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 2004 Summer Olympics – Men's 110 metres hurdles 1 January 2003 to 9 August 2004. For the men's 110 metres hurdles, each National Olympic Committee was permitted to enter up to three athletes that had run the race in 13.55 seconds or faster during the qualification period. If an NOC had no athletes that qualified under that standard, one athlete that had run the race in 13.72 seconds or faster could be entered. Qualification rule: The first four finishers in each heat (Q) plus the next eight fastest overall runners (q) qualified. Wind: +1.5 m/s Wind: +1.8 m/s Wind: +1.3 m/s Wind: −1.3 m/s Wind: +0.8 m/s Wind: