-158 Odds Explained
- Decimal
- 1.63
- American
- -158
- Fractional
- 50/79
- Implied probability
- 61.24%
- Polymarket
- 61¢
- $100 wins
- 63.29
- American
- -158
- Fractional
- 50/79
- Implied probability
- 61.24%
- Polymarket
- 61¢
- Profit
- 63.29
- Total return
- 163.29
1.633 decimal, -158 American, 61.24% implied probability
American odds of -158 mean
you risk 158 to win 100
. In decimal notation that is 1.63, in fractional notation 50/79, and the implied probability is 61.24%. On a prediction market the same price is a 61¢ share.
What -158 pays
A 100 stake at -158 returns 163.29 in total: your 100 back plus 63.29 profit. To win exactly 100 you would stake 158.00. The table covers the stakes people actually use.
| Stake | Profit | Total return |
|---|---|---|
| 10 | 6.33 | 16.33 |
| 25 | 15.82 | 40.82 |
| 50 | 31.65 | 81.65 |
| 100 | 63.29 | 163.29 |
| 500 | 316.46 | 816.46 |
| 1,000 | 632.91 | 1,632.91 |
Break-even and long-run results
The implied probability of -158 is 61.24%, and that number is also the break-even win rate: win more often than 61.24% 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% | -18.4% |
| 55% | -10.2% |
| 60% | -2.0% |
| 61% | -0.4% |
| 65% | 6.1% |
-158 marks a clear favourite without being a lock: the implied chance is 61.24%, so the bookmaker expects this outcome roughly two times in three. Moneylines on the better team in an evenly scheduled league, the higher-ranked tennis player, or the "under" in a low-total game are typical places to see it.
The vig at -158
If both sides of a two-way market were priced at -158, the implied probabilities would add up to 22.48% above 100%. That excess is the overround, or vig; as a share of stakes it is a 18.35% 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.
-158 on a betting exchange
Exchanges charge commission on net winnings, so the price you see is not the price you get. At 2% commission -158 is worth 1.620 decimal (-161 American); at 5% it drops to 1.601 (-166). Those are the bookmaker prices you would need to beat.
| Commission | Effective decimal | Effective American | Break-even |
|---|---|---|---|
| 2% | 1.620 | -161 | 61.72% |
| 5% | 1.601 | -166 | 62.45% |
Same price in other formats
Nearby prices
Nearby prices
Frequently asked questions
What does -158 mean in betting?
-158 is an American price. Positive numbers show the profit on a 100 stake; negative numbers show the stake needed to win 100. At -158 the implied probability is 61.24% and a 100 stake returns 163.29.
What is -158 in decimal odds?
-158 converts to 1.633 in decimal odds (usually shown as 1.63). Decimal odds are the total return per unit staked, so multiply your stake by 1.633 to get the return.
What is -158 as a fraction?
-158 is 50/79 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 -158?
A 100 stake at -158 wins 63.29 in profit and returns 163.29 including the stake. To win exactly 100 you would stake 158.00.
What win rate do I need at -158?
The break-even win rate equals the implied probability, 61.24%. Winning more often than that at this price is profitable over the long run; winning less often loses money.