4 × 100 metres medley relay

The 4 × 100 metres medley relay is an event in competitive swimming.

Each of four swimmers on a team swims a 100 m leg of the relay, each swimming a different stroke, in the following sequence:

Backstroke (this can only be the first stroke, due to the necessity of starting this leg in the pool rather than by diving in)
Breaststroke
Butterfly
Freestyle (in medley swimming, it must be any stroke not previously swum – most swimmers use the front crawl).

World records are ratified by World Aquatics (formerly FINA). The long course world records (men, women and mixed) are currently held by the US. The current short course world record holders are Neutral Athletes B (men) and the US (women).

The men's and women's events have been contested at the Olympic Games since 1960, while the mixed event has been contested since the 2020 games; the current Olympic champions are China (men) and the US (women and mixed). The men's and women's events have been contested at the World Aquatics Championships since the inaugural championships in 1973, while the mixed event was introduced in 2015; the current world champions (long course) are Neutral Athletes B (men and mixed) and the US (women). The men's and women's events have been contested at the World Aquatics Swimming Championships (25m) since the inaugural championships in 1993, while the mixed event was introduced in 2024; the current world champions (short course) are Neutral Athletes B (men and mixed) and the US (women).

World record progression

Men long course


#	Time		Name	Nationality	Date	Meet	Location	Ref
1	4:39.2		Gustaf Hellsing Lennart Brock Roy Dahl Hakan Westesson	Sweden	22 Feb 1953	-	Helsingborg, Sweden
2	4:32.2		Gilbert Bozon Pierre Dumesnil Maurice Lusien Alex Jany	France	22 Mar 1953	-	Charleroi, Belgium
3	4:31.5		A. Violas Pierre Dumesnil Julian Arene Aldo Eminente	France	1 Apr 1953	-	Troyes, France
4	4:30.8		Gustaf Hellsing Lennart Brock Göran Larsson Per-Olof Östrand	Sweden	17 Apr 1953	-	Lund, Sweden
5	4:27.8		Gustaf Hellsing Lennart Brock Göran Larsson Per-Olof Östrand	Sweden	24 Apr 1953	-	Borås, Sweden
6	4:24.8		Viktor Lopatin Vladimir Minashkin Pyotr Skripchenkov Lev Balandin	Soviet Union	13 May 1953	-	Moscow, Soviet Union
7	4:21.3		Viktor Solovyov Vladimir Minashkin Pyotr Skripchenkov Lev Balandin	Soviet Union	26 Jan 1954	-	Moscow, Soviet Union
8	4:19.0		Viktor Solovyov Vladimir Minashkin Pyotr Skripchenkov Lev Balandin	Soviet Union	24 Feb 1954	-	Stockholm, Sweden	^[1]
9	4:14.8		G. Kuvaldin Vladimir Minashkin Vladimir Strushanov Lev Balandin	Soviet Union	14 Aug 1956	Olympic Trials	Moscow, Soviet Union	^[2]
10	4:17.8		Kazuo Tomita (1:01.2) Masaru Furukawa (-) Takashi Ishimoto (-) Katsuki Ishihara (-)	Japan	7 Sep 1957	All-Japan Student Championships	Tokyo, Japan	^[3]
11	4:17.2		Keiji Hase (1:05.5) Masaru Furukawa (1:13.4) Takashi Ishimoto (1:00.4) Manabu Koga (57.9)	Japan	28 May 1958	Asian Games	Tokyo, Japan	^[4]
12	4:16.7		Keiji Hase (1:05.4) Masaru Furukawa (1:13.4) Takashi Ishimoto (59.6) Manabu Koga (58.3)	Japan	29 Jun 1958	-	Los Angeles, United States	^[5]
13	4:14.2	yd	John Monckton Terry Gathercole Brian Wilkinson John Devitt	Australia	25 Jul 1958	British Empire and Commonwealth Games	Cardiff, United Kingdom	^[6]
14	4:10.4		John Monckton Terry Gathercole Brian Wilkinson John Devitt	Australia	22 Aug 1958	-	Osaka, Japan	^[7]
15	4:09.2		Frank McKinney Chet Jastremski Mike Troy Peter Sintz	United States	24 Jul 1960	-	Toledo, Ohio, United States
16	4:08.2	h	Bob Bennett Paul Hait Dave Gillanders Steve Clark	United States	27 Aug 1960	Olympic Games	Rome, Italy
17	4:05.4		Frank McKinney (1:02.0) Paul Hait (1:10.5) Lance Larson (58.0) Jeff Farrell (54.9)	United States	1 Sep 1960	Olympic Games	Rome, Italy	^[8]^[9]
18	4:03.0		Tom Stock Chet Jastremski Lary Schulhof Peter Sintz	United States	20 Aug 1961	-	Los Angeles, United States
19	4:01.6		Tom Stock Chet Jastremski Fred Schmidt Peter Sintz	United States	12 Aug 1962	-	Cuyahoga Falls, United States
20	4:00.1		Richard McGeagh Bill Craig Walter Richardson Steve Clark	United States	24 Aug 1963	-	Osaka, Japan
21	3:58.4		Thompson Mann (59.6 WR) Bill Craig (1:09.6) Fred Schmidt (56.8) Steve Clark (52.4)	United States	16 Oct 1964	Olympic Games	Tokyo, Japan	^[10]
22	3:57.2		Charlie Hickcox (59.1 WR) Ken Merten Doug Russell Ken Walsh	United States	31 Aug 1967	Universiade	Tokyo, Japan
23	3:56.5		Roland Matthes Egon Henninger Horst-Gunther Gregor Frank Wiegand	East Germany	7 Nov 1967	-	Leipzig, East Germany
24	3:54.9		Charlie Hickcox Don McKenzie Doug Russell Ken Walsh	United States	26 Oct 1968	Olympic Games	Mexico City, Mexico	^[11]
25	3:54.4		Roland Matthes Klaus Katzur Udo Poser Lutz Unger	East Germany	8 Sep 1970	European Championships	Barcelona, Spain
26	3:50.4		Charles Campbell Peter Dahlberg Mark Spitz Jerry Heidenreich	United States	3 Sep 1971	GDRvUSA Duel	Leipzig, East Germany
27	3:48.16		Mike Stamm (57.97) Tom Bruce (1:04.22) Mark Spitz (54.28) Jerry Heidenreich (51.69)	United States	4 Sep 1972	Olympic Games	Munich, West Germany
28	3:47.28		Peter Rocca (57.94) Chris Woo (1:04.46) Joe Bottom (54.30) Jack Babashoff (50.58)	United States	22 Jul 1976	Olympic Games	Montreal, Canada	^[12]
29	3:42.22		John Naber (55.89) John Hencken (1:02.50) Matt Vogel (54.26) Jim Montgomery (49.57)	United States	22 Jul 1976	Olympic Games	Montreal, Canada	^[12]
30	3:40.84		Rick Carey Steve Lundquist Matt Gribble Rowdy Gaines	United States	7 Aug 1982	World Championships	Guayaquil, Ecuador
31	3:40.42		Rick Carey Steve Lundquist Matt Gribble Rowdy Gaines	United States	22 Aug 1983	Pan American Games	Caracas, Venezuela
32	3:39.30		Rick Carey (55.41) Steve Lundquist (1:01.86) Pablo Morales (52.87) Rowdy Gaines (49.16)	United States	4 Aug 1984	Olympic Games	Los Angeles, United States
33	3:38.28		Rick Carey (56.32) John Moffet (1:01.37) Pablo Morales (52.75) Matt Biondi (47.84)	United States	18 Aug 1985	Pan Pacific Championships	Tokyo, Japan	^[13]
34	3:36.93		David Berkoff (54.56) Rick Schroeder (1:01.64) Matt Biondi (52.38) Chris Jacobs (48.35)	United States	25 Sep 1988	Olympic Games	Seoul, South Korea	^[14]
34=	3:36.93		Jeff Rouse (53.86 WR) Nelson Diebel (1:01.45) Pablo Morales (52.83) Jon Olsen (48.79)	United States	31 Jul 1992	Olympic Games	Barcelona, Spain	^[15]
35	3:34.84		Jeff Rouse (53.95) Jeremy Linn (1:00.32) Mark Henderson (52.39) Gary Hall, Jr. (48.18)	United States	26 Jul 1996	Olympic Games	Atlanta, United States
36	3:33.73		Lenny Krayzelburg (53.87) Ed Moses (59.84) Ian Crocker (52.10) Gary Hall, Jr. (47.92)	United States	23 Sep 2000	Olympic Games	Sydney, Australia	^[16]
37	3:33.48		Aaron Peirsol (54.17) Brendan Hansen (1:00.14) Michael Phelps (51.13) Jason Lezak (48.04)	United States	29 Aug 2002	Pan Pacific Championships	Yokohama, Japan
38	3:31.54		Aaron Peirsol (53.71) Brendan Hansen (59.61) Ian Crocker (50.39) Jason Lezak (47.83)	United States	27 Jul 2003	World Championships	Barcelona, Spain	^[17]
39	3:30.68		Aaron Peirsol (53.45 WR) Brendan Hansen (59.37) Ian Crocker (50.28) Jason Lezak (47.58)	United States	21 Aug 2004	Olympic Games	Athens, Greece	^[18]
40	3:29.34		Aaron Peirsol (53.16) Brendan Hansen (59.27) Michael Phelps (50.15) Jason Lezak (46.76)	United States	17 Aug 2008	Olympic Games	Beijing, China	^[19]
41	3:27.28		Aaron Peirsol (52.19) Eric Shanteau (58.57) Michael Phelps (49.72) David Walters (46.80)	United States	2 Aug 2009	World Championships	Rome, Italy
42	3:26.78		Ryan Murphy (52.31) Michael Andrew (58.49) Caeleb Dressel (49.03) Zach Apple (46.95)	United States	1 Aug 2021	Olympic Games	Tokyo, Japan	^[20]

Legend: # – Record awaiting ratification by FINA; yd – set in a pool measured in yards;
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; so – swim-off; tt – time trial

Men short course


#	Time		Name	Nationality	Date	Meet	Location	Ref
1	3:34.86		Mark Tewksbury (52.50 WBT) John Cleveland (-) Tom Ponting (-) Stephen Vandermeulen (-)	Canada	22 Feb 1992	CAN SC Nationals	Winnipeg, Canada
2	3:32.57		Tripp Schwenk (53.24) Seth Van Neerden (59.43) Mark Henderson (52.20) Jon Olsen (47.70)	United States	2 Dec 1993	World SC Championships	Palma de Mallorca, Spain
3	3:30.91		Adrian Radley (52.28) Ryan Mitchell (59.68) Geoff Huegill (51.10) Michael Klim (47.85)	Australia	23 Dec 1996	AUS SC Nationals	Melbourne, Australia
4	3:30.66		Adrian Radley (52.72) Phil Rogers (59.39) Geoff Huegill (51.35) Michael Klim (47.20)	Australia	17 Apr 1997	World SC Championships	Gothenburg, Sweden
5	3:29.88		Matt Welsh (53.34) Phil Rogers (59.47) Michael Klim (50.69) Chris Fydler (46.38)	Australia	4 Apr 1999	World SC Championships	Hong Kong, Hong Kong
6	3:29.00		Aaron Peirsol (52.17) David Denniston (58.56) Peter Marshall (51.93) Jason Lezak (46.34)	United States	7 Apr 2002	World SC Championships	Moscow, Russia	^[21]
7	3:28.12	tt	Matt Welsh (50.95) Jim Piper (59.44) Geoff Huegill (50.61) Ashley Callus (47.12)	Australia	4 Sep 2002	AUS SC Nationals	Melbourne, Australia	^[22]
8	3:25.38		Aaron Peirsol (51.28) Brendan Hansen (57.82) Ian Crocker (48.62) Garrett Weber-Gale (47.66)	United States	25 Mar 2004	NCAA Championships	East Meadow, United States
9	3:25.09		Aaron Peirsol (51.35) Brendan Hansen (57.42) Ian Crocker (49.76) Jason Lezak (46.56)	United States	11 Oct 2004	World SC Championships	Indianapolis, United States	^[23]
10	3:24.29		Stanislav Donets (50.57) Sergey Geybel (57.93) Yevgeny Korotyshkin (49.39) Alexander Sukhorukov (46.40)	Russia	13 Apr 2008	World SC Championships	Manchester, United Kingdom	^[24]
11	3:23.33		Jake Tapp (50.60) Paul Kornfeld (57.18) Joe Bartoch (50.18) Brent Hayden (45.37)	Canada	9 Aug 2009	British Gas SC Grand Prix	Leeds, United Kingdom
12	3:20.71		Nick Thoman (48.94 WR) Mark Gangloff (57.03) Michael Phelps (49.93) Nathan Adrian (44.81)	United States	18 Dec 2009	Duel in the Pool	Manchester, United Kingdom	^[25]
13	3:19.16		Stanislav Donets (49.63) Sergey Geybel (56.43) Yevgeny Korotyshkin (48.35) Danila Izotov (44.75)	Russia	20 Dec 2009	Vladimir Salnikov Swimming Cup	Saint Petersburg, Russia	^[26]
14	3:18.98	=	Isaac Cooper (49.46) Joshua Yong (56.55) Matthew Temple (48.34) Kyle Chalmers (44.63)	Australia	18 Dec 2022	World Championships	Melbourne, Australia	^[27]
14	3:18.98	=	Ryan Murphy (48.96) Nic Fink (54.88) Trenton Julian (49.19) Kieran Smith (45.95)	United States	18 Dec 2022	World Championships	Melbourne, Australia	^[27]
15	3:18.68		Miron Lifintsev (49.31) Kirill Prigoda (55.15) Andrei Minakov (48.80) Egor Kornev (45.42)	Russia	15 December 2024	World Championships	Budapest, Hungary	^[28]^[29]

Legend: # – Record awaiting ratification by FINA;
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; so – swim-off; tt – time trial

Women long course


#	Time		Name	Nationality	Date	Meet	Location	Ref
1	5:10.8		Magda Hunyadfi Klara Killermann Éva Székely Valéria Gyenge	Hungary	24 Jul 1953	-	Budapest, Hungary
2	5:09.2		Magda Hunyadfi Klara Killermann Éva Székely Valéria Gyenge	Hungary	10 Aug 1953	-	Bucharest, Romania
3	5:07.8		Judit Temes Klara Killermann Mária Littomericzky Katalin Szőke	Hungary	3 Aug 1954	-	Budapest, Hungary
4	5:06.2		Marie-Helene Andre Francoise Derommeleere Odette Lusien Josette Arene	France	16 Aug 1954	-	Marseille, France
5	5:02.1		Joke de Korte (1:13.0) Rika Bruins (1:23.4) Mary Kok (1:20.3) Geertje Wielema (1:05.4)	Netherlands	27 Nov 1954	-	Rotterdam, Netherlands	^[30]
6	5:00.1		Jopie van Alphen Rika Bruins Atie Voorbij Hetty Balkenende	Netherlands	17 Jul 1955	-	Paris, France	^[31]
7	4:57.8		Eva Pajor Éva Székely Rypsyma Székely Katalin Szőke	Hungary	3 Sep 1955	-	Budapest, Hungary	^[31]
8	4:54.3		Lenie de Nijs Rita Kroon Atie Voorbij Greetje Kraan	Netherlands	19 Nov 1956	-	Hilversum, Netherlands	^[31]
9	4:53.1		Joke de Korte Ada den Haan Tineke Lagerberg Cocky Gastelaars	Netherlands	8 Dec 1956	-	Zwolle, Netherlands
10	4:57.0	yd	Greetje Kraan Ada den Haan Atie Voorbij Cocky Gastelaars	Netherlands	18 May 1957	GBRvNED International	Blackpool, United Kingdom	^[32]
11	4:54.0	yd	Judy Grinham (1:10.9) Anita Lonsbrough (1:23.3) Christine Gosden (1:14.2) Diana Wilkinson (1:04.6)	Great Britain	25 July 1958	British Empire and Commonwealth Games	Cardiff, United Kingdom	^[33]
12	4:52.9		Lenie de Nijs Ada den Haan Atie Voorbij Cocky Gastelaars	Netherlands	5 Sep 1958	European Championships	Budapest, Hungary	^[34]
13	4:51.5		Ria van Velsen (1:11.7) Ada den Haan Tineke Lagerberg Cocky Gastelaars	Netherlands	26 Jul 1959	NEDvGBR International Meet	Waalwijk, Netherlands	^[35]
14	4:44.6		Carin Cone Ann Bancroft Becky Collins Chris von Saltza	United States	6 Sep 1959	1959 Pan American Games	Chicago, United States	^[36]
15	4:41.1		Lynn Burke Patty Kempner Carolyn Schuler Chris von Saltza	United States	2 Sep 1960	Olympic Games	Rome, Italy
16	4:40.1		Ingrid Schmidt Heidi Pechstein Ute Noack Barbara Gobel	East Germany	23 Aug 1962	European Championships	Leipzig, East Germany	^[37]
17	4:39.1		Maria van Velsen (1:12.2) Klenie Bimolt (1:18.0) Ada Kok (1:05.4) Erica Terpstra (1:03.5)	Netherlands	28 Jun 1964	NEDvGBR International Meet	Groningen (city), Netherlands	^[38]
18	4:38.1		Donna de Varona Claudia Kolb Judy Haroun Lillian Watson	United States	4 Jul 1964	-	Los Altos, California, United States
19	4:34.6		Cathy Ferguson Cynthia Goyette Martha Randall Kathy Ellis	United States	28 Sep 1964	Pre Olympic	Los Angeles, United States
20	4:33.9		Cathy Ferguson Cynthia Goyette Sharon Stouder Kathy Ellis	United States	18 Oct 1964	Olympic Games	Tokyo, Japan
21	4:30.0		Kendis Moore Catie Ball Ellie Daniel Wendy Fordyce	United States	30 Jul 1967	Pan American Games	Winnipeg, Canada
22	4:28.1		Kaye Hall Catie Ball Ellie Daniel Susan Pedersen	United States	14 Sep 1968	Pre Olympic	Colorado Springs, United States
23	4:27.4		Susie Atwood Kim Brecht Alice Jones Cindy Schilling	United States	1 Sep 1970	-	Tokyo, Japan
24	4:27.3		Susie Atwood Claudia Clevenger Ellie Daniel Linda Johnson	United States	11 Sep 1971	URSvUSAvGBR meet	Minsk, Soviet Union
25	4:25.34		Susie Atwood Lynn Vidali Ellie Daniel Jane Barkman	United States	18 Aug 1972	Pre Olympic	Knoxville, United States
26	4:20.75		Melissa Belote Cathy Carr Deena Deardurff Sandy Neilson	United States	3 Sep 1972	Olympic Games	Munich, West Germany
27	4:16.84		Ulrike Richter Renate Vogel Rosemarie Kother Kornelia Ender	East Germany	4 Sep 1973	World Championships	Belgrade, Yugoslavia	^[39]
28	4:13.78		Ulrike Richter Renate Vogel Rosemarie Kother Kornelia Ender	East Germany	24 Aug 1974	European Championships	Vienna, Austria
29	4:13.41		Monika Seltmann Carola Nitschke Andrea Pollack Barbara Krause	East Germany	5 Jun 1976	East German National Championships	Berlin, East Germany	^[40]
30	4:07.95		Ulrike Richter (1:02.23) Hannelore Anke (1:10.15) Andrea Pollack (59.53) Kornelia Ender (56.04)	East Germany	18 Jul 1976	Olympic Games	Montreal, Canada
31	4:06.67		Rica Reinisch (1:01.51 =WR) Ute Geweniger (1:09.46) Andrea Pollack (1:00.14) Caren Metschuck (55.56)	East Germany	20 Jul 1980	Olympic Games	Moscow, Soviet Union
32	4:05.88		Kristin Otto Ute Geweniger Ines Geißler Birgit Meineke	East Germany	6 Aug 1982	World Championships	Guayaquil, Ecuador
33	4:05.79		Ina Kleber Ute Geweniger Ines Geißler Birgit Meineke	East Germany	26 Aug 1983	European Championships	Rome, Italy
34	4:03.69		Ina Kleber (1:00.59 WR) Sylvia Gerasch (1:08.69) Ines Geißler (59.52) Birgit Meineke (54.89)	East Germany	24 Aug 1984	Friendship Games	Moscow, Soviet Union	^[41]
35	4:02.54		Lea Loveless (1:00.82) Anita Nall (1:08.67) Crissy Ahmann-Leighton (58.58) Jenny Thompson (54.47)	United States	30 Jul 1992	Olympic Games	Barcelona, Spain
36	4:01.67		He Cihong (1:00.16 WR) Dai Guohong (1:09.04) Liu Limin (58.66) Le Jingyi (53.81)	China	10 Sep 1994	World Championships	Rome, Italy	^[42]
37	3:58.30		Barbara Bedford (1:01.39) Megan Quann (1:06.29) Jenny Thompson (57.25) Dara Torres (53.37)	United States	23 Sep 2000	Olympic Games	Sydney, Australia	^[43]
38	3:57.32		Giaan Rooney (1:01.18) Leisel Jones (1:06.50) Petria Thomas (56.67) Jodie Henry (52.97)	Australia	21 Aug 2004	Olympic Games	Athens, Greece	^[44]
39	3:56.30		Sophie Edington (1:01.06) Leisel Jones (1:05.51) Jessicah Schipper (56.86) Libby Lenton (52.87)	Australia	21 Mar 2006	Commonwealth Games	Melbourne, Australia	^[45]
40	3:55.74		Emily Seebohm (1:00.79) Leisel Jones (1:04.94) Jessicah Schipper (57.18) Libby Lenton (52.83)	Australia	31 Mar 2007	World Championships	Melbourne, Australia	^[46]
41	3:52.69		Emily Seebohm (59.33) Leisel Jones (1:04.58) Jessicah Schipper (56.25) Libby Trickett (52.53)	Australia	17 Aug 2008	Olympic Games	Beijing, China	^[47]
42	3:52.19		Zhao Jing (58.98) Chen Huijia (1:04.12) Jiao Liuyang (56.28) Li Zhesi (52.81)	China	1 Aug 2009	World Championships	Rome, Italy	^[48]
43	3:52.05		Missy Franklin (58.50) Rebecca Soni (1:04.82) Dana Vollmer (55.48) Allison Schmitt (53.25)	United States	4 Aug 2012	Olympic Games	London, United Kingdom	^[49]
44	3:51.55		Kathleen Baker (58.54) Lilly King (1:04.48) Kelsi Worrell (56.30) Simone Manuel (52.23)	United States	30 Jul 2017	World Championships	Budapest, Hungary	^[50]
44	3:50.40		Regan Smith (57.57 WR) Lilly King (1:04.81) Kelsi Dahlia (56.16) Simone Manuel (51.86)	United States	28 Jul 2019	World Championships	Gwangju, South Korea	^[51]
45	3:49.63		Regan Smith (57.28) Lilly King (1:04.90) Gretchen Walsh (55.03) Torri Huske (52.42)	United States	4 Aug 2024	Olympic Games	Paris, France	^[52]
46	3:49.34		Regan Smith (57.57) Kate Douglass (1:04.27) Gretchen Walsh (54.98) Torri Huske (52.52)	United States	3 Aug 2025	World Championships	Singapore, Singapore	^[53]

Legend: # – Record awaiting ratification by FINA; yd – set in a pool measured in yards;
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; so – swim-off; tt – time trial

Women short course


#	Time	Name	Nationality	Date	Meet	Location	Ref
1	3:57.73	He Cihong (1:00.31) Dai Guohong (1:06.17) Liu Limin (59.06) Le Jingyi (52.19)	China	5 Dec 1993	World SC Championships	Palma de Mallorca, Spain
2	3:57.62	Mai Nakamura (59.27) Masami Tanaka (-) Ayari Aoyama (-) Sumika Minamoto (-)	Japan	4 Apr 1999	World SC Championships	Hong Kong, Hong Kong
3	3:57.46	Courtney Shealy (58.75) Kristy Kowal (1:06.09) Keegan Walkley (59.28) Maritza Correia (53.34)	United States	17 Mar 2000	Women's NCAA Championships	Indianapolis, United States
4	3:55.78	Therese Alshammar (1:00.74) Emma Igelström (1:04.90) Anna-Karin Kammerling (57.12) Johanna Sjöberg (53.02)	Sweden	5 Apr 2002	World SC Championships	Moscow, Russia	^[54]
5	3:54.95	Sophie Edington (59.37) Brooke Hanson (1:05.25) Jessicah Schipper (58.28) Lisbeth Lenton (52.05)	Australia	9 Oct 2004	World SC Championships	Indianapolis, United States	^[55]
6	3:51.84	Tayliah Zimmer (58.54) Jade Edmistone (1:04.95) Jessicah Schipper (56.36) Lisbeth Lenton (51.99)	Australia	7 Apr 2006	World SC Championships	Shanghai, China	^[56]
7	3:51.36	Margaret Hoelzer (58.79) Jessica Hardy (1:03.98) Rachel Komisarz (55.93) Kara Denby (52.66)	United States	11 Apr 2008	World SC Championships	Manchester, United Kingdom	^[57]
8	3:49.45	Katy Murdoch (56.88) Annamay Pierse (1:03.39) Audrey Lacroix (57.29) Victoria Poon (51.89)	Canada	9 Aug 2009	British Gas swimming Grand Prix	Leeds, United Kingdom
9	3:47.97	Margaret Hoelzer (57.47) Jessica Hardy (1:03.58) Dana Vollmer (54.37) Amanda Weir (52.55)	United States	18 Dec 2009	Duel in the Pool	Manchester, United Kingdom
10	3:45.56	Natalie Coughlin (55.97) Rebecca Soni (1:02.91) Dana Vollmer (55.36) Missy Franklin (51.32)	United States	16 Dec 2011	Duel in the Pool	Atlanta, United States	^[58]
11	3:45.20	Courtney Bartholomew (56.08) Katie Meili (1:02.88) Kelsi Worrell (55.01) Simone Manuel (51.23)	United States	11 December 2015	Duel in the Pool	Indianapolis, United States	^[59]
12	3:44.52	Olivia Smoliga (55.60) Lilly King (1:02.40) Kelsi Dahlia (54.79) Erika Brown (51.73)	United States (Cali Condors)	21 November 2020	International Swimming League	Budapest, Hungary	^[60]
13	3:44.35	Claire Curzan (56.47) Lilly King (1:02.88) Torri Huske (54.53) Kate Douglass (50.47)	United States	18 December 2022	World Championships	Melbourne, Australia	^[61]
14	3:40.41	Regan Smith (54.02) Lilly King (1:03.02) Gretchen Walsh (52.84) Kate Douglass (50.53)	United States	15 December 2024	World Championships	Budapest, Hungary	^[62]^[63]

Legend: # – Record awaiting ratification by FINA;
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; so – swim-off; tt – time trial

Mixed long course


#	Time	Name	Nationality	Date	Meet	Location	Ref
1	4:13.47	Allie Day (1:06.61) Mike Hurley (1:09.81) Tanner Kurz (58.63) Haley Lips (58.42)	Indiana University Hoosiers	26 September 2013	IU Fall Frenzy	Bloomington, United States	^[64]^[65]
2	3:48.74	Andrei Shabasov Veronika Popova Andrei Nikolayev Daria Ustinova	St. Petersburg	16 May 2014	Russian Championships	Moscow, Russia	^[66]
3	3:44.02	Christopher Walker-Hebborn (53.68) Adam Peaty (59.30) Jemma Lowe (57.51) Francesca Halsall (53.53)	Great Britain	19 August 2014	European Championships	Berlin, Germany	^[67]
4	3:41.71	Christopher Walker-Hebborn (52.94) Adam Peaty (57.98) Siobhan-Marie O'Connor (57.02) Francesca Halsall (53.77)	Great Britain	5 August 2015	World Championships	Kazan, Russia	^[68]
5	3:40.28	Ryan Murphy (52.34) Kevin Cordes (58.95) Kelsi Worrell (56.17) Mallory Comerford (52.82)	United States	26 July 2017	World Championships	Budapest, Hungary	^[69]
6	3:38.56	Matt Grevers (52.32) Lilly King (1:04.15) Caeleb Dressel (49.92) Simone Manuel (52.17)	United States	26 July 2017	World Championships	Budapest, Hungary	^[70]
7	3:38.41	Xu Jiayu (52.45) Yan Zibei (57.96) Zhang Yufei (55.32) Yang Junxuan (52.68)	China	1 October 2020	Chinese Championships	Qingdao, China	^[71]
8	3:37.58	Kathleen Dawson (58.80) Adam Peaty (56.78) James Guy (50.00) Anna Hopkin (52.00)	Great Britain	31 July 2021	Olympic Games	Tokyo, Japan	^[72]
9	3:37.43	Ryan Murphy (52.08) Nic Fink (58.29) Gretchen Walsh (55.18) Torri Huske (51.88)	United States	3 August 2024	Olympic Games	Paris, France	^[73]

All-time top 10 by country

Men long course

Correct as of August 2025^[74]

Pos	Time	Swimmer	Nationality	Date	Venue	Ref
1	3:26.78	Ryan Murphy (52.31) Michael Andrew (58.49) Caeleb Dressel (49.03) Zach Apple (46.95)	United States	1 August 2021	Tokyo	^[75]
2	3:26.93	Miron Lifintsev (52.44) Kirill Prigoda (57.92) Andrey Minakov (50.17) Egor Kornev (46.40)	Russia	3 August 2025	Singapore	^[76]
3	3:27.01	Xu Jiayu (52.05) Qin Haiyang (57.63) Wang Changhao (50.68) Pan Zhanle (46.65)	China	26 September 2023	Hangzhou	^[77]
4	3:27.51	Luke Greenbank (53.63) Adam Peaty (56.53) James Guy (50.27) Duncan Scott (47.08)	Great Britain	1 August 2021	Tokyo	^[75]
4	3:27.51	Thomas Ceccon (51.93) Nicolò Martinenghi (57.47) Federico Burdisso (50.63) Alessandro Miressi (47.48)	Italy	25 June 2022	Budapest	^[78]
6	3:27.96	Yohann Ndoye-Brouard (52.26) Léon Marchand (58.44) Maxime Grousset (49.27) Yann Le Goff (47.99)	France	3 August 2025	Singapore	^[76]
7	3:28.58	Helge Meeuw (52.27) Hendrik Feldwehr (58.51) Benjamin Starke (50.91) Paul Biedermann (46.89)	Germany	2 August 2009	Rome	^[79]
8	3:28.64	Ashley Delaney (53.10) Brenton Rickard (57.80) Andrew Lauterstein (50.58) Matt Targett (47.16)	Australia	2 August 2009	Rome	^[79]
9	3:29.16	Guilherme Guido (53.78) Henrique Barbosa (58.68) Gabriel Mangabeira (50.48) César Cielo (46.22)	Brazil	2 August 2009	Rome	^[79]
10	3:29.91	Ryosuke Irie (53.05) Ryuya Mura (58.94) Naoki Mizunuma (50.88) Katsumi Nakamura (47.04)	Japan	1 August 2021	Tokyo	^[75]

Men short course

Correct as of September 2025^[80]

Pos	Time	Swimmer	Nationality	Date	Venue	Ref
1	3:18.68	Miron Lifintsev (49.31) Kirill Prigoda (55.15) Andrey Minakov (48.80) Egor Kornev (45.42)	Russia	15 December 2024	Budapest	^[81]
2	3:18.98	Isaac Cooper (49.46) Joshua Yong (56.55) Matthew Temple (48.34) Kyle Chalmers (44.63)	Australia	18 December 2022	Melbourne	^[82]
2	3:18.98	Ryan Murphy (48.96) Nic Fink (54.88) Trenton Julian (49.19) Kieran Smith (45.95)	United States	18 December 2022	Melbourne	^[82]
4	3:19.06	Lorenzo Mora (49.48) Nicolò Martinenghi (55.52) Matteo Rivolta (48.50) Alessandro Miressi (45.56)	Italy	18 December 2022	Melbourne	^[82]
5	3:21.07	Ryosuke Irie (49.95) Yasuhiro Koseki (55.91) Takeshi Kawamoto (49.58) Katsumi Nakamura (45.63)	Japan	16 December 2018	Hangzhou	^[83]
6	3:21.14	Guilherme Guido (50.11) Felipe Franca Silva (56.73) Marcos Macedo (49.63) César Cielo (44.67)	Brazil	7 December 2014	Doha	^[84]
7	3:22.17	Christian Diener (50.01) Marco Koch (56.68) Marius Kusch (48.91) Damian Wierling (46.57)	Germany	16 December 2018	Hangzhou	^[83]
8	3:22.26	Florent Manaudou (50.35) Giacomo Perez-Dortona (57.00) Mehdy Metella (49.07) Clement Mignon (45.84)	France	7 December 2014	Doha	^[85]
9	3:22.78	Chris Walker-Hebborn (50.54) Adam Peaty (56.23) Adam Barrett (49.01) Benjamin Proud (46.97)	Great Britain	7 December 2014	Doha	^[85]
10	3:23.33	Jake Tapp (50.60) Paul Kornfeld (57.18) Joe Bartoch (50.18) Brent Hayden (45.37)	Canada	9 August 2009	Leeds

Women long course

Correct as of August 2025^[86]

Pos	Time	Swimmer	Nationality	Date	Venue	Ref
1	3:49.34	Regan Smith (57.57) Kate Douglass (1:04.27) Gretchen Walsh (54.98) Torri Huske (52.52)	United States	3 August 2025	Singapore	^[53]
2	3:51.60	Kaylee McKeown (58.01) Chelsea Hodges (1:05.57) Emma McKeon (55.91) Cate Campbell (52.11)	Australia	1 August 2021	Tokyo	^[87]
3	3:52.19	Zhao Jing (58.98) Chen Huijia (1:04.12) Jiao Liuyang (56.24) Li Zhesi (52.81)	China	1 August 2009	Rome
4	3:52.60	Kylie Masse (57.90) Sydney Pickrem (1:07.17) Maggie Mac Neil (55.27) Penny Oleksiak (52.26)	Canada	1 August 2021	Tokyo	^[87]
5	3:53.38	Anastasia Fesikova (58.96) Yuliya Yefimova (1:04.03) Svetlana Chimrova (56.99) Veronika Popova (53.40)	Russia	30 July 2017	Budapest
6	3:54.01	Kathleen Dawson (58.08) Molly Renshaw (1:05.72) Laura Stephens (57.55) Anna Hopkin (52.66)	Great Britain	23 May 2021	Budapest	^[88]
7	3:54.27	Michelle Coleman (59.75) Sophie Hansson (1:05.67) Louise Hansson (56.12) Sarah Sjöström (52.73)	Sweden	1 August 2021	Tokyo	^[89]
8	3:54.73	Natsumi Sakai (59.42) Satomi Suzuki (1:05.43) Rikako Ikee (55.80) Tomomi Aoki (54.08)	Japan	23 August 2018	Jakarta
9	3:55.01	Mie Nielsen (58.75) Rikke Møller Pedersen (1:06.62) Jeanette Ottesen (56.43) Pernille Blume (53.21)	Denmark	13 August 2016	Rio de Janeiro
10	3:55.79	Daniela Samulski (59.85) Sarah Poewe (1:06.81) Annika Mehlhorn (57.14) Britta Steffen (51.99)	Germany	1 August 2009	Rome
10	3:55.79	Margherita Panziera (1:00.55) Arianna Castiglioni (1:05.26) Elena Di Liddo (56.74) Federica Pellegrini (53.24)	Italy	30 July 2021	Tokyo

Women short course

Correct as of December 2024

Pos	Time	Swimmer	Nationality	Date	Venue	Ref
1	3:40.41	Regan Smith (54.02) Lilly King (1:03.02) Gretchen Walsh (52.84) Kate Douglass (50.53)	United States	15 December 2024	Budapest	^[90]
2	3:44.92	Kaylee McKeown (55.74) Jenna Strauch (1:04.49) Emma McKeon (53.93) Meg Harris (50.76)	Australia	18 December 2022	Melbourne	^[91]
3	3:46.20	Louise Hansson (56.25) Sophie Hansson (1:03.70) Sarah Sjöström (54.65) Michelle Coleman (51.60)	Sweden	21 December 2021	Abu Dhabi	^[92]
4	3:46.22	Ingrid Wilm (55.36) Sydney Pickrem (1:04.42) Maggie Mac Neil (54.59) Taylor Ruck (51.85)	Canada	18 December 2022	Melbourne	^[91]
5	3:47.41	Peng Xuwei (57.12) Tang Qianting (1:03.25) Zhang Yufei (54.93) Cheng Yujie (52.11)	China	21 December 2021	Abu Dhabi	^[92]
6	3:47.70	Kira Toussaint (56.53) Tes Schouten (1:05.28) Maaike de Waard (55.42) Marrit Steenbergen (50.47)	Netherlands	18 December 2022	Melbourne	^[91]
7	3:47.84	Abbie Wood (57.44) Angharad Evans (1:03.18) Eva Okaro (56.11) Freya Anderson (51.11)	Great Britain	15 December 2024	Budapest	^[93]
8	3:48.86	Mie Nielsen (56.86) Rikke Møller-Pedersen (1:04.62) Jeanette Ottesen (54.99) Pernille Blume (52.39)	Denmark	7 December 2014	Doha	^[94]
9	3:49.35	Elizaveta Agapitova (58.16) Evgeniia Chikunova (1:03.26) Arina Surkova (56.48) Daria Klepikova (51.45)	Russia	15 December 2024	Budapest	^[95]
10	3:50.28	Emi Moronuki (58.25) Miho Teramura (1:03.56) Rikako Ikee (55.43) Tomomi Aoki (53.04)	Japan	11 December 2016	Windsor	^[96]
10	3:50.28	Pauline Mahieu (57.22) Charlotte Bonnet (1:04.12) Béryl Gastaldello (56.20) Mary-Ambre Moluh (52.74)	France	18 December 2022	Melbourne	^[91]

Mixed long course

Correct as of July 2025

Pos	Time	Swimmer	Nationality	Date	Venue	Ref
1	3:37.43	Ryan Murphy (52.08) Nic Fink (58.29) Gretchen Walsh (55.18) Torri Huske (51.88)	United States	3 August 2024	Paris	^[73]
2	3:37.55	Xu Jiayu (52.13) Qin Haiyang (57.82) Zhang Yufei (55.64) Yang Junxuan (51.96)	China	3 August 2024	Paris	^[73]
3	3:37.58	Kathleen Dawson (58.80) Adam Peaty (56.78) James Guy (50.00) Anna Hopkin (52.00)	Great Britain	31 July 2021	Tokyo	^[97]
4	3:37.97	Miron Lifintsev (51.78) Kirill Prigoda (57.56) Daria Klepikova (55.97) Daria Trofimova (52.66)	Russia	30 July 2025	Singapore	^[98]
5	3:38.76	Kaylee McKeown (57.90) Joshua Yong (58.43) Matthew Temple (50.42) Mollie O'Callaghan (52.01)	Australia	3 August 2024	Paris	^[73]
6	3:39.28	Thomas Ceccon (52.23) Nicolò Martinenghi (57.73) Elena Di Liddo (56.62) Federica Pellegrini (52.70)	Italy	31 July 2021	Tokyo	^[99]
7	3:40.90	Kylie Masse (58.69) Oliver Dawson (59.63) Joshua Liendo (49.64) Taylor Ruck (52.94)	Canada	30 July 2025	Singapore	^[98]
8	3:40.96	Yohann Ndoye-Brouard (52.80) Leon Marchand (58.66) Marie Wattel (56.44) Beryl Gastaldello (53.06)	France	3 August 2024	Paris	^[73]
9	3:40.97	Kai van Westering (54.03) Caspar Corbeau (58.74) Tessa Giele (56.29) Marrit Steenbergen (51.91)	Netherlands	30 July 2025	Singapore	^[98]
10	3:40.98	Ryosuke Irie (52.83) Yasuhiro Koseki (58.57) Rikako Ikee (55.53) Tomomi Aoki (54.05)	Japan	9 August 2018	Tokyo

Mixed short course

Correct as of December 2024

Pos	Time	Swimmer	Nationality or Club	Date	Venue	Ref
1	3:30.47	Miron Lifintsev Kirill Prigoda Arina Surkova Daria Klepikova	Russia	14 December 2024	Budapest	^[100]^[101]
2	3:30.55	Regan Smith Lilly King Dare Rose Jack Alexy	United States	14 December 2024	Budapest	^[100]
3	3:31.97		Canada	14 December 2024	Budapest	^[100]
4	3:32.83		Australia	14 December 2024	Budapest	^[100]
5	3:35.46		Great Britain	14 December 2024	Budapest	^[100]
6	3:35.52		Spain	14 December 2024	Budapest	^[100]
7	3:35.54		Italy	14 December 2024	Budapest	^[100]
8	3:36.04		Netherlands	14 December 2024	Budapest	^[100]

All-time top 25

Men long course

Correct as of August 2026^[74]

Pos	Time	Swimmer	Nationality	Date	Venue	Ref
1	3:26.78	Ryan Murphy (52.31) Michael Andrew (58.49) Caeleb Dressel (49.03) Zach Apple (46.95)	United States	1 August 2021	Tokyo	^[102]
2	3:26.93	Miron Lifintsev (52.44) Kirill Prigoda (57.92) Andrey Minakov (50.17) Egor Kornev (46.40)	Neutral Athletes B	3 August 2025	Singapore	^[76]
3	3:27.01	Xu Jiayu (52.05) Qin Haiyang (57.63) Wang Changhao (50.68) Pan Zhanle (46.65)	China	26 September 2023	Hangzhou	^[77]
4	3:27.20	Ryan Murphy (52.04) Nic Fink (58.03) Dare Rose (50.13) Jack Alexy (47.00)	United States	30 July 2023	Fukuoka	^[103]
5	3:27.28	Aaron Peirsol (52.19) Eric Shanteau (58.57) Michael Phelps (49.72) David Walters (46.80)	United States	2 August 2009	Rome
6	3:27.46	Xu Jiayu (52.37) Qin Haiyang (57.98) Sun Jiajun (51.19) Pan Zhanle (45.92)	China	4 August 2024	Paris	^[104]
7	3:27.51	Luke Greenbank (53.63) Adam Peaty (56.53) James Guy (50.27) Duncan Scott (47.08)	Great Britain	1 August 2021	Tokyo	^[75]
7	3:27.51	Thomas Ceccon (51.93) Nicolò Martinenghi (57.47) Federico Burdisso (50.63) Alessandro Miressi (47.48)	Italy	25 June 2022	Budapest	^[78]
9	3:27.79	Ryan Murphy (52.51) Nic Fink (57.86) Michael Andrew (50.06) Ryan Held (47.36)	United States	25 June 2022	Budapest	^[78]
10	3:27.91	Matt Grevers (52.26) Kevin Cordes (58.89) Caeleb Dressel (49.76) Nathan Adrian (47.00)	United States	30 July 2017	Budapest
11	3:27.95	Ryan Murphy (51.85) Cody Miller (59.03) Michael Phelps (50.33) Nathan Adrian (46.74)	United States	13 August 2016	Rio de Janeiro
12	3:27.96	Yohann Ndoye-Brouard (52.26) Léon Marchand (58.44) Maxime Grousset (49.27) Yann Le Goff (47.99)	France	3 August 2025	Singapore	^[76]
13	3:28.10	Luke Greenbank (53.95) Adam Peaty (57.20) James Guy (50.81) Duncan Scott (46.14)	Great Britain	28 July 2019	Gwangju
14	3:28.38	Yohann Ndoye-Brouard (52.60) Léon Marchand (58.62) Maxime Grousset (49.57) Florent Manaudou (47.59)	France	4 August 2024	Paris	^[104]
15	3:28.45	Ryan Murphy (52.92) Andrew Wilson (58.65) Caeleb Dressel (49.28) Nathan Adrian (47.60)	United States	28 July 2019	Gwangju
16	3:28.46	Thomas Ceccon (52.82) Nicolò Martinenghi (57.72) Matteo Rivolta (50.75) Alessandro Miressi (47.17)	Italy	17 August 2022	Rome	^[105]
17	3:28.49	Miron Lifintsev (52.23) Kirill Prigoda (57.89) Roman Shevliakov (50.98) Egor Kornev (47.39)	Saint-Petersburg	18 April 2025	Kazan	^[106]
18	3:28.58	Helge Meeuw (52.27) Hendrik Feldwehr (58.51) Benjamin Starke (50.91) Paul Biedermann (46.89)	Germany	2 August 2009	Rome
19	3:28.59	Luke Greenbank (53.64) Adam Peaty (57.38) James Guy (50.65) Duncan Scott (46.92)	Great Britain	23 May 2021	Budapest	^[107]
20	3:28.62	Tommy Janton (53.37) Josh Matheny (59.00) Dare Rose (50.30) Jack Alexy (45.95)	United States	3 August 2025	Singapore	^[76]
21	3:28.64	Ashley Delaney (53.10) Brenton Rickard (57.80) Andrew Lauterstein (50.58) Matt Targett (47.16)	Australia	2 August 2009	Rome
22	3:28.67	Kliment Kolesnikov (53.00) Ivan Kozhakin (58.48) Andrey Minakov (50.34) Egor Kornev (46.85)	Russia	16 August 2026	Paris	^[108]
23	3:28.72	Thomas Ceccon (51.80) Nicolò Martinenghi (58.42) Federico Burdisso (51.17) Carlos D'Ambrosio (47.33)	Italy	3 August 2025	Singapore	^[76]
24	3:28.81	Evgeny Rylov (52.57) Kirill Prigoda (58.68) Andrey Minakov (50.54) Vladimir Morozov (47.02)	Russia	28 July 2019	Gwangju
25	3:28.86	Thomas Ceccon (52.72) Nicolò Martinenghi (58.00) Alberto Razzetti (51.13) Carlos D'Ambrosio (47.01)	Italy	16 August 2026	Paris	^[109]

Men short course

Correct as of December 2024^[80]

Pos	Time	Swimmer	Nationality or Club	Date	Venue	Ref
1	3:18.28	Kliment Kolesnikov (48.58) Ilya Shymanovich (55.38) Chad Le Clos (48.53) Florent Manaudou (45.79)	Energy Standard Russia Belarus South Africa France	21 November 2020	Budapest	^[110]
2	3:18.68	Miron Lifintsev (49.31) Kirill Prigoda (55.15) Andrey Minakov (48.80) Egor Kornev (45.42)	Russia	15 December 2024	Budapest	^[81]
3	3:18.98	Isaac Cooper (49.46) Joshua Yong (56.55) Matthew Temple (48.34) Kyle Chalmers (44.63)	Australia	18 December 2022	Melbourne	^[82]
3	3:18.98	Ryan Murphy (48.96) Nic Fink (54.88) Trenton Julian (49.19) Kieran Smith (45.95)	United States	18 December 2022	Melbourne	^[82]
5	3:19.03	Shaine Casas (48.92) Michael Andrew (57.03) Dare Rose (48.55) Jack Alexy (44.53)	United States	15 December 2024	Budapest	^[81]
6	3:19.06	Lorenzo Mora (49.48) Nicolò Martinenghi (55.52) Matteo Rivolta (48.50) Alessandro Miressi (45.56)	Italy	18 December 2022	Melbourne	^[82]
7	3:19.16	Stanislav Donets (49.63) Sergey Geybel (56.43) Yevgeny Korotyshkin (48.35) Danila Izotov (44.75)	Russia	20 December 2009	Saint Petersburg
8	3:19.50	Guilherme Guido (49.40) Adam Peaty (54.84) Marius Kusch (49.30) Duncan Scott (45.96)	London Roar Brazil Great Britain Germany Great Britain	14 November 2020	Budapest	^[111]
9	3:19.55	Kliment Kolesnikov (49.63) Ilya Shymanovich (55.17) Chad Le Clos (48.98) Florent Manaudou (45.77)	Energy Standard Russia Belarus South Africa France	14 November 2020	Budapest	^[111]
10	3:19.64	Coleman Stewart (49.62) Nic Fink (55.21) Caeleb Dressel (49.21) Justin Ress (45.80)	Cali Condors United States	3 December 2021	Eindhoven	^[112]
11	3:19.65	Ryan Murphy (49.36) Felipe Franca Silva (56.18) Tom Shields (48.04) Maxime Rooney (46.07)	LA Current USA Brazil USA USA	21 November 2020	Budapest	^[110]
12	3:19.76	Lorenzo Mora (50.34) Nicolò Martinenghi (55.94) Matteo Rivolta (48.43) Alessandro Miressi (45.05)	Italy	21 December 2021	Abu Dhabi	^[113]
13	3:19.91	Lorenzo Mora (49.53) Ludovico Viberti (56.15) Michele Busa (48.81) Alessandro Miressi (45.42)	United States	15 December 2024	Budapest	^[81]
14	3:19.98	Ryan Murphy (49.63) Andrew Wilson (56.84) Caeleb Dressel (48.28) Ryan Held (45.23)	United States	16 December 2018	Hangzhou
15	3:20.01	Coleman Stewart (49.83) Nic Fink (56.30) Caeleb Dressel (48.18) Justin Ress (45.70)	Cali Condors United States	21 November 2020	Budapest	^[110]
16	3:20.50	Shaine Casas (50.44) Nic Fink (55.27) Trenton Julian (49.36) Ryan Held (45.43)	United States	21 December 2021	Abu Dhabi	^[113]
17	3:20.61	Kliment Kolesnikov (49.62) Kirill Prigoda (55.98) Mikhail Vekovishchev (50.00) Vladimir Morozov (45.01)	Russia	16 December 2018	Hangzhou	^[83]
17	3:20.61	Kliment Kolesnikov (49.90) Ilya Shymanovich (55.38) Chad le Clos (48.92) Adam Barrett (46.41)	Energy Standard Russia Belarus South Africa Great Britain	3 December 2021	Eindhoven	^[112]
19	3:20.65	Kliment Kolesnikov (49.47) Danil Semianinov (57.06) Andrey Minakov (48.81) Aleksandr Shchegolev (45.31)	Russia	21 December 2021	Abu Dhabi	^[113]
20	3:20.67	Guilherme Guido (49.59) Adam Peaty (55.36) Marius Kusch (49.69) Duncan Scott (46.03)	London Roar Brazil Great Britain Germany Great Britain	21 November 2020	Budapest	^[110]
21	3:20.68	Evgeny Rylov (50.14) Ilya Shymanovich (55.59) Chad Le Clos (49.18) Florent Manaudou (45.77)	Energy Standard Russia Belarus South Africa France	1 November 2020	Budapest
21	3:20.68	Coleman Stewart (49.82) Nic Fink (55.98) Caeleb Dressel (48.81) Justin Ress (46.07)	Cali Condors United States	4 September 2021	Naples	^[114]
23	3:20.71	Nick Thoman (48.94) Mark Gangloff (57.03) Michael Phelps (49.93) Nathan Adrian (44.81)	United States	18 December 2009	Manchester	^[115]
24	3:20.99	Nick Thoman (49.88) Mihail Alexandrov (56.52) Ryan Lochte (49.17) Garrett Weber-Gale (45.42)	United States	19 December 2010	Dubai
25	3:21.02	Kacper Stokowski (49.10) Jan Kałusowski (56.91) Jakub Majerski (49.16) Ksawery Masiuk (45.85)	Poland	15 December 2024	Budapest	^[81]

Women long course

Correct as of August 2025^[86]

Pos	Time	Swimmer	Nationality	Date	Venue	Ref
1	3:49.34	Regan Smith (57.57) Kate Douglass (1:04.27) Gretchen Walsh (54.98) Torri Huske (52.52)	United States	3 August 2025	Singapore	^[53]
2	3:49.63	Regan Smith (57.28) Lilly King (1:04.90) Gretchen Walsh (55.03) Torri Huske (52.42)	United States	27 July 2024	Paris	^[53]
3	3:50.40	Regan Smith (57.57) Lilly King (1:04.84) Kelsi Dahlia (56.14) Simone Manuel (51.86)	United States	28 July 2019	Gwangju
4	3:51.55	Kathleen Baker (58.54) Lilly King (1:04.48) Kelsi Dahlia (56.30) Simone Manuel (52.23)	United States	30 July 2017	Budapest
5	3:51.60	Kaylee McKeown (58.01) Chelsea Hodges (1:05.57) Emma McKeon (55.91) Cate Campbell (52.11)	Australia	1 August 2021	Tokyo	^[87]
6	3:51.73	Regan Smith (58.05) Lydia Jacoby (1:05.03) Torri Huske (56.16) Abbey Weitzeil (52.49)	United States	1 August 2021	Tokyo	^[87]
7	3:52.05	Missy Franklin (58.50) Rebecca Soni (1:04.82) Dana Vollmer (55.48) Allison Schmitt (53.25)	United States	4 August 2012	London
8	3:52.08	Regan Smith (57.68) Lilly King (1:04.93) Gretchen Walsh (57.06) Kate Douglass (52.41)	United States	30 July 2023	Fukuoka	^[116]
9	3:52.19	Zhao Jing (58.98) Chen Huijia (1:04.12) Jiao Liuyang (56.24) Li Zhesi (52.81)	China	1 August 2009	Rome
10	3:52.36	Natalie Coughlin (59.12) Rebecca Soni (1:04.71) Dana Vollmer (55.74) Missy Franklin (52.79)	United States	30 July 2011	Shanghai
11	3:52.58	Emily Seebohm (59.40) Sarah Katsoulis (1:04.65) Jessicah Schipper (56.19) Lisbeth Trickett (52.34)	Australia	1 August 2009	Rome
12	3:52.60	Kylie Masse (57.90) Sydney Pickrem (1:07.17) Maggie Mac Neil (55.27) Penny Oleksiak (52.26)	Canada	1 August 2021	Tokyo	^[87]
13	3:52.67	Kaylee McKeown (57.69) Ella Ramsay (1:06.49) Alexandria Perkins (56.26) Mollie O'Callaghan (52.23)	Australia	3 August 2025	Singapore	^[53]
14	3:52.69	Emily Seebohm (59.33) Leisel Jones (1:04.58) Jessicah Schipper (56.25) Lisbeth Trickett (52.53)	Australia	17 August 2008	Beijing
15	3:52.74	Emily Seebohm (59.28) Jessica Hansen (1:05.82) Emma McKeon (56.45) Cate Campbell (51.19)	Australia	12 August 2018	Tokyo
16	3:53.13	Kathleen Baker (59.00) Lilly King (1:05.70) Dana Vollmer (56.00) Simone Manuel (52.43)	United States	13 August 2016	Rio de Janeiro
17	3:53.21	Kathleen Baker (59.41) Lilly King (1:04.86) Kelsi Dahlia (56.72) Simone Manuel (52.22)	United States	12 August 2018	Tokyo
18	3:53.23	Missy Franklin (58.39) Jessica Hardy (1:05.10) Dana Vollmer (56.31) Megan Romano (53.43)	United States	4 August 2013	Barcelona
19	3:53.30	Natalie Coughlin (58.94) Rebecca Soni (1:05.95) Christine Magnuson (56.14) Dara Torres (52.27)	United States	17 August 2008	Beijing
20	3:53.37	Kaylee McKeown (57.91) Abbey Harkin (1:07.07) Emma McKeon (56.44) Mollie O'Callaghan (51.95)	Australia	30 July 2023	Fukuoka	^[116]
21	3:53.38	Anastasia Fesikova (58.96) Yuliya Yefimova (1:04.03) Svetlana Chimrova (56.99) Veronika Popova (53.40)	Russia	30 July 2017	Budapest
22	3:53.42	Minna Atherton (59.06) Jessica Hansen (1:06.08) Emma McKeon (56.32) Cate Campbell (51.96)	Australia	28 July 2019	Gwangju
23	3:53.58	Kylie Masse (59.12) Sydney Pickrem (1:06.42) Maggie Mac Neil (55.56) Penny Oleksiak (52.48)	Canada	28 July 2019	Gwangju
24	3:53.78	Regan Smith (58.40) Lilly King (1:05.89) Torri Huske (56.67) Claire Curzan (52.82)	United States	25 June 2022	Budapest	^[117]
25	3:54.01	Kathleen Dawson (58.08) Molly Renshaw (1:05.72) Laura Stephens (57.55) Anna Hopkin (52.66)	Great Britain	23 May 2021	Budapest	^[88]

Women short course

Correct as of December 2024.

Pos	Time	Swimmer	Nationality	Date	Venue	Ref
1	3:40.41	Regan Smith (54.02) Lilly King (1:03.02) Gretchen Walsh (52.84) Kate Douglass (50.53)	United States	15 December 2024	Budapest	^[118]
2	3:44.35	Claire Curzan (56.47) Lilly King (1:02.88) Torri Huske (54.53) Kate Douglass (50.47)	United States	18 December 2022	Melbourne	^[119]
3	3:44.52	Olivia Smoliga, Lilly King, Kelsi Dahlia, Erika Brown	United States	21 November 2020	Budapest
4	3:44.92	Kaylee McKeown (55.74) Jenna Strauch (1:04.49) Emma McKeon (53.93) Meg Harris (50.76)	Australia	18 December 2022	Melbourne	^[91]
5	3:45.14	London Roar Kira Toussaint Alia Atkinson Marie Wattel Freya Anderson	Netherlands Jamaica France Great Britain	21 November 2020	Budapest
6	3:46.20	Louise Hansson (56.25), Sophie Hansson (1:03.70), Sarah Sjöström (54.65), Michelle Coleman (51.60)	Sweden	21 December 2021	Abu Dhabi	^[92]
7	3:46.22	Ingrid Wilm (55.36) Sydney Pickrem (1:04.42) Maggie Mac Neil (54.59) Taylor Ruck (51.85)	Canada	18 December 2022	Melbourne	^[91]
8	3:47.36	Kylie Masse (55.76), Sydney Pickrem (1:04.97), Maggie Mac Neil (55.30), Kayla Sanchez (51.33)	Canada	21 December 2021	Abu Dhabi	^[92]
9	3:47.41	Peng Xuwei (57.12), Tang Qianting (1:03.25), Zhang Yufei (54.93), Cheng Yujie (52.11)	China	21 December 2021	Abu Dhabi	^[92]
10	3:47.67	Alex Walsh (56.60) Lilly King (1:04.03) Kate Douglass (54.46) Erika Brown (52.58)	United States	18 December 2022	Melbourne	^[120]
11	3:47.68	Katharine Berkoff (56.02), Emily Escobedo (1:04.99), Claire Curzan (55.61), Abbey Weitzeil (51.06)	United States	21 December 2021	Abu Dhabi	^[92]
12	3:47.70	Kira Toussaint (56.53) Tes Schouten (1:05.28) Maaike de Waard (55.42) Marrit Steenbergen (50.47)	Netherlands	18 December 2022	Melbourne	^[91]
13	3:47.84	Hanna Rosvall (56.37) Sophie Hansson (1:04.96) Louise Hansson (54.57) Michelle Coleman (51.94)	Sweden	18 December 2022	Melbourne	^[91]
13	3:47.84	Abbie Wood (57.44) Angharad Evans (1:03.18) Eva Okaro (56.11) Freya Anderson (51.11)	Great Britain	15 December 2024	Budapest	^[121]
15	3:47.89		United States	11 December 2016	Windsor	^[96]
16	3:47.91	Minna Atherton (55.45), Jessica Hansen (1:04.73), Emma McKeon (55.67), Cate Campbell (52.06)	Australia	20 October 2019	Lewisville	^[122]
17	3:47.93	Qian Xinan (56.88) Tang Qianting (1:03.17) Chen Luying (56.25) Liu Shuhan (51.63)	China	15 December 2024	Budapest	^[123]
18	3:48.29		China	17 December 2010	Dubai
19	3:48.35	Hanna Rosvall (57.79) Sophie Hansson (1:04.54) Louise Hansson (54.67) Sara Junevik (51.35)	Sweden	15 December 2024	Budapest	^[124]
20	3:48.56	Katharine Berkoff (55.34) Emma Weber (1:05.30) Alex Shackell (55.81) Alex Walsh (52.11)	United States	15 December 2024	Budapest	^[125]
21	3:48.86	Mie Nielsen (56.86) Rikke Møller-Pedersen (1:04.62) Jeanette Ottesen (54.99) Pernille Blume (52.39)	Denmark	7 December 2014	Doha	^[94]
22	3:48.87		Canada	11 December 2016	Windsor	^[96]
23	3:48.90	Mollie O'Callaghan (55.81) Chelsea Hodges (1:05.24) Alexandria Perkins (56.27) Meg Harris (51.58)	Australia	18 December 2022	Melbourne	^[120]
24	3:49.10	Qian Xinan (56.69) Tang Qianting (1:03.11) Chen Luying (56.42) Liu Shuhan (52.88)	China	15 December 2024	Budapest	^[126]
25	3:49.11	Aqua Centurions Mariia Kameneva Arianna Castiglioni Elena di Liddo Federica Pellegrini	Russia Italy Italy Italy	25 September 2021	Naples	^[127]

Mixed long course

Correct as of August 2026.

Pos	Time	Swimmer	Nationality	Date	Venue	Ref
1	3:36.70	Will Modglin (53.40) Van Mathias (57.30) Gretchen Walsh (54.99) Kate Douglass (51.01)	United States	12 August 2026	Irvine	^[128]
2	3:37.43	Ryan Murphy (52.08) Nic Fink (58.29) Gretchen Walsh (55.18) Torri Huske (51.88)	United States	3 August 2024	Paris	^[73]
3	3:37.55	Xu Jiayu (52.13) Qin Haiyang (57.82) Zhang Yufei (55.64) Yang Junxuan (51.96)	China	3 August 2024	Paris	^[73]
4	3:37.58	Kathleen Dawson (58.80) Adam Peaty (56.78) James Guy (50.00) Anna Hopkin (52.00)	Great Britain	31 July 2021	Tokyo	^[97]
5	3:37.73	Xu Jiayu (51.91) Qin Haiyang (57.25) Zhang Yufei (56.05) Yang Junxuan (52.52)	China	27 September 2023	Hangzhou	^[129]
6	3:37.97	Miron Lifintsev (51.78) Kirill Prigoda (57.56) Daria Klepikova (55.97) Daria Trofimova (52.66)	Russia	30 July 2025	Singapore	^[98]
7	3:38.41	Xu Jiayu (52.45) Yan Zibei (57.96) Zhang Yufei (55.32) Yang Junxuan (52.68)	China	1 October 2020	China	^[130]
8	3:38.56	Matt Grevers (52.32) Lilly King (1:04.15) Caeleb Dressel (49.92) Simone Manuel (52.17)	United States	26 July 2017	Hungary
9	3:38.57	Xu Jiayu (52.42) Qin Haiyang (57.31) Zhang Yufei (55.69) Cheng Yujie (53.15)	China	26 July 2023	Fukuoka	^[131]
10	3:38.76	Kaylee McKeown (57.90) Joshua Yong (58.43) Matthew Temple (50.42) Mollie O'Callaghan (52.01)	Australia	3 August 2024	Paris	^[73]
11	3:38.79	Hunter Armstrong (52.14) Nic Fink (57.86) Torri Huske (56.17) Claire Curzan (52.62)	United States	21 June 2022	Budapest	^[132]
12	3:38.86	Xu Jiayu (52.56) Yan Zibei (58.11) Zhang Yufei (55.48) Yang Junxuan (52.71)	China	31 July 2021	Tokyo	^[99]
13	3:38.91	Mitch Larkin (53.08) Jake Packard (58.68) Emma McKeon (56.22) Cate Campbell (50.93)	Australia	9 August 2018	Japan
14	3:38.95	Kaylee McKeown (58.14) Zac Stubblety-Cook (58.82) Matthew Temple (50.26) Emma McKeon (51.73)	Australia	31 July 2021	Tokyo	^[99]
15	3:39.03	Kaylee McKeown (58.03) Zac Stubblety-Cook (58.84) Matthew Temple (50.63) Shayna Jack (51.53)	Australia	26 July 2023	Fukuoka	^[131]
16	3:39.08	Mitch Larkin (53.47) Matthew Wilson (58.37) Emma McKeon (56.14) Cate Campbell (51.10)	Australia	24 July 2019	Gwangju
17	3:39.10	Ryan Murphy (52.46) Lilly King (1:04.94) Caeleb Dressel (49.33) Simone Manuel (52.37)	United States	24 July 2019	Gwangju
18	3:39.28	Thomas Ceccon (52.23) Nicolò Martinenghi (57.73) Elena Di Liddo (56.62) Federica Pellegrini (52.20)	Italy	31 July 2021	Tokyo	^[99]
19	3:39.30	Iona Anderson (59.14) Sam Williamson (58.50) Matthew Temple (49.60) Meg Harris (52.06)	Australia	12 August 2026	Irvine	^[133]
20	3:39.99	Xu Jiayu (53.23) Qin Haiyang (58.14) Zhang Yufei (55.96) Wu Qingfeng (52.66)	China	30 July 2025	Singapore	^[98]
21	3:40.19	Ryan Murphy (52.02) Nic Fink (58.19) Torri Huske (58.19) Kate Douglass (51.79)	United States	26 July 2023	Fukuoka	^[131]
22	3:40.22	Hunter Armstrong (53.07) Nic Fink (58.27) Claire Curzan (56.54) Kate Douglass (52.34)	United States	14 February 2024	Doha	^[134]
23	3:40.28	Ryan Murphy (52.34) Kevin Cordes (58.95) Kelsi Worrelll (56.17) Mallory Comerford (52.82)	United States	26 July 2017	Budapest
24	3:40.45	Xu Jiayu (52.30) Yan Zibei (58.45) Zhang Yufei (56.61) Zhu Menghui (53.09)	China	22 August 2018	Jakarta
25	3:40.47	Katharine Berkoff (59.12) Josh Matheny (58.45) Dare Rose (50.50) Abbey Weitzeil (52.40)	United States	26 July 2023	Fukuoka	^[135]

Mixed short course

Correct as of December 2024

Pos	Time	Swimmer	Nationality or Club	Date	Venue	Ref
1	3:30.47	Miron Lifintsev Kirill Prigoda Arina Surkova Daria Klepikova	Russia	14 December 2024	Budapest	^[100]
2	3:30.55		United States	14 December 2024	Budapest	^[100]
3	3:31.97		Canada	14 December 2024	Budapest	^[100]
4	3:32.83		Australia	14 December 2024	Budapest	^[100]
5	3:33.31	Ingrid Wilm Christopher Rothbauer Tom Shields Abbey Weitzeil	LA Current Canada Austria United States United States	5 September 2021	Naples
6	3:35.46		Great Britain	14 December 2024	Budapest	^[100]
7	3:35.52		Spain	14 December 2024	Budapest	^[100]
8	3:35.54		Italy	14 December 2024	Budapest	^[100]
9	3:36.04		Netherlands	14 December 2024	Budapest	^[100]

Olympic champions

Men

Edition	Winner	Time	Notes
Rome 1960	United States	4:05.4	WR
Tokyo 1964	United States	3:58.4	WR
Mexico City 1968	United States	3:54.9	WR
Munich 1972	United States	3:48.16	WR
Montreal 1976	United States	3:42.22	WR
Moscow 1980	Australia	3:45.70
Los Angeles 1984	United States	3:39.30	WR
Seoul 1988	United States	3:36.93	WR
Barcelona 1992	United States	3:36.93	=WR
Atlanta 1996	United States	3:34.84	WR
Sydney 2000	United States	3:33.73	WR
Athens 2004	United States	3:30.68	WR
Beijing 2008	United States	3:29.34	WR
London 2012	United States	3:29.35
Rio de Janeiro 2016	United States	3:27.95	OR
Tokyo 2020	United States	3:26.78	WR
Paris 2024	China	3:27.46

Women

Edition	Winner	Time	Notes
Rome 1960	United States	4:41.1	WR
Tokyo 1964	United States	4:33.9	OR
Mexico City 1968	United States	4:28.3	OR
Munich 1972	United States	4:20.75	WR
Montreal 1976	East Germany	4:07.95	WR
Moscow 1980	East Germany	4:06.67	WR
Los Angeles 1984	United States	4:08.34
Seoul 1988	East Germany	4:03.74	OR
Barcelona 1992	United States	4:02.54	WR
Atlanta 1996	United States	4:02.88
Sydney 2000	United States	3:58.30	WR
Athens 2004	Australia	3:57.32	WR
Beijing 2008	Australia	3:52.69	WR
London 2012	United States	3:52.05	WR
Rio de Janeiro 2016	United States	3:53.13
Tokyo 2020	Australia	3:51.60	OR
Paris 2024	United States	3:49.63	WR

Mixed

Edition	Winner	Time	Notes	Ref.
Tokyo 2020	Great Britain	3:37.58	WR
Paris 2024	United States	3:37.43	WR

World champions (long course)

Men

Edition	Winner	Time	Notes
Belgrade 1973	United States (USA)	3:49.49	CR
Cali 1975	United States (USA)	3:49.00	CR
West Berlin 1978	United States (USA)	3:44.63	CR
Guayaquil 1982	United States (USA)	3:40.84	WR
Madrid 1986	United States (USA)	3:41.25
Perth 1991	United States (USA)	3:39.66	CR
Rome 1994	United States (USA)	3:37.74	CR
Perth 1998	Australia (AUS)	3:37.98
Fukuoka 2001	Australia (AUS)	3:35.35	CR
Barcelona 2003	United States (USA)	3:31.54	WR
Montreal 2005	United States (USA)	3:31.85
Melbourne 2007	Australia (AUS)	3:34.93
Rome 2009	United States (USA)	3:27.28	WR
Shanghai 2011	United States (USA)	3:32.06
Barcelona 2013	France (FRA)	3:31.51
Kazan 2015	United States (USA)	3:29.93
Budapest 2017	United States (USA)	3:27.91
Gwangju 2019	Great Britain (GBR)	3:28.10
Budapest 2022	Italy (ITA)	3:27.51
Fukuoka 2023	United States (USA)	3:27.20	CR
Doha 2024	United States (USA)	3:29.80
Singapore 2025	Neutral Athletes B (NAB)	3:26.93	CR

Women

Edition	Winner	Time	Notes
Belgrade 1973	East Germany (GDR)	4:16.84	WR
Cali 1975	East Germany (GDR)	4:14.74	CR
West Berlin 1978	United States (USA)	4:08.21	CR
Guayaquil 1982	East Germany (GDR)	4:05.88	WR
Madrid 1986	East Germany (GDR)	4:04.82	CR
Perth 1991	United States (USA)	4:06.51
Rome 1994	China (CHN)	4:01.67	WR
Perth 1998	United States (USA)	4:01.93
Fukuoka 2001	Australia (AUS)	4:01.50	CR
Barcelona 2003	United States (USA)	3:59.89	CR
Montreal 2005	Australia (AUS)	3:57.47	CR
Melbourne 2007	Australia (AUS)	3:55.74	WR
Rome 2009	China (CHN)	3:52.19	WR
Shanghai 2011	United States (USA)	3:52.36
Barcelona 2013	United States (USA)	3:53.23
Kazan 2015	China (CHN)	3:54.41
Budapest 2017	United States (USA)	3:51.55	WR
Gwangju 2019	United States (USA)	3:50.40	WR
Budapest 2022	United States (USA)	3:53.78
Fukuoka 2023	United States (USA)	3:52.08
Doha 2024	Australia (AUS)	3:55.98
Singapore 2025	United States (USA)	3:49.34	WR

Mixed

Edition	Winner	Time	Notes
Kazan 2015	Great Britain (GBR)	3:41.71	WR
Budapest 2017	United States (USA)	3:38.56	WR
Gwangju 2019	Australia (AUS)	3:39.08
Budapest 2022	United States (USA)	3:38.79
Fukuoka 2023	China (CHN)	3:38.57
Doha 2024	United States (USA)	3:40.22
Singapore 2025	Neutral Athletes B (NAB)	3:37.97	CR

World champions (short course)

Men

Edition	Winner	Time	Notes
Palma de Mallorca 1993	United States (USA)	3:32.57	WR
Rio de Janeiro 1995	New Zealand (NZL)	3:35.69
Gothenburg 1997	Australia (AUS)	3:30.66	WR
Hong Kong 1999	Australia (AUS)	3:29.88	WR
Athens 2000	United States (USA)	3:30.03
Moscow 2002	United States (USA)	3:29.00	WR
Indianapolis 2004	United States (USA)	3:25.09	WR
Shanghai 2006	Australia (AUS)	3:27.71
Manchester 2008	Russia (RUS)	3:24.29	WR
Dubai 2010	United States (USA)	3:20.99	CR
Istanbul 2012	United States (USA)	3:21.03
Doha 2014	Brazil (BRA)	3:21.14
Windsor 2016	Russia (RUS)	3:21.17
Hangzhou 2018	United States (USA)	3:19.98	CR
Abu Dhabi 2021	Italy (ITA)	3:19.76	CR
Melbourne 2022	Australia (AUS)	3:18.98	WR
Melbourne 2022	United States (USA)	3:18.98	WR
Budapest 2024	Neutral Athletes B (NAB)	3:18.68	WR

Women

Edition	Winner	Time	Notes
Palma de Mallorca 1993	China (CHN)	3:57.73	WR
Rio de Janeiro 1995	Australia (AUS)	4:00.46
Gothenburg 1997	China (CHN)	3:57.83
Hong Kong 1999	Japan (JPN)	3:57.62	WR
Athens 2000	Sweden (SWE)	3:59.53
Moscow 2002	Sweden (SWE)	3:55.78	WR
Indianapolis 2004	Australia (AUS)	3:54.95	WR
Shanghai 2006	Australia (AUS)	3:51.84	WR
Manchester 2008	United States (USA)	3:51.36	WR
Dubai 2010	China (CHN)	3:48.29	CR
Istanbul 2012	Denmark (DEN)	3:49.87
Doha 2014	Denmark (DEN)	3:48.86
Windsor 2016	United States (USA)	3:47.89	CR
Hangzhou 2018	United States (USA)	3:45.58	CR
Abu Dhabi 2021	Sweden (SWE)	3:46.20
Melbourne 2022	United States (USA)	3:44.35	WR
Budapest 2024	United States (USA)	3:40.41	WR

Mixed

Edition	Winner	Time	Notes	Ref.
Budapest 2024	Neutral Athletes B (NAB)	3:30.47

References

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v t e World records in swimming
Freestyle	50 100 200 400 800 1500
Backstroke	50 100 200
Breaststroke	50 100 200
Butterfly	50 100 200
Individual medley	100 200 400
Relays	4 × 50 freestyle relay 4 × 100 freestyle relay 4 × 200 freestyle relay 4 × 50 medley relay 4 × 100 medley relay