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1.11 Decimal Odds Explained

Decimal
1.11
American
-909
Fractional
11/100
Implied probability
90.09%
Polymarket
90¢
$100 wins
11.00
Inputs
Results
Decimal odds1.110
American
-909
Fractional
11/100
Implied probability
90.09%
Polymarket
90¢
Profit
11.00
Total return
111.00

1.110 decimal, -909 American, 90.09% implied probability

Decimal odds of 1.11 return 1.11 for every 1.00 staked, stake included, so the profit on a unit is 1.11 minus one. The same price is -909 in American notation and 11/100 as a fraction, and it implies an implied chance of 90.09% of winning.

What 1.11 pays

Multiply the stake by 1.11 to get the total return. A 100 stake returns 111.00, of which 11.00 is profit. To win 100 in profit you would need to stake 909.09.

Payout by stake
StakeProfitTotal return
101.1011.10
252.7527.75
505.5055.50
10011.00111.00
50055.00555.00
1,000110.001,110.00

Break-even and long-run results

One divided by 1.11 is 90.09%: 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.

Return on stake by long-run win rate
Win rateReturn on stake
50%-44.5%
55%-38.9%
60%-33.4%
65%-27.8%
90%-0.1%

Below about 1.33 decimal a price is a heavy favourite, and 1.11 implies 90.09%. Short prices concentrate risk: a run of wins pays a little each time and one upset takes it all back. On exchanges these favourites are often a tick better than at a bookmaker because the margin at this end of the market is large.

Converting 1.11 by hand

Every other format follows from the decimal price in one step. Implied probability is one divided by 1.11, which gives 90.09%. American odds depend on which side of 2.00 the price sits: below 2.00, divide −100 by (1.11 − 1) to get -909. The fraction is 1.11 − 1 written as a ratio and snapped to the nearest traditional price, 11/100. A prediction market simply quotes the probability in cents: 90¢.

The vig at 1.11

If both sides of a two-way market were 1.11, their implied probabilities would sum to 80.18% above 100%. That is the overround; as a share of stakes it is a 44.50% margin. The fair price with the margin removed is 2.00 on each side. The devig calculator does this for any market and any method.

1.11 on a betting exchange

Exchange commission comes off winnings, so 1.11 at 2% commission is really 1.108, and at 5% it is 1.105. The break-even win rate rises accordingly.

Effective odds on an exchange
CommissionEffective decimalEffective AmericanBreak-even
2%1.108-92890.27%
5%1.105-95790.54%

Same price in other formats

Same price in other formats

Nearby prices

Nearby prices

  • 1.06 · 1.06 · 94.3%
  • 1.09 · 1.09 · 91.7%
  • 1.10 · 1.10 · 90.9%
  • 1.12 · 1.12 · 89.3%
  • 1.13 · 1.13 · 88.5%
  • 1.16 · 1.16 · 86.2%

Frequently asked questions

What does 1.11 decimal odds mean?

Decimal odds of 1.11 return 1.11 for every 1.00 staked, including the stake, so the profit is 1.11 minus 1. The implied probability is 90.09%.

What is 1.11 in American odds?

1.11 decimal is -909 in American odds. Prices of 2.00 and above convert with (decimal − 1) × 100; prices below 2.00 with −100 / (decimal − 1).

What is 1.11 as a fraction?

1.11 is 11/100 in fractional odds: subtract 1 from the decimal price and express the result as a fraction.

How much does 100 return at 1.11?

100 × 1.11 = 111.00 total return, of which 11.00 is profit.

What win rate breaks even at 1.11?

1 / 1.11 = 90.09%. 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.