Keirin features speed, strength and courage. It is raced over a distance of 1,500 meters (6 laps) with a maximum field of seven riders. A derny paces the field over the first 750 meters, starting off at 30km/h and bringing the riders up to 50km/h. Riders must take their positions determined by the draw, directly behind the derny for at least the first lap. No cyclist is permitted to pass the moped, which departs with 3 laps remaining, and then the battle begins.