The Mountain Bike competitions at London 2012 are mass start events. Riders are seeded into a starting grid, according to their world ranking, and the first to cross the finish line is the winner.
Find out more about the Mens' Cycling - Mountain Bike and Women's Cycling - Mountain Bike competitions at the Olympic Games on the International Olympic Committee website.
Inspire a generation
Olympic Games 27 July - 12 August
Official London 2012 website
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Last gold medal
