NFL Bet Line
A parlay combines multiple picks onto a single ticket — and all of them must win, or the whole thing loses. That's the deal. Win them all and you collect considerably more than you would have betting each game separately. Lose one leg and you're tearing up the ticket. Before you build one, you need to understand exactly how the math works, leg by leg.
What is the starting point for parlay math?
The standard pricing on each side of an NFL spread is -110, meaning you wager $110 to profit $100. In decimal format — which is what makes parlay multiplication easy — -110 converts to approximately 1.91. Every leg you add gets multiplied against that number. The sportsbook's vig is already baked into that 1.91, which is why parlays pay less than true odds would suggest. For a deeper look at where that number comes from, read What Is Vig in NFL Betting and How Much Does the Sportsbook Take?
How do you calculate a parlay payout leg by leg?
Start with your wager. Multiply it by 1.91 for the first leg. Take that result and multiply by 1.91 again for the second leg. Repeat for every additional leg. Then subtract your original stake to find the profit.
| Legs | Decimal Multiplier | $100 Wager Returns | Approximate Profit |
|---|---|---|---|
| 2 | 1.91 × 1.91 = 3.65 | $364.81 | ~$264 |
| 3 | 3.65 × 1.91 = 6.97 | $696.98 | ~$597 |
| 4 | 6.97 × 1.91 = 13.32 | $1,331.83 | ~$1,232 |
| 5 | 13.32 × 1.91 = 25.43 | $2,543.80 | ~$2,444 |
The numbers get big fast. So does the difficulty. Each leg you add multiplies not just the payout but the number of ways you can lose. One wrong call and every dollar is gone.
Why does the payout grow but the edge shrink?
Because the vig compounds with each leg. At -110, the sportsbook holds a theoretical edge on every side. String four of those together and that edge stacks four times over. The parlay pays you more in raw dollars, but the probability of hitting all legs drops sharply while the book's margin keeps growing. Understanding the spread behind each leg is essential — see How the NFL Point Spread Works — and How to Bet It before you build a ticket.
What happens to your payout if one leg pushes?
A push — when the final score lands exactly on the spread number — doesn't kill your parlay outright, but it does reduce it. Most sportsbooks drop that leg and recalculate the payout as if you'd built a one-leg-shorter ticket. A four-leg parlay with one push pays like a three-leg parlay. That's better than a loss, but it's not the ticket you built. Get the full rules at What a Push Does to Your NFL Parlay Ticket — and How Sportsbooks Handle It.
Where does this fit in the bigger picture of parlay betting?
The math here is the foundation. Once you have it, you can price any parlay yourself before you walk up to the window — or tap the screen. For everything else, from how legs work to the full payout structure, start at NFL Parlay Betting Explained — Legs, Payouts, and What a Push Does to Your Ticket. No parlay guarantees a return. Availability of parlay wagering depends on your state's sports betting laws; confirm legality in your jurisdiction before placing any bets.
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