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
1910 Belmont Stakes 7 and the 1910 Kentucky Derby three days later on May 10. The Belmont was run twenty days after the Derby. The 1919 Belmont Stakes would mark the first time the race would be recognized as the third leg of a U.S. Triple Crown series. As a result of New York State's Hart-Agnew anti-betting legislation, which contained penalties allowing for fines and up to a year in prison, racing ended in 1910. For the next two years racetracks in New York were closed. The Belmont Stakes would not be run again until 1913. 1910 Belmont Stakes The 1910 Belmont Stakes