Dutching Calculator
Stake splitter, dutch betting & arbitrage detector
A Dutching Calculator splits your total stake mathematically across multiple odds so your payout is the same no matter which outcome wins. This free calculator handles any number of selections, decimal and fractional odds, and automatically flags every arbitrage / surebet opportunity.
Dutching Calculator
Enter the odds for all outcomes. The calculator distributes your stakes so your return is the same no matter which selection wins.
Bet setup
Selection 1
Selection 2
How to use this Dutching Calculator — step by step
Get the perfect stake split in under a minute:
- 1Enter your total stake
At the top, enter the total amount you want to risk (e.g. £100).
- 2Add the odds
Enter the decimal odds for each selection (e.g. 2.10). Use the plus button to add as many selections as you need — from 2 horses to a full race field.
- 3Choose the bet type
Cash, freebet or bonus — the calculator automatically accounts for freebet stakes not being returned in your payout.
- 4Read the results
For each odd you see the exact stake, the guaranteed payout, the overround percentage and whether a surebet exists (sum of reciprocals < 1).
What is dutching in betting?
Dutching is a betting strategy in which you split your stake across multiple possible outcomes so the payout is identical regardless of which one wins. Originally from horse racing (named after Arthur 'Dutch' Schultz), the method works on any market with multiple outcomes — football 3-way, tennis, politics or esports.
How does the dutching calculator work out the stakes?
The core formula is: stake_i = (total stake × (1 / odds_i)) ÷ Σ(1 / odds). Example: £100 on odds 3.00 and 1.50 gives £33.33 and £66.67 — payout in both cases is exactly £100 (break-even). The stake calculator does this automatically for any number of odds you enter.
When does a surebet or arbitrage exist?
Whenever the sum of the reciprocals of all odds is below 1, a guaranteed surebet (arbitrage) exists. Example: 1/2.10 + 1/2.10 = 0.952 → 4.8 % guaranteed profit. Such chances almost always come from odds differences between several bookmakers, not within a single operator.
Are dutching calculators and arbitrage bets legal?
The calculator itself is pure mathematics and 100 % legal. Placing arbitrage / surebets is not a criminal offence in most countries either. However, nearly every licensed bookmaker prohibits dutching in their terms and will limit or close accounts the moment they detect the pattern.
Dutch betting vs. hedging — what's the difference?
Hedging only protects part of the risk on an existing bet. Dutch betting equalises the return completely — you know before the first wager what happens for every outcome. The price at non-arbitrage odds is a small, guaranteed loss (the overround) — comparable to an insurance premium.
Does dutching work for horse racing with many runners?
Yes — this is exactly what it was invented for. The calculator handles any number of odds. Instead of backing only the favourite, you cover several realistic runners so any winner produces the same profit. The more runners you include, the higher the overround climbs — most punters settle on 2–4 selections as the optimum.
What is the overround and where does the calculator show it?
Overround is the bookmaker's margin in percent: (Σ(1/odds) − 1) × 100. Positive overround → you lose on average. Negative overround → surebet. The calculator always displays this value prominently so you can see at a glance whether the bet is worth placing.
Which odds formats does the dutching calculator support?
Decimal odds (e.g. 2.10) by default. UK fractional (11/10) and US moneyline (+110 / −150) can be converted with our odds converter in the betting hub and then pasted in here.