Question: are there any fillies in the 2019 derby?
Answer: Winning Colors (1988), Genuine Risk (1980) and Regret (1915) are the only fillies to win the Kentucky Derby. Each raced against males in advance of running in the Kentucky Derby. ... The H.P. Whitney entry of the filly Prudery (third) and the colt Tryster (fourth) was favored in 1921.