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
One Lap of America One Lap of America The Tire Rack Brock Yates' One Lap of America is a motorsports event in the United States that has been held since 1984. It is the successor to the Cannonball Baker Sea-To-Shining-Sea Memorial Trophy Dash, an underground auto race of the 1970s. The original premise for both is to drive cross-country, but the One Lap of America respects speed limits. Both events are the creation of automotive journalist Brock Yates. Competition occurs as time trials held at various race tracks around the country. The competitors drive from race track to race track, (often driving 24 hours