Arbitrage betting since 2011
Free surebet calculator for arbitrage bettors
Surebet Monitor started in 2011 as a surebet scanner written by bettors for bettors. Today it is a free calculator that splits your stakes across two or three bets so every result pays the same, with stake tax, Asian lines and a catalog of nearly 20,000 ready-made combinations.
What the calculator does
Two or three bets
Match result, double chance, totals, handicaps and more: pick the bets that cover every result and the calculator finds the stakes.
Stake tax and tax-free bets
Set a stake tax such as Poland's 12%, mark the bets that are tax-free and see what every scenario really pays.
Nearly 20,000 combinations
Not sure which bets cover every result? Search the catalog of ready-made combinations or build one bet by bet.
A surebet in numbers
Two bookmakers disagree about one match: one pays 2.10 on over 2.5 goals, the other 2.05 on under 2.5 goals. 1/2.10 + 1/2.05 = 0.964, below 1, so the prices leave room for a profit.
| Bet | Stake | Returns |
|---|---|---|
| Over 2.5 goals at 2.10 | 49.40 | 103.74 |
| Under 2.5 goals at 2.05 | 50.60 | 103.73 |
| Total | 100.00 | a profit of 3.73 (3.7%) whatever the score |
Without stake tax. Prices move within minutes, and a surebet only exists while both of them do: place both bets before either one changes.
Try it with your own oddsFrom the knowledge base
All guidesGuides written by arbers, with real odds and data: how surebets work, what goes wrong and how bookmakers react.
Two e-wallets for arbers
The wallets we use to move money between bookmakers in seconds. We reviewed both, pros and cons included.
E-wallet for bettors
Skrill
4.3/ 5 · Our ratingOne wallet for your whole bankroll
Instant bookmaker deposits, free bank transfer top-ups, about 40 currencies and VIP with free withdrawals.
- 0%bank transfer top-ups
- ~40currencies in one wallet
- €0bank withdrawals from VIP level
E-wallet for bettors
Neteller
4.1/ 5 · Our ratingYour bankroll in one wallet
Deposits with bookmakers in seconds, a multi-currency wallet, the Net+ prepaid Mastercard and VIP levels with cheaper currency conversion.
- ≤3.99%currency conversion, from 1.29% for VIPs
- $15,000a quarter for VIP Silver
- Net+prepaid Mastercard for your balance
Partner links: signing up through them supports this site. Betting is for adults only (18+).
Betting tips and streaks on SharkBetz
Surebet Monitor sticks to arbitrage. Its sister site SharkBetz covers the rest: free football and tennis tips, team and player streaks, a club Elo ranking and more calculators.
- Football betting tipsToday's and tomorrow's matches with 1X2, goals, corners and cards forecasts, and our tips with their results.
- Team streaksWho goes into a match on a run of wins, goals or clean sheets, and how often such runs went on.
- Club Elo rankingFootball clubs from different leagues on one strength scale, updated every day.
- More calculatorsDutching, hedge and cash out, fair odds, Asian handicap and Elo.
Surebets: frequently asked questions
What is a surebet?
A surebet, or arbitrage bet, is a set of bets on every outcome of an event, placed with different bookmakers at odds high enough that the stakes can be split so every outcome pays more than the total staked. It exists when bookmakers disagree on prices: the sum of 1/odds over all the outcomes falls below 1.
How does the surebet calculator work?
Pick two or three bets that together cover every result, or a ready-made combination from the catalog, enter the odds and your total stake. The calculator splits the stake so every result pays the same and shows the profit, with stake tax, tax-free bets, refunds and the half results of Asian lines. It runs in your browser: the odds and stakes you type are not sent to us.
Is arbitrage betting legal?
Placing bets with bookmakers licensed where you live is legal for adults, and covering every outcome breaks no law. Bookmakers' terms, however, let them limit or close the accounts of players who win steadily, and many do so with arbitrage bettors.
Why do surebets disappear so quickly?
Because one of the prices is wrong, and bookmakers correct wrong prices within seconds or minutes. The main risk is placing the first bet and finding the second price gone, which leaves you with an ordinary bet instead of a sure profit.
Does Surebet Monitor still scan for surebets?
No. The scanner is no longer running: the site offers the calculator, its catalog of combinations and know-how about arbitrage. We do not sell tips or alerts.