Sir Jason Francis Kenny, is an English former track cyclist, specialising in the individual and team sprints. Kenny is the holder of most Olympic gold medals (7) and medals (9) for a British athlete. Kenny's seven Olympic gold medals place him joint 15th by reference to gold medals won in the Summer Olympic games since 1896. He is the single holder of the records for both most Olympic golds and Olympic medals for a cyclist.
Kenny (front) and Chris Hoy during the team sprint at the 2012 Olympic Games
Keirin – literally "racing cycle" – is a form of motor-paced cycle racing in which track cyclists sprint for victory following a speed-controlled start behind a motorized or non-motorized pacer. It was developed in Japan around 1948 for gambling purposes and became an official event at the 2000 Olympics in Sydney, Australia.
Keirin in Colwood, British Columbia, July 2006
The entrance and grandstand at the Iwaki-Taira Velodrome in Iwaki, Fukushima
Start of a race at Tachikawa Velodrome in Tokyo. Riders start from the blocks and pace up to speed behind the pacer, wearing purple and orange. A referee observes the start in the tower to the right.
During a race at Omiya Velodrome in Saitama, the nine racers form a line behind the pacer as they go around a corner.