The UCI Track Cycling World Championships â Men's keirin is the world championship Keirin event held annually at the UCI Track Cycling World Championships. It was first held at the 1980 championships in Besançon, France. , Chris Hoy from Great Britain and Harrie Lavreysen from Netherlands have the most titles with four.
Hoy is the only man to win the World and Olympic titles in the same year in 2008 and 2012.