Parlay
A single bet combining two or more selections where all must win for the bet to pay out.
A parlay combines multiple individual bets (legs) into one wager. All legs must win for the parlay to pay out, but the odds are multiplied together, creating a much larger potential payout than betting each leg separately.
While parlays are exciting and offer big payouts, they are mathematically disadvantageous. The probability of hitting all legs drops rapidly as you add more selections. A 3-leg parlay at -110 per leg has only an 18.5% chance of winning, and the vig on each leg compounds.
Sportsbooks love parlays because they have a higher hold percentage than straight bets. Some professional bettors use parlays for correlated selections or to target specific market inefficiencies, but for most recreational bettors, straight bets offer better value.
Example
A 3-team parlay at -110 each pays approximately +596. Risk $100 to win $596. But the true fair odds would be +627, so the house edge on this parlay is higher than on single bets.
Related Terms
Teaser
A type of parlay where you get extra points on spreads or totals in exchange for lower odds.
Vig (Vigorish)
The commission a sportsbook charges on a bet, built into the odds.
Expected Value (EV)
The average amount you can expect to win or lose per bet over time.
Correlated Parlay
A parlay combining bets whose outcomes are statistically linked, increasing the true probability of both hitting.
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