Find guaranteed profit when odds discrepancies exist between bookmakers. Calculate exact stakes for any market.
Arbitrage (or "arbing") exploits differences in odds between bookmakers. By placing proportional bets on every outcome of an event across different bookmakers, you guarantee a profit regardless of the result.
Yes — arbitrage is completely legal. However, bookmakers dislike it intensely and will limit or close accounts of known arbitrage bettors. To avoid detection: vary your bet sizes, don't always take the best price, and mix in recreational bets.
True arbs are rare and short-lived — bookmakers adjust odds quickly. Dedicated arb-finding software (OddsPortal, Betburger, OddsJam) automates the search across hundreds of bookmakers in real time.
An arb exists when: 1/odds₁ + 1/odds₂ (+ 1/odds₃) < 1. The further below 1, the higher the profit margin.