Skip to content

-302 Odds Explained

Decimal
1.33
American
-302
Fractional
33/100
Implied probability
75.12%
Polymarket
75¢
$100 wins
33.11
Inputs
Results
Decimal odds1.331
  • The fraction shown is the closest simple fraction to the odds rounded to 3 decimals, not an exact match.
American
-302
Fractional
33/100
Implied probability
75.12%
Polymarket
75¢
Profit
33.11
Total return
133.11

1.331 decimal, -302 American, 75.12% implied probability

American odds of -302 mean

you risk 302 to win 100

. In decimal notation that is 1.33, in fractional notation 33/100, and the implied probability is 75.12%. On a prediction market the same price is a 75¢ share.

What -302 pays

A 100 stake at -302 returns 133.11 in total: your 100 back plus 33.11 profit. To win exactly 100 you would stake 302.00. The table covers the stakes people actually use.

Payout by stake
StakeProfitTotal return
103.3113.31
258.2833.28
5016.5666.56
10033.11133.11
500165.56665.56
1,000331.131,331.13

Break-even and long-run results

The implied probability of -302 is 75.12%, and that number is also the break-even win rate: win more often than 75.12% 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.

Return on stake by long-run win rate
Win rateReturn on stake
50%-33.4%
55%-26.8%
60%-20.1%
65%-13.5%
75%-0.2%

At 75.12% this is a heavy favourite. Prices this short appear when one side is expected to win comfortably: a top seed against a qualifier, a strong home team against a relegation candidate, or a moneyline in a game with a double-digit spread. The catch is the payout. You need to win more than 75.12% of these bets just to stand still, and one loss wipes out several wins.

The vig at -302

If both sides of a two-way market were priced at -302, the implied probabilities would add up to 50.25% above 100%. That excess is the overround, or vig; as a share of stakes it is a 33.44% 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.

-302 on a betting exchange

Exchanges charge commission on net winnings, so the price you see is not the price you get. At 2% commission -302 is worth 1.325 decimal (-308 American); at 5% it drops to 1.315 (-318). Those are the bookmaker prices you would need to beat.

Effective odds on an exchange
CommissionEffective decimalEffective AmericanBreak-even
2%1.325-30875.50%
5%1.315-31876.07%

Same price in other formats

Same price in other formats

Nearby prices

Nearby prices

  • -312 · 1.32 · 75.7%
  • -307 · 1.33 · 75.4%
  • -304 · 1.33 · 75.2%
  • -303 · 1.33 · 75.2%
  • -301 · 1.33 · 75.1%
  • -300 · 1.33 · 75.0%
  • -297 · 1.34 · 74.8%
  • -292 · 1.34 · 74.5%

Frequently asked questions

What does -302 mean in betting?

-302 is an American price. Positive numbers show the profit on a 100 stake; negative numbers show the stake needed to win 100. At -302 the implied probability is 75.12% and a 100 stake returns 133.11.

What is -302 in decimal odds?

-302 converts to 1.331 in decimal odds (usually shown as 1.33). Decimal odds are the total return per unit staked, so multiply your stake by 1.331 to get the return.

What is -302 as a fraction?

-302 is 33/100 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 -302?

A 100 stake at -302 wins 33.11 in profit and returns 133.11 including the stake. To win exactly 100 you would stake 302.00.

What win rate do I need at -302?

The break-even win rate equals the implied probability, 75.12%. Winning more often than that at this price is profitable over the long run; winning less often loses money.