Free Tool
Arbitrage Calculator
Got two opposing prices on different books? Enter them both and we'll tell you how to split your bankroll for a guaranteed profit — and whether the arb is real.
Guaranteed profit
2.32%
$23.22 on $1000.00 bankroll
Stake on Side A$475.91
Stake on Side B$524.09
Payout (either side wins)$1023.22
How arbitrage works
An arb exists when the implied probabilities of two opposing prices sum to less than 100%. Stake amounts are calculated so that whichever side wins, the payout is identical — meaning you keep the gap as risk-free profit. Real-world catches: line drift between placing both legs, account limits, and books voiding wagers when they spot arb behavior. Most pure two-way arbs are sub-2% and require >$5k bankrolls to be worth the time. Hedging free bets and middling line moves are usually higher-value plays.