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. Javier Clavelo Robinson (21 August 2022). "Miller-Uibo delights home crowd as nine more records fall at NACAC Championships". World Athletics . Retrieved 31 August 2022. a b c d e "Mixed 4 × 400 m Relay Final Results" (PDF). World Athletics. 15 July 2022 . Retrieved 17 July 2022. 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]

dq2 The United States team ( Jerome Davis, Antonio Pettigrew, Angelo Taylor and Michael Johnson) originally won the 1999 World Championships, but was disqualified in 2009 after Pettigrew admitted to doping during the period. Our clear PVC strip doors are ideal to keep drafts out and retain heat in the winter, or to prevent insects and bugs during the summer. Part Number & Data Part Number Metres Relay Records – outdoor". International Association of Athletics Federations . Retrieved 1 September 2011. dq1 The Russian team ( Anastasiya Kapachinskaya, Tatyana Firova, Lyudmila Litvinova and Antonina Krivoshapka) originally finished third in the 2009 World Championships, but was disqualified after Kapachinskaya was found to have used performance-enhancing drugs. a Original silver medalists, Russia, and 4th place finishers, Belarus, were stripped of their results for doping offenses. Following reallocation, Jamaica were promoted to the silver medal, and Great Britain to the bronze. [37]a b c d "Mixed 4 x 400 Metres Relay - Round 1 Results Summary" (PDF). World Athletics. 19 August 2023 . Retrieved 19 August 2023. a b c d "4 × 400 m Relay Mixed − Final − Results" (PDF). IAAF. 29 September 2019 . Retrieved 3 October 2019. A USA team ran 2:56.35 in Sydney in 2000 but the performance was annulled due to the use of performance-enhancing drugs by Antonio Pettigrew x 400 Metres Relay Women − Final − Results" (PDF). IAAF. 6 October 2019 . Retrieved 8 October 2019. 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

Quincy Watts ran a 43.1 split and Steve Lewis (USA) ran a 43.4 split in the 1992 Barcelona Olympic 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. United States ( Justin Robinson (M), Rosey Effiong (W), Matthew Boling (M), Alexis Holmes (W)) 3:08.80 (2023)

See also: Men's 4 × 400 metres relay world record progression, Women's 4 × 400 metres relay world record progression, and Mixed 4 x 400 metres relay world record progression Men's Outdoor World Record [2] The P132 is a 3.50" 2-way full-range speaker rated at 20 watts RMS and designed for fanatics who need a quality factory replacement driver. Includes two speakers, integrated high-pass crossovers and mounting hardware. Sold in pairs (2 each). 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