Prove Out (1969-1990) was an American thoroughbred racehorse who, under the training of H. Allen Jerkens, scored a 16:1 upset victory over Secretariat in the 1973 Woodward Stakes. Prove Out also defeated Secretariat’s stablemate, the 1972 Kentucky Derby winner Riva Ridge, in the 1973 Jockey Club Gold Cup.
- ↑ Whitney Tower (October 8, 1973). "This Man is Dangerous!". Sports Illustrated. http://vault.sportsillustrated.cnn.com/vault/article/magazine/MAG1087868/index.htm. Retrieved 2009-05-11.
- ↑ 2.0 2.1 Edward L. Bowen (2004). Legacies Of The Turf: A Century Of Great Thoroughbred Breeders. Eclipse Press. p. 45. ISBN ISBN 158150117X. http://books.google.com/books?id=i7ilgwjwtN4C&pg=PA45&dq=%22Prove+Out%22+%22jockey+club+gold+cup%22&ei=228HSuP2BoXGzASwqJHPCA&client=firefox-a.