Silks and Saddles(1929)

Jockey Johnny Spencer loses his job with Mrs. Calhoun for throwing a race. An adventuress named Sybil, who made Johnny hold back Mrs. Calhoun's horse, Lady, leaves him, and he becomes a racetrack bum. Johnny returns to Mrs. Calhoun's stable when the new jockey proves unable to manage Lady. Johnny wins the next race, thereby regaining Mrs. Calhoun's confidence and winning the love of her attractive daughter, Lucy.