-233 Odds Explained
- Decimal
- 1.43
- American
- -233
- Fractional
- 3/7
- Implied probability
- 69.97%
- Polymarket
- 70¢
- $100 wins
- 42.92
- The fraction shown is the closest simple fraction to the odds rounded to 3 decimals, not an exact match.
- American
- -233
- Fractional
- 3/7
- Implied probability
- 69.97%
- Polymarket
- 70¢
- Profit
- 42.92
- Total return
- 142.92
1.429 decimal, -233 American, 69.97% implied probability
-233 is an American price:
the minus sign marks a favourite, and the number is the stake needed to win 100
. Every other format describes the same chance: 1.43 decimal, 3/7 fractional, 69.97% implied probability, 70¢ on Polymarket.
What -233 pays
A 100 stake at -233 returns 142.92 in total: your 100 back plus 42.92 profit. To win exactly 100 you would stake 233.00. The table covers the stakes people actually use.
| Stake | Profit | Total return |
|---|---|---|
| 10 | 4.29 | 14.29 |
| 25 | 10.73 | 35.73 |
| 50 | 21.46 | 71.46 |
| 100 | 42.92 | 142.92 |
| 500 | 214.59 | 714.59 |
| 1,000 | 429.18 | 1,429.18 |
Break-even and long-run results
The implied probability of -233 is 69.97%, and that number is also the break-even win rate: win more often than 69.97% 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% | -28.5% |
| 55% | -21.4% |
| 60% | -14.2% |
| 65% | -7.1% |
| 70% | 0.0% |
-233 marks a clear favourite without being a lock: the implied chance is 69.97%, 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 -233
If both sides of a two-way market were priced at -233, the implied probabilities would add up to 39.94% above 100%. That excess is the overround, or vig; as a share of stakes it is a 28.54% 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.
-233 on a betting exchange
Exchanges charge commission on net winnings, so the price you see is not the price you get. At 2% commission -233 is worth 1.421 decimal (-238 American); at 5% it drops to 1.408 (-245). Those are the bookmaker prices you would need to beat.
| Commission | Effective decimal | Effective American | Break-even |
|---|---|---|---|
| 2% | 1.421 | -238 | 70.39% |
| 5% | 1.408 | -245 | 71.04% |
Same price in other formats
Nearby prices
Nearby prices
Frequently asked questions
What does -233 mean in betting?
-233 is an American price. Positive numbers show the profit on a 100 stake; negative numbers show the stake needed to win 100. At -233 the implied probability is 69.97% and a 100 stake returns 142.92.
What is -233 in decimal odds?
-233 converts to 1.429 in decimal odds (usually shown as 1.43). Decimal odds are the total return per unit staked, so multiply your stake by 1.429 to get the return.
What is -233 as a fraction?
-233 is 3/7 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 -233?
A 100 stake at -233 wins 42.92 in profit and returns 142.92 including the stake. To win exactly 100 you would stake 233.00.
What win rate do I need at -233?
The break-even win rate equals the implied probability, 69.97%. Winning more often than that at this price is profitable over the long run; winning less often loses money.