (57.73) Maria Temnikova (1:06.53) Svetlana Chimrova (56.90) Maria Kameneva (52.57)	3:53.73
6	1	Germany	Laura Riedemann (58.04) Jessica Steiger (1:05.80) Aliena Schmidtke (57.41) Annika Bruhn (52.90)	3:54.15
7	8	Canada	Ingrid Wilm (58.63) Sophie Angus (1:06.23) Haley Black (57.08) Aela Janvier (56.10)	3:58.04
	3	Australia	Minna Atherton (56.91) Jessica Hansen (1:04.08) Emily Seebohm Ariarne Titmus	DSQ