Surebet calculator: 2-way and 3-way arb detector
1win holds a Curaçao 8048/JAZ licence and offers 40,000+ piacok across 30+ sportok. This surebet calculator checks 2-way and 3-way piacok for guaranteed-nyereség opportunities and calculates the exact tét to place on each outcome. Regisztrálj a promóciós kóddal XLBONUS before you place your first surebet.
Surebet detector and tét calculator
How this calculator works
A surebet (also called an arb) occurs when the combined implied probabilities across all outcomes in a piac fall below 100%. By distributing a tét across each outcome in proportion to their implied valószínűség, you guarantee a nyereség regardless of result.
For a 2-way piac: arb% = (1/o1) + (1/o2). For a 3-way piac: arb% = (1/o1) + (1/o2) + (1/o3). If arb% is less than 1.00, a surebet exists.
Tét allocation for each outcome: tét_n = (total x (1/szorzók_n)) / arb%. This ensures that every outcome pays out the same total amount: total / arb%. The guaranteed nyereség is (total / arb%) - total.
For example: o1 = 2.20, o2 = 2.10, o3 = 3.60. Arb% = 0.4545 + 0.4762 + 0.2778 = 1.2085. This is above 1.00, so no surebet exists. But if o3 were 5.00, arb% = 0.4545 + 0.4762 + 0.2000 = 1.1307, still no surebet. For a surebet on a 3-way, you typically need all three outcomes to be generously priced simultaneously.
Finding surebets requires comparing prices across multiple bookmakers simultaneously. Real-time discrepancies are uncommon and short-lived because bookmakers adjust rapidly. The most common genuine surebets arise from promotional boosts or error prices that are slow to correct.
The calculator does not apply commission deductions. If one leg is placed at a betting exchange, the lay commission (typically 2-5%) must be factored in to determine whether the net surebet still holds. See the mérkőzésed bet calculator for commission-aware calculations.
Why use it at 1win
1win prices 40,000+ piacok competitively. When promotional szorzók boosts go live, this calculator lets you check azonnal whether they create a surebet against the standard piac. Regisztráció with XLBONUS to access all piacok and promotions.
Gyakori Kérdések
How often do real surebets occur?
Genuine surebets across reputable bookmakers are rare and disappear within minutes of appearing. They are more common during major események when multiple bookmakers compete and errors or boosts create temporary discrepancies.
What is the minimum arb% that makes a surebet worthwhile?
Any arb% below 100% (less than 1.00 in decimal form) is technically nyereségable. However, after fiókot for minimum tét rounding and time cost, most arbers target at least 1-2% guaranteed nyereség margin.
Do I need accounts at multiple bookmakers?
Yes. Surebets arise from price discrepancies between different bookmakers. A single bookmaker cannot offer a surebet against itself in a standard piac.
Can I use this for in-play markets?
Yes, but in-play piacok move quickly. You must be able to place both bets almost simultaneously. Price changes between placements can eliminate the arb or even create a loss.
Is surebet betting legal?
Surebet betting is legal but some bookmakers restrict fiókots identified as arbers. Always check terms and conditions and be aware of potential tét limits.