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
Track and field the 1500 and mile events. Beyond the short distances of sprinting events, factors such as an athlete's reactions and top speed becomes less important, while qualities such as pace, race tactics and endurance become more so. There are three common long distance running events in track and field competitions: 3000 metres, 5000 metres and 10,000 metres. The latter two races are both Olympic and World Championship events outdoors, while the 3000 m is held at the IAAF World Indoor Championships. The 5000 m and 10,000 m events have their historical roots in the 3-mile and 6-mile races. The 3000 m