Garrison's Finish (1923)

Jockey Billy Garrison is framed and suspended for throwing a race. Depressed, he goes to a bar and eventually gets into a fight. He loses his memory and is taken to the home of pretty young Sue Desha, who gets him a job as a jockey for her father, Col. Desha. Unfortunately, the man who framed Billy, named Crimmins, finds out he's working for Sue's father and reveals Billy's past to the Colonel. Complications ensue.