-110 Odds Explained
- Decimal
- 1.91
- American
- -110
- Fractional
- 10/11
- Implied probability
- 52.38%
- Polymarket
- 52¢
- $100 wins
- 90.91
- American
- -110
- Fractional
- 10/11
- Implied probability
- 52.38%
- Polymarket
- 52¢
- Profit
- 90.91
- Total return
- 190.91
1.909 decimal, -110 American, 52.38% implied probability
-110 is the most common price in American sports betting: the standard line on point spreads and totals, where you risk 110 to win 100. Its decimal equivalent is 1.91, its fractional equivalent 10/11, and the implied probability is 52.38%. The extra 2.38% over a coin flip is the bookmaker's juice.
Because both sides of a spread are usually -110, a bettor picking sides at random loses 4.55% of stakes over time. To profit at -110 you need to win more than 52.38% of your bets.
What -110 pays
A 100 stake at -110 returns 190.91 in total: your 100 back plus 90.91 profit. To win exactly 100 you would stake 110.00. The table covers the stakes people actually use.
| Stake | Profit | Total return |
|---|---|---|
| 10 | 9.09 | 19.09 |
| 25 | 22.73 | 47.73 |
| 50 | 45.45 | 95.45 |
| 100 | 90.91 | 190.91 |
| 500 | 454.55 | 954.55 |
| 1,000 | 909.09 | 1,909.09 |
Break-even and long-run results
The implied probability of -110 is 52.38%, and that number is also the break-even win rate: win more often than 52.38% of the time at this price and you profit in the long run, win less often and you lose. The table shows the return on stake at a few win rates, including the break-even rate itself.
| Win rate | Return on stake |
|---|---|
| 50% | -4.5% |
| 52% | -0.7% |
| 55% | 5.0% |
| 60% | 14.5% |
| 65% | 24.1% |
-110 sits close to even money. The bookmaker sees this as roughly a coin flip, with the margin nudging both sides of the market a little under fair. Point spreads and totals live here: the line moves to make each side about a 50% proposition, and the price carries the juice.
The vig at -110
If both sides of a two-way market were priced at -110, the implied probabilities would add up to 4.76% above 100%. That excess is the overround, or vig; as a share of stakes it is a 4.55% margin for the bookmaker. Removing it leaves fair odds of 2.00 decimal ( +100) on each side. Use the devig calculator to do the same for any market.
-110 on a betting exchange
Exchanges charge commission on net winnings, so the price you see is not the price you get. At 2% commission -110 is worth 1.891 decimal (-112 American); at 5% it drops to 1.864 (-116). Those are the bookmaker prices you would need to beat.
| Commission | Effective decimal | Effective American | Break-even |
|---|---|---|---|
| 2% | 1.891 | -112 | 52.88% |
| 5% | 1.864 | -116 | 53.66% |
Same price in other formats
Nearby prices
Nearby prices
Frequently asked questions
What does -110 mean in betting?
-110 is an American price. Positive numbers show the profit on a 100 stake; negative numbers show the stake needed to win 100. At -110 the implied probability is 52.38% and a 100 stake returns 190.91.
What is -110 in decimal odds?
-110 converts to 1.909 in decimal odds (usually shown as 1.91). Decimal odds are the total return per unit staked, so multiply your stake by 1.909 to get the return.
What is -110 as a fraction?
-110 is 10/11 in fractional odds, the traditional bookmaker notation where the top number is profit and the bottom number is stake.
How much do I win on a 100 bet at -110?
A 100 stake at -110 wins 90.91 in profit and returns 190.91 including the stake. To win exactly 100 you would stake 110.00.
What win rate do I need at -110?
The break-even win rate equals the implied probability, 52.38%. Winning more often than that at this price is profitable over the long run; winning less often loses money.
Why are spreads priced at -110 on both sides?
The bookmaker moves the line, not the price, to balance action. Charging -110 on each side keeps a 4.55% margin on the market whatever the result. Reduced-juice books quote -105 or -108 instead.