+366 Odds Explained
- Decimal
- 4.66
- American
- +366
- Fractional
- 183/50
- Implied probability
- 21.46%
- Polymarket
- 21¢
- $100 wins
- 366.00
- American
- +366
- Fractional
- 183/50
- Implied probability
- 21.46%
- Polymarket
- 21¢
- Profit
- 366.00
- Total return
- 466.00
4.660 decimal, +366 American, 21.46% implied probability
The price +366 converts to 4.66 decimal odds and 183/50 fractional odds. Read as a probability it says the bookmaker prices this outcome at 21.46%, which is the share of the time you would need to win just to break even. A prediction market would quote the same chance as 21¢.
What +366 pays
A 100 stake at +366 returns 466.00 in total: your 100 back plus 366.00 profit. To win exactly 100 you would stake 27.32. The table covers the stakes people actually use.
| Stake | Profit | Total return |
|---|---|---|
| 10 | 36.60 | 46.60 |
| 25 | 91.50 | 116.50 |
| 50 | 183.00 | 233.00 |
| 100 | 366.00 | 466.00 |
| 500 | 1,830.00 | 2,330.00 |
| 1,000 | 3,660.00 | 4,660.00 |
Break-even and long-run results
The implied probability of +366 is 21.46%, and that number is also the break-even win rate: win more often than 21.46% 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 |
|---|---|
| 21% | -2.1% |
| 50% | 133.0% |
| 55% | 156.3% |
| 60% | 179.6% |
| 65% | 202.9% |
+366 is a longshot. The bookmaker prices the outcome at 21.46%, and the payout of 366.00 per 100 staked is the compensation for how rarely it lands. Longshots carry more margin than any other part of the market, which is why devigging methods disagree most at prices like this one.
The vig at +366
If both sides of a two-way market were priced at +366, the implied probabilities would add up to -57.08% above 100%. That excess is the overround, or vig; as a share of stakes it is a -133.00% 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.
+366 on a betting exchange
Exchanges charge commission on net winnings, so the price you see is not the price you get. At 2% commission +366 is worth 4.587 decimal (+359 American); at 5% it drops to 4.477 (+348). Those are the bookmaker prices you would need to beat.
| Commission | Effective decimal | Effective American | Break-even |
|---|---|---|---|
| 2% | 4.587 | +359 | 21.80% |
| 5% | 4.477 | +348 | 22.34% |
Same price in other formats
Nearby prices
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Frequently asked questions
What does +366 mean in betting?
+366 is an American price. Positive numbers show the profit on a 100 stake; negative numbers show the stake needed to win 100. At +366 the implied probability is 21.46% and a 100 stake returns 466.00.
What is +366 in decimal odds?
+366 converts to 4.660 in decimal odds (usually shown as 4.66). Decimal odds are the total return per unit staked, so multiply your stake by 4.660 to get the return.
What is +366 as a fraction?
+366 is 183/50 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 +366?
A 100 stake at +366 wins 366.00 in profit and returns 466.00 including the stake. To win exactly 100 you would stake 27.32.
What win rate do I need at +366?
The break-even win rate equals the implied probability, 21.46%. Winning more often than that at this price is profitable over the long run; winning less often loses money.