400 metres hurdles technique needed to compete. As of August 2018 !Rank !Time !Athlete !Country !Date !Venue !Ref !1 !2 !rowspan=2|3 400 metres hurdles The 400 metres hurdles is a track and field hurdling event. The event has been on the Olympic athletics programme since 1900 for men and since 1984 for women. On a standard outdoor track, 400 metres is the length of the inside lane, once around the stadium. Runners stay in their lanes the entire way after starting out of the blocks and must clear ten hurdles that are evenly spaced around the track. The hurdles are positioned and weighted
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