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11/4 Fractional Odds Explained

Decimal
3.75
American
+275
Fractional
11/4
Implied probability
26.67%
Polymarket
27¢
$100 wins
275.00
Inputs
Results
Decimal odds3.750
American
+275
Fractional
11/4
Implied probability
26.67%
Polymarket
27¢
Profit
275.00
Total return
375.00

3.750 decimal, +275 American, 26.67% implied probability

Fractional odds of 11/4 pay 275.00 profit on a 100 stake: the top number is the profit, the bottom number the stake. In decimal notation the price is 3.75, in American notation +275, and the implied probability is 26.67%.

What 11/4 pays

Profit is stake multiplied by the fraction; add the stake back for the total return. A 100 stake wins 275.00 and returns 375.00.

Payout by stake
StakeProfitTotal return
1027.5037.50
2568.7593.75
50137.50187.50
100275.00375.00
5001,375.001,875.00
1,0002,750.003,750.00

Break-even and long-run results

The implied probability of 11/4 is bottom divided by top-plus-bottom, which is 26.67%. Win more often than that and you profit over time.

Return on stake by long-run win rate
Win rateReturn on stake
27%1.3%
50%87.5%
55%106.3%
60%125.0%
65%143.8%

11/4 is an odds-against price with an implied chance of 26.67%. Each winner pays 275.00 per 100. The fractional ladder steps up in quarters and halves here (9/4, 5/2, 11/4, 3/1), so small changes in the bookmaker's opinion show up as a move of one rung.

Converting 11/4 by hand

Divide the top of the fraction by the bottom and add one for the decimal price, 3.75. For the implied probability, divide the bottom by the sum of top and bottom: 26.67%. American odds follow from the decimal price: odds-against, so (3.75 − 1) × 100 gives +275. The same chance on a prediction market is a 27¢ share.

The vig at 11/4

With both sides of a two-way market at 11/4, implied probabilities would sum to -46.67% above 100%: a -87.50% margin on stakes. The fair price would be 2.00 decimal each side. Try other markets in the devig calculator.

11/4 on a betting exchange

On an exchange 11/4 is worth 3.695 decimal after 2% commission and 3.613 after 5%. Compare with the bookmaker before choosing where to bet.

Effective odds on an exchange
CommissionEffective decimalEffective AmericanBreak-even
2%3.695+27027.06%
5%3.613+26127.68%

Neighbouring rungs on the ladder

Fractional prices move in fixed rungs rather than smooth steps, so a bookmaker who wants to shorten 11/4 slightly has to jump to the next rung down, and the size of that jump depends on where you are on the ladder. The nearby prices listed below are the rungs on either side of 11/4; each link opens the same set of facts for that price, which is the quickest way to see how much a one-rung move changes the implied probability and the payout.

Same price in other formats

Same price in other formats

Nearby prices

Nearby prices

  • 12/5 · 3.40 · 29.4%
  • 5/2 · 3.50 · 28.6%
  • 13/5 · 3.60 · 27.8%
  • 14/5 · 3.80 · 26.3%
  • 3/1 · 4.00 · 25.0%
  • 16/5 · 4.20 · 23.8%

Frequently asked questions

What does 11/4 mean in betting?

Fractional odds of 11/4 pay the top number in profit for every bottom number staked. A 100 stake wins 275.00 and returns 375.00. The implied probability is 26.67%.

What is 11/4 in decimal odds?

11/4 is 3.75 in decimal odds: divide the top by the bottom and add 1.

What is 11/4 in American odds?

11/4 converts to +275 in American odds.

Is 11/4 a good price?

A price is good only relative to the true chance. 11/4 implies 26.67%; if you believe the outcome is more likely than that, the price has value. Compare it with a devigged market to check.

Why do bookmakers use a ladder of fractions?

Tradition and readability: prices such as 6/4, 100/30 and 11/10 are quoted instead of their reduced forms because they are what racecourse bookmakers have always used. Decimal odds show the same prices with finer steps.