Rex says
The fast lane for the math you almost remember from school. Type the numbers, get the answer, move on with your day.
Try a scenario
Click to load — tweak from there.Inputs
Result
Break-even win rate per leg
72.4%
Estimated full-ticket win probability
36.0%
Profit if ticket wins
$90.91
Expected value at your estimate
-$31.27
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One click, a permanent link with your numbers baked in.
How to use this
- 1Enter number of legs.
- 2Enter teaser/pleaser payout (american).
- 3Enter stake ($).
- 4Enter your estimated per-leg win rate (%).
- 5Read your break-even win rate per leg on the right — it updates as you type.
- 6Hit Share to keep the scenario or send it to someone.
About this calculator
A teaser lets you move the spread or total in your favor on multiple legs (commonly 6, 6.5, or 7 points in the NFL) in exchange for reduced payout odds compared to a straight parlay. A pleaser does the opposite — you move the line against yourself for a much bigger payout, essentially betting a worse number for a lottery-ticket-style return. Both are two-team-minimum combo bets that live or die on every leg hitting. This calculator takes the number of legs, the points moved, and the payout odds your book offers for that teaser/pleaser tier, then computes the break-even win rate per leg needed to profit, so you can judge whether the discounted odds are worth the extra points. The classic trap is the 'Wong teaser' concept, crossing key numbers like 3 and 7 in the NFL with a 6-point teaser, which meaningfully improves true win probability per leg — this calculator doesn't know which numbers you're crossing, so pair it with actual key-number research rather than betting teasers blindly on any two games.
Worked example
Using the values the calculator loads with:
Inputs
- Number of legs: 2
- Teaser/pleaser payout (American): -110
- Stake: 100 $
- Your estimated per-leg win rate: 60 %
Results
- Break-even win rate per leg: 72.4%
- Estimated full-ticket win probability: 36.0%
- Profit if ticket wins: $90.91
- Expected value at your estimate: -$31.27
What each field means
Inputs
- Number of legs
- The number of legs used in the calculation. Starts at 2 so you have a working example on load. Accepted range: 2–10.
- Teaser/pleaser payout (American)
- The teaser/pleaser payout (american) used in the calculation. Starts at -110 so you have a working example on load.
- Stake ($)
- The stake used in the calculation, measured in $. Starts at 100 $ so you have a working example on load.
- Your estimated per-leg win rate (%)
- The your estimated per-leg win rate used in the calculation, measured in %. Starts at 60 % so you have a working example on load. Accepted range: 1–99 %.
Results
- Break-even win rate per leg
- Returned as a percentage and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Estimated full-ticket win probability
- Returned as a percentage. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Profit if ticket wins
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Expected value at your estimate
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
Why do teasers pay less than a straight parlay?
Because moving the spread in your favor raises each leg's true win probability, so the book compensates by cutting the payout odds. A standard 2-team 6-point NFL teaser often pays around -110 to -120 instead of the roughly +260 a straight 2-team parlay at -110 legs would pay, since teaser legs are individually much more likely to hit.
What is a 'Wong teaser'?
Named after gambling author Stanford Wong, it refers to using a 6-point teaser specifically to move a spread across the NFL's most common margins of victory — 3 and 7 points. Teasing a -8.5 favorite to -2.5, or a +1.5 underdog to +7.5, crosses both key numbers and meaningfully boosts true win probability beyond what a generic 6-point move on a random line does.
Are pleasers ever a good bet?
Pleasers require every leg to beat a worse number than the original line for a much bigger payout, which mathematically makes them a longshot bet with high variance and typically negative expected value unless you have a specific, strong reason to believe your teams beat the tougher numbers. Treat pleasers as entertainment bets, not core strategy.
How many legs is optimal for a teaser?
Two-leg teasers, especially Wong teasers on key numbers, have the best documented track record historically. Adding legs increases payout but multiplies risk — needing all 5 or 6 legs to hit even at improved individual probabilities usually pushes expected value back toward breakeven or negative, since one weak leg sinks the whole ticket.
Accuracy and limitations
- Results are rounded for display; the underlying calculation keeps full precision.
- Very large or very small inputs may hit floating-point limits in the browser.
- Inputs outside the accepted range are clamped rather than rejected.
Related tools
Expected Value (EV) Bet Calculator
Find the dollar EV of a wager given your true win probability.
Round Robin Parlay Calculator
See combos, total stake, and payout for a round robin of multiple bets.
Break-Even Win Rate Calculator (-110 and Beyond)
The win percentage you need at any odds just to break even.
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). Teaser & Pleaser Math Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/teaser-pleaser-calculator
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/teaser-pleaser-calculator" target="_blank" rel="noopener">Teaser & Pleaser Math Calculator — RevenueLab</a> (2026).</p>
Source: [Teaser & Pleaser Math Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/teaser-pleaser-calculator) (2026).