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
200 metres hurdles like this. Since it is a requirement, major championship meets have purchased a few sets of modern modified hurdles, which then creates the logistical problem of shipping these few hurdles between meets in order for the competitors to have an opportunity to race over proper hurdles. As a substitute, many older hurdle designs are easier to modify to get to the proper height and most facilities are less protective of the old, rusty hurdles in the junk pile. Also many training hurdles (used to teach smaller, youth beginners) will go to 27 inches and lower. After setting the world record