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dq3 The Russian team ( Yuliya Gushchina, Tatyana Firova, Kseniya Ryzhova and Antonina Krivoshapka) originally won in the 2013 World Championships, but was disqualified after Krivoshapka was found to have used performance-enhancing drugs. Mark Richardson (GBR) ran a 43.57 split and Davian Clarke (JAM) ran a 43.51 split in the 1997 Athens World Championship final. dq1 The United States team ( Jerome Young, Antonio Pettigrew, Chris Jones and Tyree Washington) originally won the 1997 World Championships in a time of 2:56.47 minutes, but was disqualified in 2009 after Pettigrew admitted to doping during the period.

Lewis Davey, Laviai Nielsen, Rio Mitcham and Yemi Mary John crossed the line in 3:11.06 for the Brits, while Czechia's Matěj Krsek, Tereza Petrzilkova, Patrik Šorm and Lada Vondrova came home in 3:11.98 - both times new national records for each team. a b c d "4 × 400 m Relay Mixed − Final − Results" (PDF). IAAF. 29 September 2019 . Retrieved 3 October 2019.Alfred, Garland and Wilson threaten world records at NCAA Indoor Championships". World Athletics. 12 March 2023 . Retrieved 23 March 2023.

dq5 The Russian team ( Maksim Dyldin, Lev Mosin, Sergey Petukhov and Vladimir Krasnov) originally finished third in the 2013 World Championships, but was disqualified after Dyldin was found to have used performance-enhancing drugs. Metres Relay Records – outdoor". International Association of Athletics Federations . Retrieved 1 September 2011. 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. A USA team of Milton Campbell, Leonard Byrd, Trinity Gray and Jerome Young originally finished second in the 2001 World Indoor Championships, but was disqualified after Young was found to have used performance-enhancing drugs. [39]

x 400m Mixed Relay Heat 1 - 2020 Olympics" (PDF). Archived (PDF) from the original on 30 July 2021. According to the IAAF rules, world records in relays can only be set if all team members have the same nationality. Main article: 4 × 400 metres relay at the World Championships in Athletics Men [ edit ] Championships

A USA team ran 2:56.47 in Athens in 1997 but the performance was annulled due to the use of performance-enhancing drugs by Antonio Pettigrew Marita Koch ( GDR) ran a 47.70 split in Erfurt 1984, a 47.9 split in the 1982 European Championship final, and a 47.9 split at the 1985 Canberra World Cup.Butch Reynolds ran a 43.23 split and Michael Johnson (both USA) ran a 42.91 split in the 1993 Stuttgart World Championship final; the USA team's final time of 2:54.29 is the current world record. a b "All-time women's best 4 × 400m Relay". alltime-athletics.com. 13 August 2017 . Retrieved 13 August 2017. A USA team ran 2:54.20 in Uniondale in 1998 but the performance was annulled due to the use of performance-enhancing drugs by Antonio Pettigrew It left the USA's Holmes free to cross the line first and claim not only a gold medal but a new world record.

Please call us during normal business hours at 1-800-669-9899 (option #1) and be prepared with the following information: A Jamaican team of Bobby-Gaye Wilkins, Clora Williams, Davita Prendergast and Novlene Williams-Mills originally finished third in the 2010 World Indoor Championships, but was disqualified after Wilkins was found to have used performance-enhancing drugs. [41] a b c d e f g h "4 x 400m Mixed Relay Final - 2020 Olympics" (PDF). Archived (PDF) from the original on 31 July 2021. Jarmila Kratochvílová ( CZE) ran a 47.6 split in the 1982 Athens European Championship final, a 47.75 split in the 1983 Helsinki World Championship final, and a 47.9 split in the 1983 Europa Cup in London.

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A Russian team of Svetlana Pospelova, Natalya Nazarova, Kseniya Vdovina and Tatyana Firova originally finished second in the 2010 World Indoor Championships, but was disqualified after Firova was found to have used performance-enhancing drugs. [41] Men's 4 × 400 m Relay Final Results" (PDF). olympics.com. 7 August 2021. Archived from the original (PDF) on 7 August 2021 . Retrieved 26 August 2021.