Dutching calculator
Back more than one outcome and stake each so the return is identical whichever wins.
Stakes
- Outcome 1 at 3.00
- 38.36
- Outcome 2 at 3.50
- 32.88
- Outcome 3 at 4.00
- 28.77
- Total stake
- 100.00
- Return whichever wins
- 115.07
- Profit whichever wins
- 15.07
- Book percentage
- 86.90%
Dutching splits a stake across outcomes in proportion to their implied probabilities, so the return is identical whichever one wins. Stakes are not rounded; round them yourself and the returns will differ by pennies.
How it works
Each stake is the total multiplied by that outcome's implied probability (1 ÷ decimal odds) divided by the sum of all the implied probabilities. That sum, shown as the book percentage, is the whole story: under 100% and you lock in a profit, over 100% and you lock in a loss.
A single bookmaker's market is always over 100%, that is their margin. Dutching pays when you take the best price for each outcome from different bookmakers or an exchange, which is what odds comparison is for.