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
2012 United States Olympic Trials (track and field) that a leading athlete did not hold an "A" standard, or an athlete withdrew, the next highest finishing athlete with an "A" standard was selected instead. The trials for the men's and women's marathon were held January 14 in Houston and the trials for the men's 50 km race walk were held January 22 in Santee, California. The hammer throw competitions were held at the Nike facility in Beaverton, Oregon. Key: Key: 2012 United States Olympic Trials (track and field) The 2012 United States Olympic Trials for track and field were held at Hayward Field in Eugene, Oregon. Organized by