What Is Arbitrage Betting?
Arbitrage betting (or "arbing") exploits odds differences between bookmakers to guarantee a profit regardless of the outcome. When the combined implied probabilities across bookmakers sum to less than 100%, an arbitrage opportunity exists.
How It Works
Consider a tennis match where:
- Bookmaker A offers 2.10 on Player 1
- Bookmaker B offers 2.05 on Player 2
Combined implied probability: (1/2.10 + 1/2.05) = 47.6% + 48.8% = 96.4%
Since this is less than 100%, you can bet both sides and guarantee a profit of approximately 3.6%.
Calculating Stakes
Use our arbitrage calculator to determine exact stake distribution. The formula distributes your total stake proportionally to ensure equal returns regardless of outcome.
Important Warnings
- Bookmakers actively detect and limit arbers — vary your bet sizes
- Odds can change between placing your first and second bet
- Account limits and restrictions may apply
- Start with smaller stakes to test your workflow
Our sure bets finder automatically scans 60+ bookmakers to identify live arbitrage opportunities.