400 metres

400 m is a common track running event. It is the longest common sprint distance. On a standard outdoor running track, it is exactly once around the track in the inside lane. This is the longest distance that is usually run in lanes all the way round. A successful runner will need an efficient stride and superior speed, and a small amount of non-fast twitch muscles to be competitive. For career 400 m runners this becomes a prolonged high speed sprint.

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The current men's world record is held by Michael Johnson, with a time of 43.18 seconds. The world indoor record holder is Kerron Clement, in 44.57 seconds. The reigning Olympic champions are Jeremy Wariner and Tonique Williams-Darling.

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400 metres related Images and Photos (experimental)

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