Rillito Race Track opened in 1943 on Rukin Jelks’ stud farm. It is considered the birthplace of modern, formalized Quarter Horse racing. Features like the "photo finish" and straightway chute system were introduced at Rillito Park.

Thoroughbred racing began at the track in 1953. The track has been on the chopping block on and off since the 1980s, but the fans keep coming back. The old stables were demolished to make way for soccer fields. But the track, infield and grand stands come back to life each January.