Dutching calculator
Dutching spreads one stake over several outcomes so that whichever of them wins, the return is the same. With 100 on odds of 4.00, 5.00 and 6.00, the stakes are 40.54, 32.43 and 27.03, and any winner returns 162.16.
How it works
- Each stake is the total times (1 ÷ its odds) ÷ the sum of 1 ÷ odds over all selections. The return is the total ÷ that sum.
- The sum of 1 ÷ odds is the combined book of your selections: 61.7% in the example. Below 100% the selections do not cover every outcome, and you profit only if one of them wins; at or above 100%, covering every outcome at one bookmaker locks in a loss, the margin.
- Dutching does not change the price of any bet: each stake still carries the bookmaker's margin. It only shapes how the money is spread.
To check the margin on a whole market, use the margin calculator; for odds from different bookmakers that cover every outcome, the arbitrage calculator.
If betting stops being fun, free help is available. The maths explains prices; it does not make anyone win.
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