-457 Odds Explained
- Decimal
- 1.22
- American
- -457
- Fractional
- 7/32
- Implied probability
- 82.05%
- Polymarket
- 82¢
- $100 wins
- 21.88
- The fraction shown is the closest simple fraction to the odds rounded to 3 decimals, not an exact match.
- American
- -457
- Fractional
- 7/32
- Implied probability
- 82.05%
- Polymarket
- 82¢
- Profit
- 21.88
- Total return
- 121.88
1.219 decimal, -457 American, 82.05% implied probability
American odds of -457 mean
you risk 457 to win 100
. In decimal notation that is 1.22, in fractional notation 7/32, and the implied probability is 82.05%. On a prediction market the same price is a 82¢ share.
What -457 pays
A 100 stake at -457 returns 121.88 in total: your 100 back plus 21.88 profit. To win exactly 100 you would stake 457.00. The table covers the stakes people actually use.
| Stake | Profit | Total return |
|---|---|---|
| 10 | 2.19 | 12.19 |
| 25 | 5.47 | 30.47 |
| 50 | 10.94 | 60.94 |
| 100 | 21.88 | 121.88 |
| 500 | 109.41 | 609.41 |
| 1,000 | 218.82 | 1,218.82 |
Break-even and long-run results
The implied probability of -457 is 82.05%, and that number is also the break-even win rate: win more often than 82.05% 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% | -39.1% |
| 55% | -33.0% |
| 60% | -26.9% |
| 65% | -20.8% |
| 82% | -0.1% |
A price of -457 is deep odds-on. Bookmakers quote it when an outcome is close to a formality, and the margin they take is proportionally large at this end of the market. Sharp bettors tend to look at the other side of such a market, or at the exchange, where the same favourite is often available a tick or two better.
The vig at -457
If both sides of a two-way market were priced at -457, the implied probabilities would add up to 64.09% above 100%. That excess is the overround, or vig; as a share of stakes it is a 39.06% 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.
-457 on a betting exchange
Exchanges charge commission on net winnings, so the price you see is not the price you get. At 2% commission -457 is worth 1.214 decimal (-466 American); at 5% it drops to 1.208 (-481). Those are the bookmaker prices you would need to beat.
| Commission | Effective decimal | Effective American | Break-even |
|---|---|---|---|
| 2% | 1.214 | -466 | 82.34% |
| 5% | 1.208 | -481 | 82.79% |
Same price in other formats
Nearby prices
Nearby prices
Frequently asked questions
What does -457 mean in betting?
-457 is an American price. Positive numbers show the profit on a 100 stake; negative numbers show the stake needed to win 100. At -457 the implied probability is 82.05% and a 100 stake returns 121.88.
What is -457 in decimal odds?
-457 converts to 1.219 in decimal odds (usually shown as 1.22). Decimal odds are the total return per unit staked, so multiply your stake by 1.219 to get the return.
What is -457 as a fraction?
-457 is 7/32 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 -457?
A 100 stake at -457 wins 21.88 in profit and returns 121.88 including the stake. To win exactly 100 you would stake 457.00.
What win rate do I need at -457?
The break-even win rate equals the implied probability, 82.05%. Winning more often than that at this price is profitable over the long run; winning less often loses money.