Age Restrictions The Site is intended for persons who are 18 or older. If you are under 18, or not of legal age to form a binding agreement, you may not access or use the Site. What is the age requirement to play at Presque Isle Downs & Casino? You must be at least 21 years of age to play on the casino floor and 18 years of age to bet on the horse races. How many games does Presque Isle Downs & ..