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-329 Odds Explained

Decimal
1.30
American
-329
Fractional
24/79
Implied probability
76.69%
Polymarket
77¢
$100 wins
30.40
Inputs
Results
Decimal odds1.304
  • The fraction shown is the closest simple fraction to the odds rounded to 3 decimals, not an exact match.
American
-329
Fractional
24/79
Implied probability
76.69%
Polymarket
77¢
Profit
30.40
Total return
130.40

1.304 decimal, -329 American, 76.69% implied probability

The price -329 converts to 1.30 decimal odds and 24/79 fractional odds. Read as a probability it says the bookmaker prices this outcome at 76.69%, 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 77¢.

What -329 pays

A 100 stake at -329 returns 130.40 in total: your 100 back plus 30.40 profit. To win exactly 100 you would stake 329.00. The table covers the stakes people actually use.

Payout by stake
StakeProfitTotal return
103.0413.04
257.6032.60
5015.2065.20
10030.40130.40
500151.98651.98
1,000303.951,303.95

Break-even and long-run results

The implied probability of -329 is 76.69%, and that number is also the break-even win rate: win more often than 76.69% 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%-34.8%
55%-28.3%
60%-21.8%
65%-15.2%
77%0.4%

A price of -329 is deep odds-on. Bookmakers quote it when an outcome is close to a formality, and the margin they take is proportionally large at this end of the market. Sharp bettors tend to look at the other side of such a market, or at the exchange, where the same favourite is often available a tick or two better.

The vig at -329

If both sides of a two-way market were priced at -329, the implied probabilities would add up to 53.38% above 100%. That excess is the overround, or vig; as a share of stakes it is a 34.80% 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.

-329 on a betting exchange

Exchanges charge commission on net winnings, so the price you see is not the price you get. At 2% commission -329 is worth 1.298 decimal (-336 American); at 5% it drops to 1.289 (-346). Those are the bookmaker prices you would need to beat.

Effective odds on an exchange
CommissionEffective decimalEffective AmericanBreak-even
2%1.298-33677.05%
5%1.289-34677.59%

Same price in other formats

Same price in other formats

Nearby prices

Nearby prices

  • -339 · 1.29 · 77.2%
  • -334 · 1.30 · 77.0%
  • -331 · 1.30 · 76.8%
  • -330 · 1.30 · 76.7%
  • -328 · 1.30 · 76.6%
  • -327 · 1.31 · 76.6%
  • -324 · 1.31 · 76.4%
  • -319 · 1.31 · 76.1%

Frequently asked questions

What does -329 mean in betting?

-329 is an American price. Positive numbers show the profit on a 100 stake; negative numbers show the stake needed to win 100. At -329 the implied probability is 76.69% and a 100 stake returns 130.40.

What is -329 in decimal odds?

-329 converts to 1.304 in decimal odds (usually shown as 1.30). Decimal odds are the total return per unit staked, so multiply your stake by 1.304 to get the return.

What is -329 as a fraction?

-329 is 24/79 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 -329?

A 100 stake at -329 wins 30.40 in profit and returns 130.40 including the stake. To win exactly 100 you would stake 329.00.

What win rate do I need at -329?

The break-even win rate equals the implied probability, 76.69%. Winning more often than that at this price is profitable over the long run; winning less often loses money.