+660 Odds Explained
- Decimal
- 7.60
- American
- +660
- Fractional
- 33/5
- Implied probability
- 13.16%
- Polymarket
- 13¢
- $100 wins
- 660.00
- American
- +660
- Fractional
- 33/5
- Implied probability
- 13.16%
- Polymarket
- 13¢
- Profit
- 660.00
- Total return
- 760.00
7.600 decimal, +660 American, 13.16% implied probability
+660 is an American price:
the plus sign marks an underdog, and the number is the profit on a 100 stake
. Every other format describes the same chance: 7.60 decimal, 33/5 fractional, 13.16% implied probability, 13¢ on Polymarket.
What +660 pays
A 100 stake at +660 returns 760.00 in total: your 100 back plus 660.00 profit. To win exactly 100 you would stake 15.15. The table covers the stakes people actually use.
| Stake | Profit | Total return |
|---|---|---|
| 10 | 66.00 | 76.00 |
| 25 | 165.00 | 190.00 |
| 50 | 330.00 | 380.00 |
| 100 | 660.00 | 760.00 |
| 500 | 3,300.00 | 3,800.00 |
| 1,000 | 6,600.00 | 7,600.00 |
Break-even and long-run results
The implied probability of +660 is 13.16%, and that number is also the break-even win rate: win more often than 13.16% 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 |
|---|---|
| 13% | -1.2% |
| 50% | 280.0% |
| 55% | 318.0% |
| 60% | 356.0% |
| 65% | 394.0% |
With an implied chance of 13.16%, a bet at +660 is expected to lose most of the time and to pay 660.00 on 100 when it does not. Outright markets, correct scores and big upsets are where these prices appear, and they are the prices bookmakers shade the hardest.
The vig at +660
If both sides of a two-way market were priced at +660, the implied probabilities would add up to -73.68% above 100%. That excess is the overround, or vig; as a share of stakes it is a -280.00% 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.
+660 on a betting exchange
Exchanges charge commission on net winnings, so the price you see is not the price you get. At 2% commission +660 is worth 7.468 decimal (+647 American); at 5% it drops to 7.270 (+627). Those are the bookmaker prices you would need to beat.
| Commission | Effective decimal | Effective American | Break-even |
|---|---|---|---|
| 2% | 7.468 | +647 | 13.39% |
| 5% | 7.270 | +627 | 13.76% |
Same price in other formats
Nearby prices
Nearby prices
Frequently asked questions
What does +660 mean in betting?
+660 is an American price. Positive numbers show the profit on a 100 stake; negative numbers show the stake needed to win 100. At +660 the implied probability is 13.16% and a 100 stake returns 760.00.
What is +660 in decimal odds?
+660 converts to 7.600 in decimal odds (usually shown as 7.60). Decimal odds are the total return per unit staked, so multiply your stake by 7.600 to get the return.
What is +660 as a fraction?
+660 is 33/5 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 +660?
A 100 stake at +660 wins 660.00 in profit and returns 760.00 including the stake. To win exactly 100 you would stake 15.15.
What win rate do I need at +660?
The break-even win rate equals the implied probability, 13.16%. Winning more often than that at this price is profitable over the long run; winning less often loses money.