Arbitrage Sports Calculator
Cover every outcome across bookies for a sure profit.
How to Use This Calculator
- Pop in the odds for each outcome from the different bookmakers
- Add your total stake (the amount you’d like to invest)
- Need more outcomes? Add them (handy for 3-way markets like soccer)
- If there’s an arbitrage opportunity, you’ll see the best stake for each outcome plus your guaranteed profit
Formula
Arbitrage Check: Sum of (1 / Odds) for all outcomes < 1
Arbitrage Percentage = (1 - Sum of Inverses) × 100%
Individual Stake = Total Stake × (1 / Odds_i) / Sum of Inverses
Guaranteed Profit = Total Stake × Arbitrage Percentage / (1 - Arbitrage Percentage)
Frequently Asked Questions
What exactly is arbitrage betting?
Arbitrage betting (also called surebetting) means backing every possible outcome of an event across different bookmakers, so you lock in a profit no matter what happens. It works by taking advantage of price gaps between bookmakers.
How do I spot an arbitrage opportunity?
Line up the odds from several bookmakers for the same event. If you add up the inverse odds (1/odds) for every outcome and the total comes to less than 1, you’ve found an arbitrage opportunity.
Is arbitrage betting allowed?
In most places, yes, arbitrage betting is perfectly legal. That said, bookmakers might limit or shut down accounts they suspect of arbing, since it takes advantage of gaps in their pricing.
How much profit can I expect from an arb?
Most arbitrage chances land in the 1-5% profit range. Bigger margins do pop up but they’re uncommon, usually right when odds are first posted or when lines shift.