9.8 / 10

Surebettors and matched bettors wanting Betfair liquidity plus Pinnacle odds in one account: 2.5% commission, no winner restrictions.
We compare tools for spotting pricing gaps, then let you test the maths. Enter two odds to see whether their implied probabilities create an arbitrage.
All-in-one stack: the Oddsmatcher finds the gaps, SBX prices the lay side with exchange odds and no bookmaker margin.
Every calculator runs instantly in your browser. Free, no signup.
View all →Split stakes across outcomes with optional exchange commission.
Qualifying bets, SNR and SR free-bet profit in one tool.
Effective odds after Betfair-style commission.
Track yield and return on investment over a sample of bets.
Stake across multiple selections for a target return.
Lock profit or reduce exposure between back and lay prices.

Best for: Matched bettors and arbers: live back/lay comparison across 20+ sportsbooks with exchange liquidity shown per opportunity.
Best for: US and Canadian arbers and value bettors: real-time arbitrage, positive-EV and low-hold scanning across 150+ sportsbooks.

Best for: Arbers who want professional-grade scanning: 100+ bookmakers and 30+ sports covered, with a reliable algorithm running since 2013.

Best for: Newcomers to arbitrage: beginner-friendly surebet finder scanning 70+ bookmakers for live and pre-match arbs.

Best for: Matched and volume bettors chasing the best price: exchange odds with no bookmaker margin, Polymarket-grade liquidity, self-custody, and no KYC or winner limits.

Best for: Surebettors and matched bettors wanting Betfair liquidity plus Pinnacle odds in one account: 2.5% commission, no winner restrictions.

Best for: Bettors who want Betfair liquidity at lower commission: 2.5% base rate, no premium charge, plus Pinnacle and ISN access.

Best for: Exchange traders who need the deepest liquidity: the original exchange with the broadest order books and symmetrical in-play fills.

Best for: Exchange bettors who want the lowest commission: 1.5% on UK/Irish racing and 2% on other sports, with a clean interface.

Best for: Surebettors and matched bettors wanting Betfair liquidity plus Pinnacle odds in one account: 2.5% commission, no winner restrictions.

Best for: Crypto bettors who want a sportsbook and casino combo: 2,400+ slots, sharp odds and a renowned VIP program.

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Best for: Crypto casino and sportsbook players who want 5,000+ games, distinctive in-house titles and eSports betting in one account.

Best for: US-based bettors in states without regulated sports betting who want a long-established offshore book with crypto support and deep US-sports markets.

Best for: Crypto bettors who want a sportsbook and casino combo: 2,400+ slots, sharp odds and a renowned VIP program.

Best for: Crypto sports bettors who want a social sportsbook: yield-earning staking, live chat and high limits on Argentina games.

Best for: Crypto casino and sportsbook players who want 5,000+ games, distinctive in-house titles and eSports betting in one account.

Best for: Crypto casino players who value provably fair games, a deep VIP program and payouts within hours.

100% Welcome Bonus
Start with the betting job, not the bookmaker. Pick the workflow that matches your situation and we will route you to the right calculator, comparison page, and practical shortlist.
Matched and volume betting workflow
Matched betting builds the bankroll and back/lay mechanics. Volume betting extends the same skillset into larger, cleaner turnover that can unlock VIP rewards.
Why this path
This path puts the calculator and exchange first, then points you toward the volume-betting playbook instead of treating promos as the final destination.
These are curated recommendations for the selected workflow. Scores are a supporting signal, not the reason for the match.
9.8 / 10

Surebettors and matched bettors wanting Betfair liquidity plus Pinnacle odds in one account: 2.5% commission, no winner restrictions.
9.8 / 10
Matched and volume bettors chasing the best price: exchange odds with no bookmaker margin, Polymarket-grade liquidity, self-custody, and no KYC or winner limits.
9.0 / 10

Discover OddsMonkey in 2026: a leading matched-betting service with an OddsMatcher, calculators, an offer calendar and a strong community. Our in-depth review.
9.7 / 10
US and Canadian arbers and value bettors: real-time arbitrage, positive-EV and low-hold scanning across 150+ sportsbooks.
Compare prices across bookmakers and calculate stakes for every outcome. The theoretical return only holds when every bet is accepted at the quoted odds.
Surebet calculator →Calculate the back and lay stakes for a promotion, including exchange commission and the different outcomes before placing either side.
Matched betting calculator →Compare offered odds with your estimated probability. Positive expected value is a long-run model, not a guarantee that an individual bet or betting period will profit.
Value betting software →Pre-match prices usually give you more time to check rules and stakes. Live prices can change before both sides are accepted, increasing execution risk.
Compare software →
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Read articleSure betting, also called arbitrage betting, uses different prices for the same event to calculate stakes across every outcome. When all bets are accepted at the quoted odds and settled under compatible rules, the calculation can produce the same positive return whichever outcome wins. It is not risk-free: odds can move, bets can be rejected or limited, and operators can apply different void or settlement rules.
Decimal odds imply a probability. If the implied probabilities for every outcome add up to less than 100%, the prices contain a theoretical arbitrage margin. A calculator converts that margin into the stake required on each outcome and shows the resulting return before you place a bet.
Pre-match prices often leave more time to compare market names, settlement rules and stake limits. Live prices change quickly, so one side can move or disappear before the full set of bets is accepted. Recalculate whenever an odd changes and never assume the second bet will remain available.
Use the free surebet calculator to test the numbers, then compare software and reviews for the practical limits each tool or operator discloses.