400 metres hurdles 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 so that they fall forward if bumped into with sufficient force, to prevent injury to the runners. Although
Athletics at the 1968 Summer Olympics – Men's 400 metres hurdles then John Sherwood edged past him at the line. The men's 400m hurdles competition started with four heats, where the four fastest runners from each race qualified to one of the two semifinals groups. The top four competitors from each semifinals group advanced to the final. Prior to the competition, the existing World and Olympic records were as follows. Heat 1 Heat 2 Heat 3 Heat 4 Heat 1 Heat 2 Athletics at the 1968 Summer Olympics – Men's 400 metres hurdles The Men's 400 metres hurdles competition at the 1968 Summer Olympics in Mexico City, Mexico took place on