Key dates: Aug. 2, team sprint finals; Aug. 3, team pursuit finals; Aug. 5, omnium finals; Aug. 6, sprint finals. Venue: Olympic Park Big story: The host nation hopes to earn up to 10 cycling medals, and the large majority of them are expected on the track. Chris Hoy of Scotland (above) won three gold medals in Beijing and hopes to repeat that success. Top U.S. prospects: Bobby Lea has the U.S. omnium spot, and Jimmy Watkins of Bakersfield will represent the U.S. for the men's sprint, though neither are likely medal contenders. Others to watch: Gregory Bauge and Kevin Sireau of France could win multiple medals, and Germany's sprint trio -- Robert Forstemann, Max Levy and Stefan Nimke -- have said they will challenge British supremacy. Little-known fact: Track cycling has been in every Olympics except 1912, when Stockholm was unable to build a velodrome.