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The Keirin races involved 5.5 laps of the track behind a motorcycle, followed by a 2.5 lap sprint to the finish. The tournament consisted of a semi-finals round, repechages and the finals. The top two cyclists in each semi-final advanced to the final, with the rest of the cyclists competing again in the repechage. Two of those cyclists advanced from the two repechage to the final as well, for a total of 6 finalists. The other riders competed in the 7th to 13th place classification race.