As runners have a running start, split times cannot be compared to individual 400 m performances. Internationally, the U.S. men's team has dominated the event, but have been challenged by Jamaica in the 1950s and Britain in the 1990s. The current men's Olympic champions are from the United States.
According to the IAAF rules, world records in relays can only be set if all team members have the same nationality.
Note: * Indicates athletes who ran in preliminary rounds and also received medals.
Note: * Indicates athletes who ran in preliminary rounds and also received medals.
Note: * Indicates athletes who ran only in the preliminary round and also received medals.
Note: * Indicates athletes who ran only in the preliminary round and also received medals.
Note: * Indicates athletes who ran only in the preliminary round and also received medals.
Note: * Indicates athletes who ran only in the preliminary round and also received medals.
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Roy Jordan (10 March 2018). "Norman breaks world indoor 400m record at NCAA Indoor Championships". IAAF. Retrieved 12 March 2018. https://www.iaaf.org/news/report/ncaa-indoor-championships-2018-norman-400-wor
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"Stats | World Athletics | World Athletics". worldathletics.org. Retrieved 10 August 2024. https://worldathletics.org/records/by-discipline/relays/4x400-metres-relay/outdoor/mixed
Awaiting ratification
Awaiting ratification
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Final results https://media.aws.iaaf.org/competitiondocuments/pdf/6019/AT-4X4-M-f----.RS6.pdf
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Final results https://media.aws.iaaf.org/competitiondocuments/pdf/6019/AT-4X4-W-f----.RS6.pdf
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Final results https://media.aws.iaaf.org/competitiondocuments/pdf/6019/AT-4X4-W-f----.RS6.pdf
Final results https://iaafmedia.s3.amazonaws.com/competitiondocuments/pdf/4952/AT-4X4-W-f----.RS6.pdf?v=347621854
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Final results https://media.aws.iaaf.org/competitiondocuments/pdf/6019/AT-4X4-M-f----.RS6.pdf
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"Track and Field Olympians to be Recognized". University Park, Pennsylvania. 4 October 2012. Retrieved 14 August 2016. Blake, a member of Penn State's NCAA Champion 4x400 in 2008, also had a successful London experience, earning a bronze medal as a member of Jamaica's 4x400 relay pool. http://www.gopsusports.com/sports/c-track/spec-rel/100412aaa.html
https://www.reuters.com/article/us-olympics-rio-doping-russia/russia-stripped-of-beijing-2008-4x400m-womens-silver-medal-idUSKCN10U242 https://www.reuters.com/article/us-olympics-rio-doping-russia/russia-stripped-of-beijing-2008-4x400m-womens-silver-medal-idUSKCN10U242
https://www.bbc.com/sport/olympics/38825752 https://www.bbc.com/sport/olympics/38825752
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