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
2012 United States Olympic Trials (track and field) that a leading athlete did not hold an "A" standard, or an athlete withdrew, the next highest finishing athlete with an "A" standard was selected instead. The trials for the men's and women's marathon were held January 14 in Houston and the trials for the men's 50 km race walk were held January 22 in Santee, California. The hammer throw competitions were held at the Nike facility in Beaverton, Oregon. Key: Key: 2012 United States Olympic Trials (track and field) The 2012 United States Olympic Trials for track and field were held at Hayward Field in Eugene, Oregon. Organized by