A mass-start race of 40km (160 laps) for men and 25km (100 laps) for women in the elite events. Points are scored in intermediate sprints held every 10 laps (five points for the winner, followed by three, two and one). 20 points is on offer for lapping the field. Tactics vary, with some riders sitting at the back to conserve energy and contest the intermediate sprints, while others try to gain a lap by breaking off the front and rejoining the back of the main bunch. The winner is the rider with the most points at the end of the race.