-229 Odds Explained
- Decimal
- 1.44
- American
- -229
- Fractional
- 31/71
- Implied probability
- 69.60%
- Polymarket
- 70¢
- $100 wins
- 43.67
- The fraction shown is the closest simple fraction to the odds rounded to 3 decimals, not an exact match.
- American
- -229
- Fractional
- 31/71
- Implied probability
- 69.60%
- Polymarket
- 70¢
- Profit
- 43.67
- Total return
- 143.67
1.437 decimal, -229 American, 69.60% implied probability
American odds of -229 mean
you risk 229 to win 100
. In decimal notation that is 1.44, in fractional notation 31/71, and the implied probability is 69.60%. On a prediction market the same price is a 70¢ share.
What -229 pays
A 100 stake at -229 returns 143.67 in total: your 100 back plus 43.67 profit. To win exactly 100 you would stake 229.00. The table covers the stakes people actually use.
| Stake | Profit | Total return |
|---|---|---|
| 10 | 4.37 | 14.37 |
| 25 | 10.92 | 35.92 |
| 50 | 21.83 | 71.83 |
| 100 | 43.67 | 143.67 |
| 500 | 218.34 | 718.34 |
| 1,000 | 436.68 | 1,436.68 |
Break-even and long-run results
The implied probability of -229 is 69.60%, and that number is also the break-even win rate: win more often than 69.60% 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% | -28.2% |
| 55% | -21.0% |
| 60% | -13.8% |
| 65% | -6.6% |
| 70% | 0.6% |
With an implied probability of 69.60%, -229 is a moderate favourite. Prices in this band are where the bookmaker's margin is easiest to see: the opposite side of the market is usually priced a little longer than the fair line, and the two implied probabilities add up to more than 100%.
The vig at -229
If both sides of a two-way market were priced at -229, the implied probabilities would add up to 39.21% above 100%. That excess is the overround, or vig; as a share of stakes it is a 28.17% 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.
-229 on a betting exchange
Exchanges charge commission on net winnings, so the price you see is not the price you get. At 2% commission -229 is worth 1.428 decimal (-234 American); at 5% it drops to 1.415 (-241). Those are the bookmaker prices you would need to beat.
| Commission | Effective decimal | Effective American | Break-even |
|---|---|---|---|
| 2% | 1.428 | -234 | 70.03% |
| 5% | 1.415 | -241 | 70.68% |
Same price in other formats
Same price in other formats
Nearby prices
Nearby prices
Frequently asked questions
What does -229 mean in betting?
-229 is an American price. Positive numbers show the profit on a 100 stake; negative numbers show the stake needed to win 100. At -229 the implied probability is 69.60% and a 100 stake returns 143.67.
What is -229 in decimal odds?
-229 converts to 1.437 in decimal odds (usually shown as 1.44). Decimal odds are the total return per unit staked, so multiply your stake by 1.437 to get the return.
What is -229 as a fraction?
-229 is 31/71 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 -229?
A 100 stake at -229 wins 43.67 in profit and returns 143.67 including the stake. To win exactly 100 you would stake 229.00.
What win rate do I need at -229?
The break-even win rate equals the implied probability, 69.60%. Winning more often than that at this price is profitable over the long run; winning less often loses money.