NFL Betting Guide: Parlays and Teasers Explained

Last Updated on October 2, 2026 3:56 pm by Erwin Noguera

A three-team parlay of standard -110 spreads pay +596.

The fair price for three-coin flips is +700.

That gap is not a rounding error. It is a 13% expected loss on every ticket, against roughly 4.5% on a single bet, and it gets worse with every leg you add.

This guide covers how parlays are priced, why the payout looks so much better than it is, what a teaser does differently, and the one teaser structure that has a genuine argument behind it.

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What a Parlay Actually Is

A parlay is a single bet that requires every leg to win. Miss one and the whole ticket loses, regardless of how the others finished.

The payout is calculated by multiplying the decimal odds of each leg together. A -110 bet is 1.909 in decimal. So:

• Two legs: 1.909 × 1.909 = 3.64 → +264
• Three legs: → 6.96 → +596
• Four legs: → 13.28 → +1,228
• Five legs: → 25.36 → +2,436

That is the entire mechanic. No special pricing, no bonus; the book simply multiplies.

The Table That Should End the Argument

Here is what each parlay pays against what it should pay if every leg were a true coin flip.

Read the right-hand column downwards. A single bet costs you 4.5% in expectation. A five-leg parlay costs you nearly 21% (more than four and a half times as much) for the same five opinions.

The house edge compounds with every leg because the vig compounds with every leg. You are not getting a worse price on each individual pick; you are paying the margin five times over instead of once.

This is why books promote parlays and not singles. A five-leg ticket is the most profitable product on board.

Why the Payout Looks So Big

Because the probability is small, and people price the reward without pricing the odds.

A five-leg parlay of even-money propositions wins once in 32 attempts, a 3.125% chance. The +2,436 payout feels enormous because 24-to-1 is a lot of money. It is also less than the 31-to-1 that would make the bet fair.

The discrepancy is invisible unless you calculate it, and almost nobody does. That is the entire business model.

Correlated Legs and Same Game Parlays

Same-game parlays are the fastest-growing product in sports betting and the worst-priced.

Legs within one game are correlated: if a quarterback throws for 350 yards, his team probably scored, which makes the Over more likely and his receiver’s yardage prop more likely. Those outcomes are not independent.

Books know this and price it in. A standard parlay multiplies independent probabilities. A same-game parlay applies a correlation adjustment, and that adjustment is always made in the house’s favor.

The result is that an SGP typically carries a larger margin than an equivalent multi-game parlay, which already carried more than a single. You are paying for the convenience of betting on one game in several ways.

If you want correlation to work for you, it has to be correlation the book has underpriced. That is a much harder thing to find than it sounds.

What a Teaser Actually Does

A teaser is a parlay where you move each spread in your favor, in exchange for a worse price.

The standard NFL teaser moves each leg 6 points. A -7 favorite becomes -1. A +2.5 underdog becomes +8.5.

You still need every leg to win. The six points make each leg more likely; the reduced payout makes the ticket cost more.

A two-team six-point teaser typically prices around -120, though it varies by book. That is the number everything below depends on.

The Break-Even Number

This is the single most useful calculation in this guide.

At -120, you need 54.55% to break even on the bet as a whole. Because both legs must win and they are independent, you need:

√0.5455 = 73.9%

Each leg must win 73.9% of the time for a two-team six-point teaser at -120 to break even.

At -110, the requirement is 72.4%. At -130 it rises to 75.2%.

That is a very high bar. An ordinary NFL spread wins about 50% of the time. Adding six points must lift it past 73%, and whether it does depend entirely on which six points you add.

The Only Teaser Structure with a Real Argument

Not all six points are equal, because NFL margins cluster.

More games finish three points apart than at any other margin, and seven is second. A point that crosses one of those numbers is worth far more than a point that crosses eight or eleven.

The structure known as the Wong teaser takes legs that cross both 3 and 7:

• Favorites of -7.5 to -8.5, teased down to -1.5 to -2.5
• Underdogs of +1.5 to +2.5, teased up to +7.5 to +8.5

Those are the only ranges where six points cross both key numbers. Teasing a -10 favorite to -4 crosses seven but not three. Teasing a +4 dog to +10 crosses seven but starts above three. Neither captures the same probability.

Two honest caveats. This structure was more profitable before it became widely known; books have repriced teasers, and some now charge -130 or worse, which pushes the break-even requirement to 75.2% and erases most of the historical edge. And it still requires both legs to win. The edge, if it exists, is thin and long-run.

This Week’s Board as an Example

Week 4 happens to offer several textbook legs, which is unusual.

Underdogs in the +1.5 to +2.5 range, the ones that tease up through both numbers to +7.5 or +8.5:

• Giants +1.5 (vs Arizona) → +7.5
• Eagles +1.5 (vs the Rams) → +7.5
• Cowboys +2.5 (at Houston) → +8.5
• Jaguars +2.5 (at Cincinnati) → +8.5
• Browns +2.5 (vs Pittsburgh) → +8.5

Favorites in the -7.5 to -8.5 range: the board is thin this week. Buffalo at -7 sits just below the range; teasing them to -1 crosses both numbers but starts on seven rather than above it, which is a materially different proposition.

And the large favorites do not qualify at all. Baltimore -11.5 teases to -5.5 and Minnesota -10 teases to -4; neither crosses three, which is the point of the exercise.

The Mistakes That Lose Parlays and Teasers

Treating a parlay as a way to “boost” a good bet. If you like a side, bet on it. Attaching three other opinions to it does not improve the first one: it multiplies the margin you pay on all four.

Adding a leg you do not actually like. The most common parlay error is needing a fourth game to hit a payout target. That leg is a coin flip you did not want, and it has veto power over the other three.

Betting teasers outside the key-number ranges. A six-point teaser on a -10 favorite is just a worse-priced parlay. If the points do not cross 3 and 7, you have paid for a reduced payout and received very little.

Ignoring the teaser price. At -110, you need 72.4% per leg. At -130, you need 75.2%. That three-point difference in requirement is the difference between a historically viable structure and a losing one, and most bettors never check which price they are getting.

Same-game parlays as a default. The correlation adjustment is always in the house’s favor. Convenience is the product being sold.

And chasing a near-miss. Four legs landing and one missing feel like bad luck. It is the mathematically expected outcome of a bet that wins once in sixteen attempts.

Staking

Treat every parlay as entertainment spending, not as a position. If you would not stake the amount on a single game, do not stake it across five.

Use the formula and then halve it. Budget ÷ 200 gives your unit for straight bets. For parlays, half a unit is plenty: the variance is enormous, and the expected return is poor.

Never parlay to recover. A losing week and a five-leg ticket is the most reliable way to turn a bad month into a lost bankroll. The math moves against you at exactly the moment you need it to move for you.

And cap the legs. Two or three is a bet. Five is a lottery ticket priced worse than one.

The Bottom Line

A parlay is not a different kind of bet. It is the same bets with the margin charged repeatedly.

Two legs cost you 8.9%. Three cost 13%. Five cost almost 21%. Those numbers are fixed, knowable, and have nothing to do with how good your picks are.

A teaser is the one multi-leg structure with a defensible argument, and only in a narrow form: two legs, six points, crossing both 3 and 7, at a price of -120 or better. Outside those conditions, it is a parlay wearing a different name.

If you want the big payout, understand that you are buying entertainment at roughly four times the cost of a straight bet. That is a legitimate thing to buy. Just do not confuse it with a strategy.