The 4 × 50 metres medley relay is an event in competitive swimming. It is only recognised by World Aquatics (formerly FINA) in short course.
Each of four swimmers on a team swims a 50 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. The current world record holders are Italy (men), Australia (women) and the US (mixed). The men's, women's and mixed events were first contested at the World Aquatics Swimming Championships (25m) in 2014; the men's and women's events were removed from the 2024 program. The current world champion (mixed) is Neutral Athletes B.
World record progression
Men
Women
Notes
Mixed
All-time top 10 by country
Men Correct as of December 2023 PosTimeSwimmerNationalityDateVenueRef11:29.72Lorenzo Mora (22.65)Nicolò Martinenghi (24.95)Matteo Rivolta (21.60)Leonardo Deplano (20.52)17 December 2022Melbourne21:30.37Ryan Murphy (22.61)Nic Fink (25.24)Shaine Casas (22.13)Michael Andrew (20.39)17 December 2022Melbourne31:30.44Kliment Kolesnikov (22.83)Kirill Prigoda (25.26)Aleksandr Popkov (22.11)Vladimir Morozov (20.24)17 December 2017Copenhagen41:30.51Guilherme Guido (23.42)Felipe França Silva (25.33)Nicholas Santos (21.68)César Cielo (20.08)4 December 2014Doha51:30.81Isaac Cooper (22.66)Grayson Bell (25.92)Matthew Temple (21.75)Kyle Chalmers (20.48)17 December 2022Melbourne61:31.25Benjamin Stasiulis (23.41)Giacomo Perez-Dortona (25.74)Mehdy Metella (22.06)Florent Manaudou (20.04)4 December 2014Doha71:31.28Takeshi Kawamoto (22.93)Yuya Hinomoto (25.64)Yuya Tanaka (22.13)Masahiro Kawane (20.58)17 December 2022Melbourne81:31.79Ole Braunschweig (23.09)Lucas Matzerath (25.87)Marius Kusch (21.72)Josha Salchow (21.11)17 December 2022Melbourne91:32.06Pavel Sankovich (23.16)Ilya Shymanovich (25.48)Yauhen Tsurkin (22.23)Anton Latkin (21.19)17 December 2017Copenhagen101:32.10Richárd Bohus (23.42)Dávid Horváth (26.64)Szebasztián Szabó (21.77)Maksim Lobanovskij (20.27)8 December 2019Glasgow
Women Correct as of December 2023 PosTimeSwimmerNationalityDateVenueRef11:42.35Mollie O'Callaghan (25.49)Chelsea Hodges (29.11)Emma McKeon (24.43)Madison Wilson (23.32)17 December 2022Melbourne21:42.38Olivia Smoliga (25.97)Katie Meili (29.29)Kelsi Dahlia (24.02)Mallory Comerford (23.10)12 December 2018HangzhouLouise Hansson (25.91)Sophie Hansson (29.07)Sarah Sjöström (23.96)Michelle Coleman (23.44)17 December 2021Abu Dhabi41:42.69Hinkelien Schreuder (26.32)Moniek Nijhuis (29.16)Inge Dekker (24.51)Ranomi Kromowidjojo (22.70)12 December 2009Istanbul51:43.56Kylie Masse (25.84)Sydney Pickrem (29.69)Maggie Mac Neil (24.40)Taylor Ruck (23.63)17 December 2022Melbourne61:43.96Analia Pigrée (26.49)Charlotte Bonnet (29.64)Mélanie Henique (24.78)Beryl Gastadello (23.24)17 December 2022Melbourne71:43.97Costanza Cocconcelli (26.87)Benedetta Pilato (28.75)Silvia di Pietro (25.19)Jasmine Nocentini (23.16)7 December 2023Otopeni81:44.04Mie Nielsen (26.39)Rikke Pedersen (29.56)Jeanette Ottesen (24.09)Pernille Blume (24.00)5 December 2014Doha91:44.19Maria Kameneva (26.42)Nika Godun (29.47)Arina Surkova (24.49)Daria Klepikova (23.81)4 November 2021Kazan101:44.31Fu Yuanhui (26.20)Suo Ran (29.63)Wang Yichun (24.84)Wu Yue (23.64)12 December 2018Hangzhou
Mixed Correct as of December 2024 PosTimeSwimmerNationalityDateVenueRef11:35.15Ryan Murphy (22.37)Nic Fink (24.96)Kate Douglass (24.09)Torri Huske (23.73)14 December 2022Melbourne21:36.01Lorenzo Mora (22.59)Nicolò Martinenghi (24.83)Silvia Di Pietro (24.52)Costanza Cocconcelli (24.07)14 December 2022Melbourne31:36.11Kliment Kolesnikov (22.60)Kirill Prigoda (25.34)Arina Surkova (24.85)Maria Kameneva (23.32)16 December 2022Saint Petersburg41:36.18Kira Toussaint (25.99)Arno Kamminga (25.54)Maaike de Waard (24.50)Thom de Boer (20.15)7 November 2021Kazan51:36.93Kylie Masse (25.71)Javier Acevedo (25.95)Ilya Kharun (22.12)Maggie Mac Neil (23.15)14 December 2022Melbourne61:37.05Louise Hansson (26.07)Daniel Kertes (25.48)Sara Junevik (24.49)Elias Persson (21.01)11 December 2024Budapest71:37.07Medi Harris (26.60)Adam Peaty (25.24)Ben Proud (21.93)Anna Hopkin (23.30)14 December 2022Melbourne81:37.14Mewen Tomac (22.83)Florent Manaudou (25.70)Béryl Gastaldello (24.92)Charlotte Bonnet (23.69)10 December 2023Otopeni91:37.29Kaiya Seki (23.04)Taku Taniguchi (25.21)Mizuki Hirai (25.07)Yume Jinno (23.91)11 December 2024Budapest101:37.31Wang Gukailai (23.74)Yan Zibei (25.41)Zhang Yufei (24.54)Wu Qingfeng (23.62)14 December 2022Melbourne
All-time rankings Tables show data for the top 25 4 × 50 m medley relay times and the top 10 national records:- denotes top 10 national record by teams in the top 25 4 × 50 m medley relay times- denotes lesser performances, still in the top 25 4 × 50 m medley relay times, by repeat nations- denotes performances in the top 25 4 × 50 m medley relay times by a team with multiple nationalities- denotes top 10 national record for other teams who fall outside the top 25 4 × 50 m medley relay times
Men Correct as of September 2026 Time Athletes Team Date Place 1 11:29.72Lorenzo Mora (22.65)Nicolò Martinenghi (24.95)Matteo Rivolta (21.60)Leonardo Deplano (20.52)17 December 2022Melbourne 21:30.14Michele Lamberti (22.62)Nicolò Martinenghi (25.14)Marco Orsi (22.17)Lorenzo Zazzeri (20.21)Italy #22 November 2021Kazan 2 31:30.37Ryan Murphy (22.61)Nic Fink (25.24)Shaine Casas (22.13)Michael Andrew (20.39)17 December 2022Melbourne 3 41:30.44Kliment Kolesnikov (22.83)Kirill Prigoda (25.26)Aleksandr Popkov (22.11)Vladimir Morozov (20.24)17 December 2017Copenhagen 51:30.49Francesco Lazzari (23.05)Simone Cerasuolo (25.42)Simone Stefanì (21.52)Leonardo Deplano (20.50)Italy #37 December 2025Lublin 4 61:30.51Guilherme Guido (23.42)Felipe França Silva (25.33)Nicholas Santos (21.68)César Cielo (20.08)4 December 2014Doha 6 1:30.51Kliment Kolesnikov (22.76)Kirill Strelnikov (25.62)Andrey Minakov (21.76)Vladimir Morozov (20.37)Russia #220 December 2021Abu DhabiShaine Casas (23.11)Nic Fink (25.13)Tom Shields (21.75)Ryan Held (20.52)US #220 December 2021Abu Dhabi 91:30.54Kliment Kolesnikov (22.87)Oleg Kostin (25.36)Mikhail Vekovishchev (22.09)Evgeny Rylov (20.22)Russia #315 December 2018Hangzhou 101:30.63Kliment Kolesnikov (22.64)Vladimir Morozov (25.53)Oleg Kostin (21.61)Vladislav Grinev (20.85)Russia #48 December 2019Glasgow 11 1:30.78Lorenzo Mora (23.24)Nicolò Martinenghi (25.30)Matteo Rivolta (21.95)Lorenzo Zazzeri (20.29)Italy #420 December 2021Abu DhabiLorenzo Mora (22.98)Nicolò Martinenghi (25.32)Thomas Ceccon (22.05)Lorenzo Zazzeri (20.43)Italy #56 December 2023Otopeni 131:30.79Kliment Kolesnikov (22.58)Oleg Kostin (25.51)Wladimir Morozov (22.18)Vladislav Grinev (20.52)Russia #52 November 2021Kazan 5 141:30.81Isaac Cooper (22.66)Grayson Bell (25.92)Matthew Temple (21.75)Kyle Chalmers (20.48)17 December 2022Melbourne 151:30.90Ryan Murphy (22.73)Michael Andrew (26.16)Caeleb Dressel (21.70)Ryan Held (20.31)US #315 December 2018Hangzhou 6 161:30.99Mewen Tomac (22.98)Jérémie Delbois (26.00)Clément Secchi (22.05)Maxime Grousset (19.96)7 December 2025Lublin 171:31.25Benjamin Stasiulis (23.41)Giacomo Perez-Dortona (25.74)Mehdy Metella (22.06)Florent Manaudou (20.04)France #24 December 2014Doha 7 181:31.28Takeshi Kawamoto (22.93)Yuya Hinomoto (25.64)Yuya Tanaka (22.13)Masahiro Kawane (20.58)17 December 2022Melbourne 191:31.31Jonathon Marshall (23.34)Julian Smith (25.63)Joshua Liendo (21.43)Ed Fullum-Huot (20.91)University of Florida18 October 2024Charlottesville 201:31.41Mewen Tomac (22.96)Carl Aitkaci (26.01)Maxime Grousset (21.90)Florent Manaudou (20.54)France #317 December 2022Melbourne 211:31.49Guilherme Guido (22.97)Felipe Lima (25.48)Nicholas Santos (22.02)César Cielo (21.02)Brazil #215 December 2018Hangzhou 221:31.52Andrey Shabasov (23.46)Kirill Prigoda (25.52)Aleksandr Popkov (22.08)Vladimir Morozov (20.46)Russia #610 December 2016Windsor 231:31.54Simone Sabbioni (23.40)Fabio Scozzoli (25.51)Marco Orsi (22.23)Santo Condorelli (20.40)Italy #615 December 2018Hangzhou 241:31.71Simone Sabbioni (23.29)Fabio Scozzoli (25.88)Matteo Rivolta (22.19)Marco Orsi (20.35)Italy #76 December 2015Netanya 8 251:31.79Ole Braunschweig (23.09)Lucas Matzerath (25.87)Marius Kusch (21.72)Josha Salchow (21.11)17 December 2022Melbourne 91:31.84Iván Martínez Sota (23.31)Carles Coll (25.65)Hugo González (22.60)Sergio de Celis (20.28)7 December 2025Lublin 101:31.85Lukas Edl (23.70)Valentin Bayer (25.79)Simon Bucher (22.01)Heiko Gigler (20.35)7 December 2025Lublin
Women Correct as of September 2026