Swimming at the 2024 Summer Olympics – Men's 400 metre freestyle

Records 
Prior to dis competition, na de existing world den Olympic records be as follows.
World recordPaul Biedermann (GER)3:40.07Rome, Italy26 July 2009Cowley, Michael (27 July 2009). "Thorpe's mark tumbles in night of world records". Sydney Morning Herald. Retrieved 7 July 2013.Olympic recordSun Yang (CHN)3:40.14London, Great Britain28 July 2012"Olympic swimming: China's Sun Yang beats rival Park to gold". BBC Sport. 28 July 2012. Archived from the original on 31 July 2012. Retrieved 7 July 2013.

 Qualification 
National Olympic Committee (NOC) fi enter maximum of two qualified athletes insyd each individual event, buh only if both of dem attain de Olympic Qualifying Time (OQT). One athlete per event fi potentially enter if dem meet de Olympic Consideration Time (OCT), anaa if de total quota of 852 athletes no be targeted. NOCs sanso fi permit swimmers regardless of time (one per gender) under Universality place since dem get no swimmers wey dey attain either of de standard entry times (OQT/OCT)."Paris 2024 – Swimming Info". World Aquatics. 5 April 2022. Retrieved 12 November 2022.Rieder, David (3 April 2022). "Event Changes Likely as Paris 2024 Moves to Nine-Day Schedule of Finals". Swimming World Magazine. Retrieved 12 November 2022.

Dey follow de end of de qualification window, World Aquatics go assess de number of swimmers wey achieve de OQT, de number of relay-only swimmers, den de number of Universality places, before dem invite those plus OCT make dem fulfill de total quota of 852. Additionally, dem go distribute OCT places by event according to de position of de World Aquatics Rankings during de qualifying deadline.

 Time standards 
Dem for obtain de qualifying time standards for de 2023 den 2024 World Championships, continental championships, continental swimming meets, national championships den selection trials, den various international meets dem approve by World Aquatics insyd de period between 1 March 2023 den 23 June 2024."Paris 2024 - Swimming Info". World Aquatics. 3 October 2022.

De table wey dey follow dey outline de qualifying time standards for Paris 2024 for dis event:
Men's eventsEventOQT*OCT^400 m freestyle3:46.78ª3:47.91
* OQTs dey correspond to de time dem achieve by fourteenth-place swimmer for ein respective preliminary heat of each event for de previous Games.

ª Secof de fourteenth-place swimmer achieve standard slower dan de OQT insyd Tokyo 2020, de OQT dem use for de previous Games go remain constant.

^ Dem dey derive OCTs by adding 0.5% of de OQT standard.

 Competition format 
De competition dey consist of three rounds: heats, semifinals, den final. De swimmers plus de best 16 times insyd de heats advance go de semifinals. De swimmers plus de best 8 times insyd de semifinals advance go de final. Dem dey use swim-offs as necessary make dem break ties for advancement to de next round.

 Schedule 
All times be Central European Summer Time (UTC+2)
DateTimeRound27 July 202410:00Heats27 July 202420:42Final

 Results 

 Heats 
RankHeatLaneSwimmerNationTimeNotes154Lukas MärtensGermany3:44.13Q243Guilherme CostaBrazil3:44.23Q333Fei LiweiChina3:44.60Q455Elijah WinningtonAustralia3:44.87Q544Samuel ShortAustralia3:44.88Q641Aaron ShackellUnited States3:45.45Q745Kim Woo-minSouth Korea3:45.52Q853Oliver KlemetGermany3:45.75Q935Ahmed JaouadiTunisia3:46.191047Danas RapšysLithuania3:46.271148Kieran SmithUnited States3:46.471251Zhang ZhanshuoChina3:46.7642Lucas HenveauxBelgium3:46.761438Zalán SárkányHungary3:47.33PB1537David AubryFrance3:47.531658Kieran BirdGreat Britain3:47.541757Marco De TullioItaly3:47.901834Victor JohanssonSweden3:47.981931Alfonso MestreVenezuela3:48.202036Matteo LambertiItaly3:48.382152Petar MitsinBulgaria3:49.302225Kregor ZirkEstonia3:49.592346Antonio DjakovicSwitzerland3:49.772456Felix AuböckAustria3:50.502527Eduardo CisternasChile3:51.29NR2623Ilia SibirtsevUzbekistan3:51.522724Khiew Hoe YeanMalaysia3:51.662832Eduardo MoraesBrazil3:51.742922Joaquín VargasPeru3:54.593026Jovan LekićBosnia and Herzegovina3:57.903128Pavel AlovațkiMoldova3:59.773221Loris BianchiSan Marino4:01.133315Ilias el FallakiMorocco4:01.593413Raekwon NoelGuyana4:02.29NR3516Alberto VegaCosta Rica4:03.143612Ridhwan AbubakarKenya4:05.143714Nikola ǴuretanoviḱNorth Macedonia4:05.38
Source:"Men's 400m Freestyle - Heats results" (PDF). Olympics. 27 July 2024. Retrieved 27 July 2024.

 Final 
RankLaneSwimmerNationTimeNotes4Lukas MärtensGermany3:41.786Elijah WinningtonAustralia3:42.211Kim Woo-minSouth Korea3:42.5042Samuel ShortAustralia3:42.6455Guilherme CostaBrazil3:42.76AM63Fei LiweiChina3:44.2478Oliver KlemetGermany3:46.5987Aaron ShackellUnited States3:47.00
Source:"Men's 400m Freestyle - Final results" (PDF). Olympics. 27 July 2024. Retrieved 27 July 2024.

 References 

Olympic champions insyd men's 400 m freestyle440 yards 1904:  Charles Daniels (USA)400 metres 1908:  Henry Taylor (GBR)
 1912:  George Hodgson (CAN)
 1920:  Norman Ross (USA)
 1924:  Johnny Weissmuller (USA)
 1928:  Alberto Zorrilla (ARG)
 1932:  Buster Crabbe (USA)
 1936:  Jack Medica (USA)
 1948:  Bill Smith (USA)
 1952:  Jean Boiteux (FRA)
 1956:  Murray Rose (AUS)
 1960:  Murray Rose (AUS)
 1964:  Don Schollander (USA)
 1968:  Mike Burton (USA)
 1972:  Brad Cooper (AUS)
 1976:  Brian Goodell (USA)
 1980:  Vladimir Salnikov (URS)
 1984:  George DiCarlo (USA)
 1988:  Uwe Dassler (GDR)
 1992:  Yevgeny Sadovyi (EUN)
 1996:  Danyon Loader (NZL)
 2000:  Ian Thorpe (AUS)
 2004:  Ian Thorpe (AUS)
 2008:  Park Tae-hwan (KOR)
 2012:  Sun Yang (CHN)
 2016:  Mack Horton (AUS)
 2020:  Ahmed Hafnaoui (TUN)
 2024:  Lukas Märtens (GER)
Category:Swimming at de 2024 Summer Olympics
Category:Men's 400 metre freestyle
Category:Men's events at de 2024 Summer Olympics