Jason Kenny beats Matthew Glaetzer to take the sprint world title, Track World Championships 2016
The principle of the track sprint is clinically simple – two riders race off over three laps to see who is fastest.
In practice, the riders take part in what can seem a bizarre stalemate, watching each other carefully and waiting for the other to make the first move – until the sprint bursts into life in the closing stages.
The Olympics kick off with a 200m flying lap to establish qualifying times. The 18 fastest riders take part in the 1/16 finals, pairing off with the fastest against the slowest. Winners progress, while losers get the chance to compete in repechage rounds, until eventually eight riders remain for the best-of-three quarter finals.
The semi-finals decide who will compete in the gold medal final, and who will race off for bronze.