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Please call us during normal business hours at 1-800-669-9899 (option #1) and be prepared with the following information: A Russian team of Yuliya Gushchina, Kseniya Ustalova, Marina Karnaushchenko and Aleksandra Fedoriva originally finished third in the 2012 World Indoor Championships, but was disqualified in 2019 after Gushchina was found to have used performance-enhancing drugs. [42] Women's 4×400m Relay Final Results" (PDF). World Athletics. 27 August 2023 . Retrieved 28 August 2023. A Russian team ran 3:18.82 in Beijing in 2008 but the performance was annulled due to the use of performance-enhancing drugs by Tatyana Firova 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.

Mark Richardson (GBR) ran a 43.57 split and Davian Clarke (JAM) ran a 43.51 split in the 1997 Athens World Championship final.United States ( Justin Robinson (M), Rosey Effiong (W), Matthew Boling (M), Alexis Holmes (W)) 3:08.80 (2023)

Roy Jordan (10 March 2018). "Norman breaks world indoor 400m record at NCAA Indoor Championships". IAAF . Retrieved 12 March 2018. 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 a b c d "Mixed 4 x 400 Metres Relay - Round 1 Results Summary" (PDF). World Athletics. 19 August 2023 . Retrieved 19 August 2023.

b Original silver medalists, Russia, were stripped of their medal for doping offenses. Following reallocation, Jamaica will be promoted to the silver medal, and Ukraine to the bronze. [38] https://www.reuters.com/article/us-olympics-rio-doping-russia/russia-stripped-of-beijing-2008-4x400m-womens-silver-medal-idUSKCN10U242 According to the IAAF rules, world records in relays can only be set if all team members have the same nationality. A USA team ran 2:56.60 in Philadelphia in 2000 but the performance was annulled due to the use of performance-enhancing drugs by Antonio Pettigrew 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.

A USA team of James Davis, Jerome Young, Milton Campbell and Tyree Washington originally won in the 2003 World Indoor Championships, but was disqualified after Young was found to have used performance-enhancing drugs. [40] Men's 4×400m Relay Final Results" (PDF). World Athletics. 27 August 2023 . Retrieved 29 August 2023.m men relay at the European Championships in Barcelona 2010 (Martyn Rooney (GBR), Thomas Schneider (GER), Kacper Kozłowski (POL), Jonathan Borlée (BEL), Vladimir Krasnov (RUS), Teddy Venel (FRA)) a b c d e f "Results - 4 x 400 Metres Relay Mixed - Final" (PDF). World Athletics. 19 August 2023 . Retrieved 19 August 2023.