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-945 Odds Explained

Decimal
1.11
American
-945
Fractional
9/85
Implied probability
90.43%
Polymarket
90¢
$100 wins
10.58
Inputs
Results
Decimal odds1.106
  • The fraction shown is the closest simple fraction to the odds rounded to 3 decimals, not an exact match.
American
-945
Fractional
9/85
Implied probability
90.43%
Polymarket
90¢
Profit
10.58
Total return
110.58

1.106 decimal, -945 American, 90.43% implied probability

-945 is an American price:

the minus sign marks a favourite, and the number is the stake needed to win 100

. Every other format describes the same chance: 1.11 decimal, 9/85 fractional, 90.43% implied probability, 90¢ on Polymarket.

What -945 pays

A 100 stake at -945 returns 110.58 in total: your 100 back plus 10.58 profit. To win exactly 100 you would stake 945.00. The table covers the stakes people actually use.

Payout by stake
StakeProfitTotal return
101.0611.06
252.6527.65
505.2955.29
10010.58110.58
50052.91552.91
1,000105.821,105.82

Break-even and long-run results

The implied probability of -945 is 90.43%, and that number is also the break-even win rate: win more often than 90.43% 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%-44.7%
55%-39.2%
60%-33.7%
65%-28.1%
90%-0.5%

A price of -945 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 -945

If both sides of a two-way market were priced at -945, the implied probabilities would add up to 80.86% above 100%. That excess is the overround, or vig; as a share of stakes it is a 44.71% 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.

-945 on a betting exchange

Exchanges charge commission on net winnings, so the price you see is not the price you get. At 2% commission -945 is worth 1.104 decimal (-964 American); at 5% it drops to 1.101 (-995). Those are the bookmaker prices you would need to beat.

Effective odds on an exchange
CommissionEffective decimalEffective AmericanBreak-even
2%1.104-96490.60%
5%1.101-99590.87%

Same price in other formats

Same price in other formats

Nearby prices

Nearby prices

  • -995 · 1.10 · 90.9%
  • -970 · 1.10 · 90.7%
  • -955 · 1.10 · 90.5%
  • -950 · 1.11 · 90.5%
  • -940 · 1.11 · 90.4%
  • -935 · 1.11 · 90.3%
  • -920 · 1.11 · 90.2%
  • -895 · 1.11 · 89.9%

Frequently asked questions

What does -945 mean in betting?

-945 is an American price. Positive numbers show the profit on a 100 stake; negative numbers show the stake needed to win 100. At -945 the implied probability is 90.43% and a 100 stake returns 110.58.

What is -945 in decimal odds?

-945 converts to 1.106 in decimal odds (usually shown as 1.11). Decimal odds are the total return per unit staked, so multiply your stake by 1.106 to get the return.

What is -945 as a fraction?

-945 is 9/85 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 -945?

A 100 stake at -945 wins 10.58 in profit and returns 110.58 including the stake. To win exactly 100 you would stake 945.00.

What win rate do I need at -945?

The break-even win rate equals the implied probability, 90.43%. Winning more often than that at this price is profitable over the long run; winning less often loses money.