4 × 100 metres relay a cinder track at the 1964 Tokyo Games. The women's world record stands at 40.82 seconds, set by the United States in 2012 at the London Olympics. According to the IAAF rules, world records in relays can only be set if all team members have the same nationality. 4 × 100 metres relay The 4 × 100 metres relay or sprint relay is an athletics track event run in lanes over one lap of the track with four runners completing 100 metres each. The first runners must begin in the same stagger as for the individual 400 m race. A
Roger Bannister running track was opened by John Lowe, the Vice-Chancellor of the University of Oxford. Since 1950, the running track has been modernised on several occasions. In 1976 work started on the track to convert the track to a synthetic track, and it opened on 4 May 1977, and was again resurfaced in 1989. By 2005, the track again was of poor quality. Two years later Lord Coe, the Chairman of the London Organising Committee for the Olympic Games and Paralympic Games, opened the newly refurbished running track on 10 May 2007. The running track was renamed the Roger Bannister running track. Coe