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
Haile Gebrselassie needed a sub-4-minute final 1,600 metres for the record. With one lap to go and in great pain, Haile took off, recording a final lap of 56.77 seconds and a final 1,600 metres of 3:59.36 (= 4:00.96-mile) to race to a 12:39.36 world record. In 1999, Haile starred as himself in the movie "Endurance". The film chronicled his quest to win Olympic gold in the 10,000 metres in Atlanta. On the track, he won a 1500/3000 metres double at the World Indoor Track Championships, defended his Outdoor World Track Championships 10,000 metres title, and remained undefeated in all his races