A parlay is a single bet that combines two or more wagers — every pick has to win for the parlay to pay, and the odds multiply as you add legs.
Each individual bet inside a parlay is called a leg. A three-team parlay has three legs. Every leg has to win. If even one loses, the entire bet loses. The appeal is the payout. Combining bets compounds the odds — a three-team parlay of -110 favorites pays around 6-to-1 instead of the roughly 0.9-to-1 you'd get on each single bet. Big return on small risk, in theory. The catch is that each added leg reduces your probability of winning. Two -110 bets each win about 48% of the time after juice. Chain them together and you win the parlay about 23% of the time. Payouts look big because the math is working against you.
Example
You build a three-team parlay: Lakers -4, Chiefs over 48.5, and Yankees moneyline. A $20 bet pays around $120 if all three hit. Lakers cover, Chiefs go over, but the Yankees lose. Your $20 is gone — the entire parlay loses.
What it means for your decision
Parlays are priced to look attractive but carry a much higher effective juice than single bets. Every added leg multiplies the book's edge. They can be entertainment, but they're rarely where long-term value lives. If you're treating betting as an exercise in finding mispriced games, parlays work against that — each leg has to be priced wrong, not just one. Your decision is always yours.
Frequently asked
How many legs can a parlay have?
Most books allow 2 to 12 or more. A 10-leg parlay of -110 favorites hits less than 1% of the time.
What's a same-game parlay?
A parlay where all legs come from a single game. Because the legs are correlated, books price them higher than standard parlays to protect their margin.
What happens if one leg pushes?
Most books drop that leg and reduce the parlay to the remaining legs at lower odds. A 3-team parlay with one push becomes a 2-team parlay.
Are parlays ever a smart bet?
Occasionally, when you've identified correlated outcomes or multiple genuinely mispriced games. But most parlays are entertainment math with a higher effective house edge.
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