-780 Odds Explained
- Decimal
- 1.13
- American
- -780
- Fractional
- 5/39
- Implied probability
- 88.64%
- Polymarket
- 89¢
- $100 wins
- 12.82
- American
- -780
- Fractional
- 5/39
- Implied probability
- 88.64%
- Polymarket
- 89¢
- Profit
- 12.82
- Total return
- 112.82
1.128 decimal, -780 American, 88.64% implied probability
American odds of -780 mean
you risk 780 to win 100
. In decimal notation that is 1.13, in fractional notation 5/39, and the implied probability is 88.64%. On a prediction market the same price is a 89¢ share.
What -780 pays
A 100 stake at -780 returns 112.82 in total: your 100 back plus 12.82 profit. To win exactly 100 you would stake 780.00. The table covers the stakes people actually use.
| Stake | Profit | Total return |
|---|---|---|
| 10 | 1.28 | 11.28 |
| 25 | 3.21 | 28.21 |
| 50 | 6.41 | 56.41 |
| 100 | 12.82 | 112.82 |
| 500 | 64.10 | 564.10 |
| 1,000 | 128.21 | 1,128.21 |
Break-even and long-run results
The implied probability of -780 is 88.64%, and that number is also the break-even win rate: win more often than 88.64% 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% | -43.6% |
| 55% | -37.9% |
| 60% | -32.3% |
| 65% | -26.7% |
| 89% | 0.4% |
At 88.64% this is a heavy favourite. Prices this short appear when one side is expected to win comfortably: a top seed against a qualifier, a strong home team against a relegation candidate, or a moneyline in a game with a double-digit spread. The catch is the payout. You need to win more than 88.64% of these bets just to stand still, and one loss wipes out several wins.
The vig at -780
If both sides of a two-way market were priced at -780, the implied probabilities would add up to 77.27% above 100%. That excess is the overround, or vig; as a share of stakes it is a 43.59% 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.
-780 on a betting exchange
Exchanges charge commission on net winnings, so the price you see is not the price you get. At 2% commission -780 is worth 1.126 decimal (-796 American); at 5% it drops to 1.122 (-821). Those are the bookmaker prices you would need to beat.
| Commission | Effective decimal | Effective American | Break-even |
|---|---|---|---|
| 2% | 1.126 | -796 | 88.84% |
| 5% | 1.122 | -821 | 89.14% |
Same price in other formats
Nearby prices
Nearby prices
Frequently asked questions
What does -780 mean in betting?
-780 is an American price. Positive numbers show the profit on a 100 stake; negative numbers show the stake needed to win 100. At -780 the implied probability is 88.64% and a 100 stake returns 112.82.
What is -780 in decimal odds?
-780 converts to 1.128 in decimal odds (usually shown as 1.13). Decimal odds are the total return per unit staked, so multiply your stake by 1.128 to get the return.
What is -780 as a fraction?
-780 is 5/39 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 -780?
A 100 stake at -780 wins 12.82 in profit and returns 112.82 including the stake. To win exactly 100 you would stake 780.00.
What win rate do I need at -780?
The break-even win rate equals the implied probability, 88.64%. Winning more often than that at this price is profitable over the long run; winning less often loses money.