Teaser bets explained with key numbers
A teaser moves two or more point spreads in your favour for a lower payout. How the price sets the win rate each leg needs, and why 3 and 7 matter.
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A teaser is a bet on two or more point spreads where you move every line in your favour by a fixed amount, usually six points in the NFL, and accept a lower payout in return. All legs must win. Whether that is a good trade depends on two things only: which numbers your six points cross, and the price of the ticket. Six points that carry a line across 3 and 7 are worth far more than six points anywhere else.
How a teaser works
Take two NFL spreads: Team A −8 and Team B +2. A two-team, six-point teaser turns them into Team A −2 and Team B +8. Team A now only has to win by 3 or more; Team B can lose by up to 7. Both must cover for the ticket to pay. A common price for this bet is −120, which is 1.83 in decimal odds: stake 120 to win 100. If you are new to the line itself, start with point spread betting explained.
The price sets the bar for each leg
Because both legs must win, the win rate each leg needs is the square root of the ticket's break-even. That assumes the two games are independent.
| Teaser price | Decimal | Ticket must win | Each leg must win |
|---|---|---|---|
| −110 | 1.91 | 52.4% | 72.4% |
| −120 | 1.83 | 54.5% | 73.9% |
| −130 | 1.77 | 56.5% | 75.2% |
| −135 | 1.74 | 57.4% | 75.8% |
The step from −110 to −135 asks each leg to win 3.4 points more often. On a bet like this, that is most of any edge. A normal spread bet covers around half the time, so the six points must do a lot of work.
Why 3 and 7 decide it
NFL scores come in field goals and converted touchdowns, so final margins pile up on 3 and 7. In 7,276 NFL games from 1999 to 2025, TheSharpBook found 15.1% ended on exactly 3 points and 9.0% on exactly 7. We set out the full table in key numbers in American football: 3 and 7.
That is why the classic "Wong" teaser only uses two windows:
| Leg | Original spread | After six points | Crosses |
|---|---|---|---|
| Favourite | −7.5 to −8.5 | −1.5 to −2.5 | 7 and 3 |
| Underdog | +1.5 to +2.5 | +7.5 to +8.5 | 3 and 7 |
A favourite at −9 teased to −3 lands on 3 rather than past it, so a 3-point win is a push, not a win. An underdog at +3 teased to +9 had already crossed 3 before you started. OddsShopper notes that qualifying legs are often said to have won in the mid-70s, but that no rigorous public sample pins the figure down. Set that against the table above: at −135, a mid-70s leg is roughly break-even at best.
How we think about it at BAI8
We price outcomes, not teasers. A teaser is just a bundle of spread bets at a fixed price, so the same test applies as anywhere else: is your chance on each leg higher than the price implies? If you cannot put a number on each leg, you cannot tell a good teaser from a bad one. Our rule of thumb on edges is in what a positive edge actually means, and pushes are covered in what a push means in betting.
What this does not tell you
It does not tell you any current teaser is worth betting; the rates above are break-evens, not forecasts. It assumes the legs are independent, which they are not if both games share weather or a late injury. The key-number figures are NFL ones; college football and basketball margins behave differently. And books grade pushes in teasers differently, so read the rules before you bet.
18+. Bet only what you can afford to lose.
Common questions
What is a teaser bet?
A bet on two or more point spreads where each line is moved in your favour by a fixed number of points, often six in the NFL. Every leg has to win, and the payout is lower than a normal parlay.
What win rate does a two-team teaser need?
At −120, the ticket must win 54.5% of the time, so each of two independent legs needs about 73.9%. At −110 it is 72.4% per leg; at −135 it is 75.8%.
What is a Wong teaser?
A two-team, six-point NFL teaser using only favourites of −7.5 to −8.5 or underdogs of +1.5 to +2.5, so each leg crosses both 3 and 7. It is named after Stanford Wong, who described it in Sharp Sports Betting.
Do teasers work in college football or basketball?
The key-number logic comes from NFL scoring. Basketball margins do not cluster on a few numbers, and college football figures differ from the NFL ones, so do not carry the NFL rates over.