UFC Odds Arbitrage Calculator - Practical Guide
Learn the math, then use the calculator to size proportional stakes across books.
What is arbitrage betting?
Exploit price differences to lock profit regardless of the winner.
Arbitrage betting exploits price differences between sportsbooks. If the best available prices on both fighters are far enough apart, you can split your stake so the win payout is the same regardless of the winner, locking in a profit.
The key test is simple: compute decimal(A) and decimal(B) for the best prices you can get. If 1/decimal(A) + 1/decimal(B) < 1, there is an arbitrage opportunity.
Interactive arbitrage calculator
Toggle odds format (US or Decimal), choose your currency, and compute stakes.
Converted: 2.150 dec / +115
Converted: 1.893 dec / -112
Currency: USD
Use the same proportions across any currency. Values format to your selection.
Positions
A stake$936.40
B stake$1,063.60
Decimal A
2.150
Decimal B
1.893
Outcomes
Return if A wins$2,013.25
Return if B wins$2,013.25
Guaranteed return (min)$2,013.25
Guaranteed profit$13.25
ROI ≈ 0.66%
Condition for arbitrage: 1/decimal(A) + 1/decimal(B) < 1 → Arbitrage exists
Quick examples
Deeper intuition and caveats
Practical guidance to use arbitrage safely.
- Shop multiple books: Arbitrage exists only when cross-book prices are favorable.
- Account for limits and delays: Odds move fast; place both bets promptly and verify limits.
- Fees and boosts: Consider any fees, boosts, or reduced juice that change effective prices.
- Round stakes sensibly: Small rounding can leave a tiny exposure. Check both payouts before placing.