Long-distance running confined area. Early tracks were usually on flattened earth or were simply marked areas of grass. The style of running tracks became refined during the 20th century: the oval running tracks were standardised to 400 metres in distance and cinder tracks were replaced by synthetic all-weather running track of asphalt and rubber from the mid-1960s onwards. It was not until the 1912 Stockholm Olympics that the standard long-distance track events of 5000 metres and 10,000 metres were introduced. Long-distance road running competitions are mainly conducted on courses of paved or tarmac roads, although major events often finish on the track
4 × 200 metres relay would break into lane one and make a third exchange in lane one of the second standard 4x100 metres relay zone. Indoors, the event is popular because each leg is one lap of a standard 200 metre indoor track. The men's world record was set at the inaugural IAAF World Relay Championships in Nassau, Bahamas. The record was set by a Jamaican team consisting of Nickel Ashmeade, Warren Weir, Jermaine Brown and Yohan Blake in a time of 1:18.63. The women's world record is 1:27.46, set by a squad called Team USA "Blue" LaTasha Jenkins, LaTasha Colander-Richardson, Nanceen Perry, and