Advantage play
⚖️ Arbitrage (Surebet)
Guaranteed-profit staking across 2 or 3 bookmakers.
Result
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How it works
The formula
Arb % = 1/a + 1/b. If <1 it’s an arb. Stake A = total×(1/a)/arb. Guaranteed return = total/arb.
Example: 2.10 & 2.05 → arb 0.964 (3.6% profit). Split 100 → ~4 guaranteed.
FAQ
Questions
What is arbitrage betting?
Backing all outcomes at different bookmakers so any result yields a guaranteed profit.
Risks?
Odds change, limits, and account restrictions — not the math, but execution.
More tools
Related calculators
🃏
Dutching
Back multiple selections for equal profit whichever wins.
🤝
Matched Betting
Qualifying loss and free-bet profit with back/lay & exchange commission.
🛡️
Hedge / Cash-Out
Lock in profit or cut losses by hedging the opposite side.
↔️
Back/Lay (Exchange)
Lay stake and liability for a betting-exchange position.
For entertainment & education only. OSOTOTO does not offer gambling. Results are mathematical estimates — variance means real outcomes differ. 18+. Need support? Self-check.
