Calculate guaranteed profit stakes across bookmakers, or auto-scan our live odds for arb opportunities.
Arbitrage betting — a "sure bet" or "arb" — happens when different bookmakers price the same event far enough apart that you can back every outcome and lock in a profit no matter what wins. This calculator checks whether a set of odds forms an arb and splits your stake across each outcome so every result pays out the same amount.
True arbs are uncommon and short-lived because bookmakers correct their prices within seconds. Margins are usually just 1–3%, you need funded accounts at several books, and odds can move or a bet can be voided before you place every leg. Bookmakers also limit or close accounts they suspect of arbing. Treat the result as a best case, not a promise.
Home 2.10 at one book and Away 2.10 at another gives a combined implied probability of 95.2% — a 5% arb. On a 1,000 kr stake you place 500 kr on each side and are guaranteed 1,050 kr back: a 50 kr profit whichever team wins.
Calculate guaranteed profit stakes across bookmakers, or auto-scan our live odds for arb opportunities.
Arbitrage betting — a "sure bet" or "arb" — happens when different bookmakers price the same event far enough apart that you can back every outcome and lock in a profit no matter what wins. This calculator checks whether a set of odds forms an arb and splits your stake across each outcome so every result pays out the same amount.
True arbs are uncommon and short-lived because bookmakers correct their prices within seconds. Margins are usually just 1–3%, you need funded accounts at several books, and odds can move or a bet can be voided before you place every leg. Bookmakers also limit or close accounts they suspect of arbing. Treat the result as a best case, not a promise.
Home 2.10 at one book and Away 2.10 at another gives a combined implied probability of 95.2% — a 5% arb. On a 1,000 kr stake you place 500 kr on each side and are guaranteed 1,050 kr back: a 50 kr profit whichever team wins.