The 1931 Kentucky Derby was the 57th running of the Kentucky Derby. The race took place on May 16, 1931.[1] Horses Equipoise, Up, and Don Leon scratched before the race. Twenty Grand's winning time set a new Derby record (later broken).[2] The winner was owned and bred by the Greentree Stable of Helen Hay Whitney. It marked the fourth time in the Derby's history that a woman owned the winning horse and the second time that a woman was both owner and breeder.[3]