Nigerian-owned, edited in Lagos
Arbitrage Calculator
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Enter two opposing odds (Home win at Book A, Away win at Book B). We'll tell you whether an arb exists, how to split your stakes and the margin at those prices.
Arbitrage Calculator
Enter two opposing odds (e.g. Home at Book A, Away at Book B). We tell you the split.
When an arb appears
An arb exists when (1/odds_1) + (1/odds_2) < 1. The tighter the sum, the slimmer the margin. Margins under 1% are common and quickly eaten by fees or limit reductions. We only act on arbs above 2%.
Be aware: books that spot arb accounts may limit or restrict them. Use arbs sparingly and don't turn every account into an arb account.
The editor's notes on this calculator
What this calculator does
Arbitrage (or ‘surebet’) betting is when you can place bets across all outcomes of an event at different operators so that, at the quoted prices, every outcome returns more than your total stake. Enter the odds offered by each operator on each outcome, plus the total amount you want to deploy. The calculator returns the per-outcome stake and the margin at the prices you entered. That margin only holds if every bet is accepted at those exact prices.
When it works
True arbitrage requires genuinely different prices on the same event across operators. It is rare, and when a gap appears the margin is usually small. Prices can move before your second bet is placed, so check both slips before you confirm either one.
Why Nigerian bettors rarely find arbitrage profitable
Operators can cap or close accounts that bet arbitrage consistently. Opening extra accounts to get round limits breaks operator terms and can lead to closed accounts and withheld winnings. Treat arbitrage as a small-margin exercise, not an income.
A more realistic use
Use this calculator to validate that a specific bet at a specific price genuinely has value across operators before you commit. If the numbers do not arb, the market is in line and the bet is a regular value play, not a lock.
Responsible play
Calculators compute returns, not outcomes. Every bet can lose. If betting is stressing you out or costing more than you can afford, please stop. Get help.