What is a parlay? A parlay in sports betting is when a bettor makes multiple wagers (at least two) and ties them together into the same bet. If any of the bets in the parlay loses, the entire parlay loses. However, if all wagers win, the bettor gets a bigger payout. Related articles What are your House Rules for Sportsbook? How do I turn off login notifications? SUBMIT A SUPPORT REQUEST Why didn’t my registration go through? How do I sign up for a FireKeepers iCasino & Sportsbook account?