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. 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. Women Note* Indicates athletes who ran only in the preliminary round and also received medals. 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. 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. 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. Notable splits Men Herb McKenley (Jamaica) ran a 44.6 split in the 1952 Helsinki Olympic final. Ron Freeman (USA) ran a 43.2 split in the 1968 Mexico Olympic final. Julius Sang (Kenya) ran a 43.6 split in the 1972 Munich Olympic final. Alberto Juantorena (Cuba) ran a 43.7 split in the 1977 IAAF World Cup event as part of the Americas team. Quincy Watts ran a 43.1 split and Steve Lewis (USA) ran a 43.4 split in the 1992 Barcelona Olympic final. 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. Mark Richardson (GBR) ran a 43.57 split and Davian Clarke (JAM) ran a 43.51 split in the 1997 Athens World Championship final. Jeremy Wariner (USA) ran a 43.10 split in the 2007 Osaka World Championship final. Jeremy Wariner (USA) ran a 43.18 split in the 2008 Beijing Olympic final. Michael Norman (USA) ran a 43.06 split in the 2018 NCAA West Preliminaries final. Women 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. Marita Koch (GDR) ran