Arbitrage Calculator — Guaranteed Profit Betting
Calculate arbitrage opportunities between sportsbooks. Find guaranteed profit when odds differ across bookmakers.
What Is Arbitrage Betting?
Arbitrage betting (arbing) exploits odds differences between sportsbooks to guarantee a profit regardless of the outcome. When Sportsbook A offers +150 on Team X and Sportsbook B offers -140 on Team Y, the combined implied probability may be less than 100%. The gap is your guaranteed profit. It requires accounts at multiple sportsbooks and quick execution before odds adjust.
How to Find Arbs
Arbitrage opportunities typically last minutes to hours before odds adjust. Tools like OddsJam, RebelBetting, and BetBrain scan dozens of sportsbooks in real-time to find arbs. The typical arb returns 1-5% per opportunity. Professional arbers process hundreds of opportunities per month, compounding small guaranteed returns into significant annual income.
The best arbitrage opportunities appear during live betting (in-play), when odds change rapidly and different sportsbooks react at different speeds. Live arbs are harder to execute but offer larger margins (3-8%) compared to pre-game arbs (1-3%).
