A parlay combines multiple bets into one. All legs must win for the parlay to pay — and the payout grows with each leg added. Here's how parlays work and when they're useful.
A parlay is a single bet that combines two or more individual wagers. All legs must win for the parlay to pay out. The payout multiplies with each leg added — but so does the probability of losing.
Each winning leg rolls over to the next. The payout multiplies rather than adds.
Two-leg parlay at -110 each:
Sportsbooks pay less than the true odds — that's where the extra house edge comes from. A true fair parlay would pay around +285 on two -110 legs. The book pays +260. That gap is additional profit for the sportsbook.
The appeal is obvious: turn a $25 bet into $250 or more. Parlays feel like lottery tickets — small stakes, big dreams.
That psychology is exactly why sportsbooks love them. The house edge on parlays is significantly higher than on single bets.
Account profile maintenance: Placing small parlays signals square, recreational behavior to sportsbooks. This protects your account from sharp profiling, extending your access to bonuses.
Bonus bet parlays: A bonus bet placed on a parlay with a large final payout can be hedged on the last leg for significant guaranteed profit after earlier legs have won.
Parlay insurance promotions: "Get your money back if one leg loses" promotions turn a parlay into a hedgeable, positive-EV structure.
For the full breakdown of bet types, read our guide to how sports betting works.
This is part of our complete guide. Read the full breakdown for the complete strategy.
Read: How Sports Betting Works: A Beginner's Guide (2026) →