Dutching Calculator
Split your total stake across 2–10 selections so any winner returns the same profit. Same math sharps use to convert tipster shortlists into a single, equal-return bet.
What is dutching?
Dutching is splitting a total stake across two or more selections so that whichever one wins, the return is identical. Instead of picking one selection at full stake, you back several at calculated stakes that produce the same payout regardless of which wins. Conceptually it's a single bet on the combined probability — the variance is reduced and the price gets clearer.
The dutching formula
The key number is the combined implied probability. If it's below 100%, the dutch is profitable on every winner; above 100% means you're paying vig (or you're trying to dutch too many outcomes in one market).
When dutching makes sense
- You like several outcomes in the same market — for example, you have 3 plausible winners in a 12-player tennis tournament outright market.
- You want to reduce variance — a single 4.00 long-shot becomes a guaranteed return if you dutch it with two 6.00 backups, summing to fair-or-better implied.
- You're following a tipster with shortlist picks — instead of choosing one of their suggestions, dutch all 3 if their combined implied < 100%.
- You want to cover both sides of a market with skewed prices — e.g., handicap and standard winner can sometimes dutch profitably.
When dutching is a trap
- Combined implied above 100% = you're paying vig twice over. Skip.
- Backing too many selections dilutes your edge — most +EV picks come from a single high-confidence selection, not spreading across averages.
- It's not arbitrage — at a single bookmaker, you're still subject to that book's vig. True arbs require multiple books.
- Tax or commission may apply on exchange-priced dutches (Betfair takes 2-5% commission on net winnings — your dutch ROI is effectively reduced).
Dutching vs Kelly
Kelly tells you how much to stake on a single +EV bet. Dutching tells you how to split a fixed stake across multiple +EV options. They're complementary: use Kelly to choose your total stake size, then dutch within that stake if you have multiple +EV selections. Kelly calculator here.
Worked example: 3-way tournament outright
You like 3 players to win an ATP 500 outright, priced at 5.00, 7.50 and 9.00 respectively at a sharp book. Total stake: 100u.
| Selection | Odds | Implied % | Stake | Return if wins |
|---|---|---|---|---|
| Player A | 5.00 | 20.00% | 43.95u | 219.78u |
| Player B | 7.50 | 13.33% | 29.30u | 219.75u |
| Player C | 9.00 | 11.11% | 24.42u | 219.75u |
| Total | — | 44.44% | 97.67u | 219.76u |
Combined implied probability is 44.44% — well below 100%, so the dutch is profitable on every winner. Each winner returns ~219.76u from 100u staked = +119.7% ROI. Of course one of those 3 has to win for the bet to cash; the remaining 55.56% of outcomes (one of the other 7 players) loses everything.
Related tools
Tired of guessing which players to dutch?
TIPERO ranks every ATP, WTA and Challenger pick by EV + confidence — so you know exactly which selections are dutch-worthy. 7-day free trial.
Start Free Trial →FAQ
What is dutching in betting?
Splitting a total stake across two or more selections so any winner returns the same profit. The split is calculated proportionally to each selection's implied probability.
How do I know when dutching is profitable?
Sum the implied probabilities (1/odds) of all your selections. If the total is below 100%, the dutch is +EV on every winner. If above 100%, you're paying vig and losing money long-term.
Is dutching the same as arbitrage?
No. Arbitrage requires multiple bookmakers offering opposing prices that combine below 100%. Dutching uses one bookmaker but spreads stake across two or more selections within a single market.
Can I dutch more than 3 selections?
Yes — this calculator supports up to 10. The math is identical: each selection's stake is proportional to its implied probability divided by the total implied. Practically, dutching more than 4-5 selections rarely produces a profitable combined implied unless you're at a very sharp market.
Does Betfair commission affect dutching?
Yes. Exchange commission (typically 2-5% on net winnings) reduces your effective ROI. Add an extra 2-3% margin to your combined implied threshold to account for commission before deciding the dutch is worth taking.