Prove Out to the eventual 1973 Horse of the Year. Prove Out also defeated Secretariat's stablemate, the 1972 Kentucky Derby winner and 1973 U.S. Champion Older Horse Riva Ridge, in the 1973 Jockey Club Gold Cup. In addition to his two memorable victories in 1973, Prove Out also ran track record times at Saratoga for 7 furlongs (1:21), and at Belmont Park for 1 miles (1:40). His Woodward Stakes time of 2:25 for 1 miles on an off track is the second fastest performance ever recorded for that distance at Belmont Park, behind only Secretariat's 2:24 record Belmont Stakes win. Prove Out's
Kentucky Derby Kentucky Derby Festival. Thunder Over Louisville—an airshow and fireworks display—generally begins the festivities in earnest two weeks prior to the Derby. Speed record: Margin of Victory: Most wins by a jockey: Most wins by a trainer: Most wins by an owner: Longest shot to win the Derby: Miscellaneous: designates a Triple Crown Winner.<br> designates a filly. Kentucky Derby The Kentucky Derby , is a horse race that is held annually in Louisville, Kentucky, United States, on the first Saturday in May, capping the two-week-long Kentucky Derby Festival. The race is a Grade I stakes race for three-year-old Thoroughbreds at a