The California Oaks is an American Thoroughbred horse race held annually in February at Golden Gate Fields in Berkeley, California. Open to three-year-old fillies, it is contested on Tapeta Footings synthetic dirt over a distance of a mile and a sixteenth (8.5 furlongs). The event is an ungraded stakes race with a current purse of $75,000 and has been a prep race to the Triple Tiara of Thoroughbred Racing, including the Kentucky Oaks, the Black-Eyed Susan Stakes and Mother Goose Stakes.