Bankroll management for arbitrage and value betting

Most people who fail at this fail on money logistics, not math. The edge is real and small; the operational drag is real and constant.

Your bankroll is not one number

For arbitrage, capital sits as float spread across many bookmaker accounts, and it is only useful where it happens to be. An opportunity between bookmaker A and bookmaker B is worthless if your money is parked at C and D. Practical consequences:

• You need more capital than the stake sizes suggest — money in transit or at the wrong bookmaker earns nothing.
• Withdrawal speed is a feature. A bookmaker that pays out in hours is worth more to an arber than one with slightly better odds and five-day withdrawals.
• Track balances per bookmaker, not just the total. A simple spreadsheet beats memory from day one.

Subscription cost is part of the math

Scanner subscriptions are commonly in the tens to low hundreds of euros per month (verified per-product pricing is in our reviews). Arbitrage margins are typically low single-digit percentages per bet before costs. The smaller your bankroll and betting volume, the more of your gross margin the subscription eats — run the numbers honestly before paying, and use free trials to measure your realistic volume first. Our trial checklist is built for exactly this.

Staking discipline

• Arbitrage: stakes are dictated by the odds — use the arbitrage calculator — but cap total exposure per event so one void bet can't hurt you disproportionately. Rounding stakes to natural amounts also reduces limit risk (see limits guide).
• Value betting: variance is the whole game. Size with fractional Kelly via the staking calculator and expect drawdowns that feel worse than the spreadsheet says.
• Both: keep betting capital fully separate from living money, and predefine the loss level at which you stop and reassess. If that rule feels unnecessary, read our responsible gambling guide — it is the one part of this site we most want you to take seriously.

Fees and currency erosion

Deposit fees, withdrawal fees, currency conversion spreads and dormant-account fees all come straight out of a thin edge. If you bet in one currency and a bookmaker settles in another, the conversion spread alone can eat a meaningful slice of a small arb. Count these costs per month, not per bet — they are easier to see and harder to excuse that way.