MLB Arbitrage Calculator
Arbitrage betting lets you lock in a guaranteed profit on a MLB baseball game by backing every outcome at different sportsbooks when their prices disagree. This calculator sizes each stake so you win the same amount no matter what happens.
Open the Arbitrage CalculatorHow to Use This Calculator
- 1Enter the best available odds for each side of the market from different sportsbooks.
- 2Enter your total stake (or the stake on the first side).
- 3The calculator splits your stake across both sides to equalize the return.
- 4Check the guaranteed profit and profit margin before placing both bets.
Worked Example
Setup: You find +120 on one book and -110 on the opposing side at another book, staking $1,000 total.
Result: The calculator allocates roughly $477 and $523 across the two sides, locking in about $24 of profit regardless of the result.
Frequently Asked Questions
Is arbitrage betting on MLB games legal?
Arbitrage betting is legal in regulated markets, but individual sportsbooks may limit or restrict accounts that consistently arb. It is a bankroll-management strategy, not a form of cheating.
Why do MLB arbitrage opportunities appear?
Books price MLB baseball markets independently and update at different speeds. When one book is slow to move a line, its price can disagree with the market enough to create a small guaranteed edge.
How much can I make from arbitrage?
Arbitrage margins are usually small (0.5%-4%). Profit comes from placing many arbs consistently rather than a single large score.