 Since its inception, ten Santa Anita Derby winners have gone on to win the Kentucky Derby (shown in bold in the Winners section below), plus seven horses who lost at Santa Anita went on to triumph in Kentucky.In 1988, Winning Colors became the first and to date only filly to win both Derbies.Santa Anita Derby winners have also been successful in other Triple Crown races, with Affirmed sweeping the series in 1978.