+115 Odds Explained
- Decimal
- 2.15
- American
- +115
- Fractional
- 23/20
- Implied probability
- 46.51%
- Polymarket
- 47¢
- $100 wins
- 115.00
- American
- +115
- Fractional
- 23/20
- Implied probability
- 46.51%
- Polymarket
- 47¢
- Profit
- 115.00
- Total return
- 215.00
2.150 decimal, +115 American, 46.51% implied probability
The price +115 converts to 2.15 decimal odds and 23/20 fractional odds. Read as a probability it says the bookmaker prices this outcome at 46.51%, which is the share of the time you would need to win just to break even. A prediction market would quote the same chance as 47¢.
What +115 pays
A 100 stake at +115 returns 215.00 in total: your 100 back plus 115.00 profit. To win exactly 100 you would stake 86.96. The table covers the stakes people actually use.
| Stake | Profit | Total return |
|---|---|---|
| 10 | 11.50 | 21.50 |
| 25 | 28.75 | 53.75 |
| 50 | 57.50 | 107.50 |
| 100 | 115.00 | 215.00 |
| 500 | 575.00 | 1,075.00 |
| 1,000 | 1,150.00 | 2,150.00 |
Break-even and long-run results
The implied probability of +115 is 46.51%, and that number is also the break-even win rate: win more often than 46.51% 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 |
|---|---|
| 47% | 1.0% |
| 50% | 7.5% |
| 55% | 18.3% |
| 60% | 29.0% |
| 65% | 39.7% |
+115 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 +115
If both sides of a two-way market were priced at +115, the implied probabilities would add up to -6.98% above 100%. That excess is the overround, or vig; as a share of stakes it is a -7.50% 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.
+115 on a betting exchange
Exchanges charge commission on net winnings, so the price you see is not the price you get. At 2% commission +115 is worth 2.127 decimal (+113 American); at 5% it drops to 2.093 (+109). Those are the bookmaker prices you would need to beat.
| Commission | Effective decimal | Effective American | Break-even |
|---|---|---|---|
| 2% | 2.127 | +113 | 47.01% |
| 5% | 2.093 | +109 | 47.79% |
Same price in other formats
Same price in other formats
Nearby prices
Nearby prices
Frequently asked questions
What does +115 mean in betting?
+115 is an American price. Positive numbers show the profit on a 100 stake; negative numbers show the stake needed to win 100. At +115 the implied probability is 46.51% and a 100 stake returns 215.00.
What is +115 in decimal odds?
+115 converts to 2.150 in decimal odds (usually shown as 2.15). Decimal odds are the total return per unit staked, so multiply your stake by 2.150 to get the return.
What is +115 as a fraction?
+115 is 23/20 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 +115?
A 100 stake at +115 wins 115.00 in profit and returns 215.00 including the stake. To win exactly 100 you would stake 86.96.
What win rate do I need at +115?
The break-even win rate equals the implied probability, 46.51%. Winning more often than that at this price is profitable over the long run; winning less often loses money.