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
New Zealand Derby holds the record for the most Derby wins by a jockey. He scored his fifth Derby win aboard Habibi in 2013, breaking Robert Vance's previous record of four, and added a sixth victory with Rangipo in 2016. Note: the New Zealand Derby and the Great Northern Derby were combined into one race in 1973. Note: the New Zealand Derby and the Great Northern Derby were combined into one race in 1973. New Zealand Derby The New Zealand Derby is a set-weights Thoroughbred horse race for three-year-olds, run over a distance of 2,400 metres (12 furlongs) at Ellerslie Racecourse in Auckland,