Regret was a famous American thoroughbred racehorse and the first of three fillies to ever win the Kentucky Derby .
- (April 2, 1912 – April 11, 1934)
Sire Broomstick Grandsire Ben Brush Dam Jersey Lightning Damsire Hamburg Sex Filly Foaled 1912 Country United States Colour Chestnut Breeder Harry Payne Whitney Owner Harry Payne Whitney. Racing silks: Light Blue, white sash, brown cap. Trainer James G. Rowe, Sr. Record 11: 9-1-0 Earnings $35,093