Arbitrage calculator: guaranteed profit stake split
1win holds a Curaçao 8048/JAZ licence and prices 40,000+ بازار every day. This free arbitrage calculator finds the guaranteed-profit stake split across two outcome odds. Register with کد تبلیغاتی XLBONUS to open your account before you place your first arb.
2-way arbitrage calculator
How this calculator works
Arbitrage betting (also called "arbing") exploits price differences across bookmakers to guarantee a profit regardless of outcome. For a 2-way market, a risk-free situation exists when the sum of the inverse of each odds is less than 1.00.
The arb percentage formula is: arb% = (1/odds1 + 1/odds2). If this sum is below 1.00, an arbitrage opportunity exists. The lower the arb%, the larger the guaranteed profit margin.
Stake allocation for Outcome 1 uses: stake1 = total x (1/odds1) / arb%. Outcome 2 receives the remainder. This ensures both outcomes return the same total payout.
For example, with Outcome 1 at 2.10 and Outcome 2 at 2.05, the arb% = (1/2.10 + 1/2.05) = 0.4762 + 0.4878 = 0.9640. Since this is below 1.00, an arb exists. On a total stake of 100, the guaranteed profit is 100 / 0.9640 - 100 = 3.73 units.
Stake allocation is proportional to the implied probability of each outcome. The higher-odds outcome receives a smaller stake; the lower-odds outcome receives a larger stake. Both produce identical returns on a win.
In practice, real-time pricing and account restrictions make arbing difficult at most bookmakers. This calculator is intended primarily for understanding the math and for quick checks on promotional markets where odds may be inflated.
The calculator assumes no commission is charged. Lay bets (at exchanges) carry commission which reduces guaranteed profit. Use the Matched Bet calculator for commission-adjusted lay calculations.
Why use it at 1win
1win offers 40,000+ بازار with competitive decimal pricing. Use code XLBONUS when you register to start with a boosted bankroll and explore all available markets.
FAQ
What arb percentage is profitable?
Any arb% below 100% (expressed as a decimal below 1.00) is profitable. Lower percentages yield higher guaranteed profit. Anything above 1.00 means no arb exists.
Do bookmakers allow arbitrage betting?
Most bookmakers restrict or limit accounts identified as arbers. Arbing is legal but can lead to stake restrictions or account closures. Always check terms and conditions.
Can this work for 3-way markets?
Yes, the principle extends to 3 outcomes: arb% = (1/o1 + 1/o2 + 1/o3). The surebet calculator on this site handles 3-way markets explicitly.
Why must I split stakes proportionally?
Proportional stakes ensure equal return regardless of outcome. Unequal stakes would mean one outcome returns more than another, creating exposure to loss.
What is the difference between arbitrage and a surebet?
They are the same concept. "Arbitrage" is the financial term; "surebet" is the شرطبندی ورزشی community term. Both refer to guaranteed profit from odds discrepancies.