2.00 Decimal Odds (Evens) Explained
- Decimal
- 2.00
- American
- +100
- Fractional
- evens
- Implied probability
- 50.00%
- Polymarket
- 50¢
- $100 wins
- 100.00
- American
- +100
- Fractional
- evens
- Implied probability
- 50.00%
- Polymarket
- 50¢
- Profit
- 100.00
- Total return
- 200.00
2.000 decimal, +100 American, 50.00% implied probability
2.00 is evens: stake and profit are equal, the implied probability is 50%, and the price has no margin of its own. Bookmakers rarely quote 2.00 on both sides of a market for that reason; 1.91 each side is the norm.
What 2.00 pays
Multiply the stake by 2.00 to get the total return. A 100 stake returns 200.00, of which 100.00 is profit. To win 100 in profit you would need to stake 100.00.
| Stake | Profit | Total return |
|---|---|---|
| 10 | 10.00 | 20.00 |
| 25 | 25.00 | 50.00 |
| 50 | 50.00 | 100.00 |
| 100 | 100.00 | 200.00 |
| 500 | 500.00 | 1,000.00 |
| 1,000 | 1,000.00 | 2,000.00 |
Break-even and long-run results
One divided by 2.00 is 50.00%: the implied probability, and the win rate at which betting this price neither makes nor loses money. The rows below show the return on stake at several win rates.
| Win rate | Return on stake |
|---|---|
| 50% | 0.0% |
| 55% | 10.0% |
| 60% | 20.0% |
| 65% | 30.0% |
Prices between about 1.80 and 2.20 are the coin-flip zone, and 2.00 implies 50.00%. Spreads, totals and evenly matched moneylines live here. The standard bookmaker line is 1.91 on each side, which adds up to 104.8% and gives the book its 4.5% margin.
Converting 2.00 by hand
Every other format follows from the decimal price in one step. Implied probability is one divided by 2.00, which gives 50.00%. American odds depend on which side of 2.00 the price sits: at or above 2.00, multiply (2.00 − 1) by 100 to get +100. The fraction is 2.00 − 1 written as a ratio and snapped to the nearest traditional price, evens. A prediction market simply quotes the probability in cents: 50¢.
The vig at 2.00
2.00 is the one price with no margin of its own: two outcomes at 2.00 imply 50% each and add to exactly 100%. Bookmakers quote 1.91 or 1.95 instead so that the sum comes out above 100%.
2.00 on a betting exchange
Exchange commission comes off winnings, so 2.00 at 2% commission is really 1.980, and at 5% it is 1.950. The break-even win rate rises accordingly.
| Commission | Effective decimal | Effective American | Break-even |
|---|---|---|---|
| 2% | 1.980 | -102 | 50.51% |
| 5% | 1.950 | -105 | 51.28% |
Same price in other formats
Nearby prices
Nearby prices
Frequently asked questions
What does 2.00 decimal odds mean?
Decimal odds of 2.00 return 2.00 for every 1.00 staked, including the stake, so the profit is 2.00 minus 1. The implied probability is 50.00%.
What is 2.00 in American odds?
2.00 decimal is +100 in American odds. Prices of 2.00 and above convert with (decimal − 1) × 100; prices below 2.00 with −100 / (decimal − 1).
What is 2.00 as a fraction?
2.00 is evens in fractional odds: subtract 1 from the decimal price and express the result as a fraction.
How much does 100 return at 2.00?
100 × 2.00 = 200.00 total return, of which 100.00 is profit.
What win rate breaks even at 2.00?
1 / 2.00 = 50.00%. Win more often than that and the price is profitable; the bookmaker's margin means both sides of a market usually sit a little under fair.