+102 Odds Explained
- Decimal
- 2.02
- American
- +102
- Fractional
- 51/50
- Implied probability
- 49.50%
- Polymarket
- 50¢
- $100 wins
- 102.00
- American
- +102
- Fractional
- 51/50
- Implied probability
- 49.50%
- Polymarket
- 50¢
- Profit
- 102.00
- Total return
- 202.00
2.020 decimal, +102 American, 49.50% implied probability
+102 is an American price:
the plus sign marks an underdog, and the number is the profit on a 100 stake
. Every other format describes the same chance: 2.02 decimal, 51/50 fractional, 49.50% implied probability, 50¢ on Polymarket.
What +102 pays
A 100 stake at +102 returns 202.00 in total: your 100 back plus 102.00 profit. To win exactly 100 you would stake 98.04. The table covers the stakes people actually use.
| Stake | Profit | Total return |
|---|---|---|
| 10 | 10.20 | 20.20 |
| 25 | 25.50 | 50.50 |
| 50 | 51.00 | 101.00 |
| 100 | 102.00 | 202.00 |
| 500 | 510.00 | 1,010.00 |
| 1,000 | 1,020.00 | 2,020.00 |
Break-even and long-run results
The implied probability of +102 is 49.50%, and that number is also the break-even win rate: win more often than 49.50% 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% | 1.0% |
| 55% | 11.1% |
| 60% | 21.2% |
| 65% | 31.3% |
+102 sits close to even money. The bookmaker sees this as roughly a coin flip, with the margin nudging both sides of the market a little under fair. Point spreads and totals live here: the line moves to make each side about a 50% proposition, and the price carries the juice.
The vig at +102
If both sides of a two-way market were priced at +102, the implied probabilities would add up to -0.99% above 100%. That excess is the overround, or vig; as a share of stakes it is a -1.00% 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.
+102 on a betting exchange
Exchanges charge commission on net winnings, so the price you see is not the price you get. At 2% commission +102 is worth 2.000 decimal (-100 American); at 5% it drops to 1.969 (-103). Those are the bookmaker prices you would need to beat.
| Commission | Effective decimal | Effective American | Break-even |
|---|---|---|---|
| 2% | 2.000 | -100 | 50.01% |
| 5% | 1.969 | -103 | 50.79% |
Same price in other formats
Nearby prices
Nearby prices
Frequently asked questions
What does +102 mean in betting?
+102 is an American price. Positive numbers show the profit on a 100 stake; negative numbers show the stake needed to win 100. At +102 the implied probability is 49.50% and a 100 stake returns 202.00.
What is +102 in decimal odds?
+102 converts to 2.020 in decimal odds (usually shown as 2.02). Decimal odds are the total return per unit staked, so multiply your stake by 2.020 to get the return.
What is +102 as a fraction?
+102 is 51/50 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 +102?
A 100 stake at +102 wins 102.00 in profit and returns 202.00 including the stake. To win exactly 100 you would stake 98.04.
What win rate do I need at +102?
The break-even win rate equals the implied probability, 49.50%. Winning more often than that at this price is profitable over the long run; winning less often loses money.