A race goes for 18 laps maximum for Adult Kart races, and 16 laps maximum for Jr kart races, or 9 minutes maximum, whichever is sooner on the indoor Sprint Track, when it is wet outside. Alternatively, 8 laps maximum for adult kart races, and 6 laps maximum for Jr Kart races, or 9 minutes maximum, whichever is sooner on the combined Enduro Track, when it is dry outside.
Almost all races go the full distance before the time elapses. As soon as the first racer crosses the line the race is finished. Usually the group won’t be slowed to enter the pits until at least half a lap after the first racer crosses the finish line. This means if the supplementary racers are only half a lap behind the leader, they will finish the full laps at full speed also.