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
2016 United States Olympic Trials (track and field) 2016 United States Olympic Trials (track and field) The 2016 United States Olympic Trials for track and field were held at Hayward Field in Eugene, Oregon. Organized by USA Track and Field, the ten-day competition lasted from July 1 to July 10 and served as the national championships in track and field for the United States. The results of the event determined qualification for the American Olympic team at the 2016 Summer Olympics, to be held in Rio de Janeiro. Provided they had achieved the Olympic standard, the top three athletes gained a place on the Olympic team. In the