His dam was Fairday, a daughter of another Hall of Fame inductee, Fair Play.
[1] Triplicate was purchased as an unsuccessful three-year-old for $6,000 by actor/dancer Fred Astaire who owned Blue Valley Ranch, a Thoroughbred breeding farm in the San Fernando Valley.
Under veteran trainer Clyde Phillips, Triplicate had his best year in 1946 at age five.
In March he defeated Howard Hawks' horse and won the 1+1⁄2-mile San Juan Capistrano Handicap in track record time and on July 27 beat the best horses on the West Coast in the $100,000 Hollywood Gold Cup.
Trainer Clyde Phillips died on December 17, 1946, and Triplicate's race conditioning was taken over by Lloyd Campion.