Arbitrage calculator
Enter the price on each side and how much you want to put in. You'll get the stake for each book so the payout is the same whichever side wins.
How it works
Each side's stake is proportional to its implied probability. With +110 (47.6%) and +105 (48.8%), the total is 96.4%, so a $100 total splits $49.40 and $50.60. Either one pays $103.73, a guaranteed $3.73.
Questions
What is an arbitrage bet?
When two books disagree enough that you can bet both sides of the same market and profit whatever happens. Over 24.5 at +110 on one book and Under 24.5 at +105 on another is an arb.
How do I know if two prices are an arb?
Add their implied probabilities. If the total is under 100%, it's an arb. The calculator shows the total and turns green when it is.
Both bets have to be on the same line?
Yes, for a true arb the lines must match (both 24.5). If the Over line is lower than the Under line, it's a middle instead: you can win both bets if the result lands between them.
Are arbs risk-free?
The math is, the execution isn't. Prices move, a book can reject or limit a bet, and a voided leg leaves you holding one side. Place the harder-to-get leg first, and know that books may limit accounts that bet a lot of arbs.
Arbs don't wait for you to find them
Betravon scans every book every minute and shows each live arb with the stake split already worked out. The iPhone app pushes them to you the moment they appear.
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