Planet Of The Apes 1974 s1 e 9 The Horse Race

Virdon agrees to race a chimpanzee Prefect's horse against Urkos best horse, in exchange for a condemned boy's freedom. Urko has never lost a race, but of course, as Virdon finds out, Urko doesn't play fair. Despite Urko's treachery and cheating, Virdon prevails in the end.