Surebet vs value bet: the difference, the real risks and which suits you
A surebet (arbitrage bet) covers every outcome of an event across different bookmakers to lock in a small profit whatever happens. A value bet backs a single outcome whose odds pay more than it's worth. Arbing offers low risk and thin margins; value betting accepts variance in exchange for an edge that can last for years. On paper the surebet looks unbeatable. In practice it comes with costs that hardly anyone mentions.
How a surebet works, with numbers
Take a tennis match. Bookmaker A offers 2.10 on player 1 and bookmaker B offers 2.05 on player 2. Add up the implied probabilities: 1/2.10 + 1/2.05 = 0.476 + 0.488 = 0.964. Because the total is below 1, there's a 3.7% arb.
- Divide your total outlay (£100) by 0.964: the guaranteed return is £103.73.
- Stake 103.73 / 2.10 = £49.40 on player 1 at bookmaker A.
- Stake 103.73 / 2.05 = £50.60 on player 2 at bookmaker B.
- Whoever wins, you collect about £103.73: £3.73 profit.
When the probabilities add up to more than 1, what you're looking at is the normal bookmaker margin. To understand that number properly, see how to calculate a bookmaker's margin.
What nobody tells you about surebets
- The margin is tiny. Most real arbs sit around 1–3%. One miscalculation or rounding slip wipes out the profit.
- Prices move. If one leg shifts before you get it on, the arb is gone and you're left holding a single open bet.
- Palpable errors and voids. Many arbs exist because one bookmaker has made a mistake. Their terms usually let them void that bet, leaving the other leg uncovered.
- Different rules. In tennis, one bookmaker may void on retirement while another settles in favour of the opponent. We explain it in tennis retirement rules.
- Account limits. Bookmakers spot the pattern fast: odd prices, oddly specific stakes, always against the line. The result is a restricted account. More in why bookmakers limit your stakes.
How a value bet works
Here you cover nothing. You back an outcome because you rate its true probability higher than the odds imply. If you make it 50% and you're offered 2.20, your expected value is 0.50 × 2.20 − 1 = +10%. You can lose that bet, but repeated hundreds of times the expectation is positive. The full calculation is in how to calculate a value bet.
The price you pay is variance: losing runs that can last weeks even when you're doing everything right. If that worries you, read up on variance and losing streaks first.
Surebet vs value bet: side by side
| Factor | Surebet | Value bet |
|---|---|---|
| Risk per bet | Low (barring voids or price moves) | High: any single bet can lose |
| Typical margin | 1–3% | 3–10% estimated expected value |
| Accounts needed | Many, with funds spread out | One or a few |
| Risk of being limited | Very high and quick | Moderate, slower |
| Time pressure | Seconds | Minutes or hours |
Which suits you if you follow a tipster?
Nearly every serious tipster works with value bets, not arbs: an arb can't be shared with hundreds of people because it vanishes the moment the first bet moves the price. If someone sells "guaranteed surebets" on subscription, be wary.
To follow value bets you need three things: a tipster with a verified record (on Tippium you'll find the tipsters list, with every pick logged before the event), prices close to the posted ones and a bankroll that can ride out variance. Many users place their bets at Stake, a crypto sportsbook with broad markets; always compare its price with the pick's.
Why the Stake link won't open or shows an error
If you're in a restricted country such as Spain, France, the UK or the US and you tap the Stake link, the site will usually fail to load, stay blank or show a "not available in your country" message. The link isn't broken and neither is your phone: Stake geo-blocks the countries it doesn't accept, based on the IP address you connect from.
How many people connect with Mullvad, step by step
The route many users take is a VPN, an app that makes your connection appear to come from another country. The most common example is Mullvad. Here's how it works, in plain terms:
- Create a Mullvad account. Go to mullvad.net, click to generate an account number and write it down: there's no email or name, that number is your username and password in one.
- Pay for the time you want. It costs about €5 a month and you can pay by card, PayPal or crypto.
- Install the app. Download it for Windows, Mac, Android or iPhone and log in with your account number.
- Pick a server in a country Stake accepts. In Mullvad's location list, choose a country with servers that isn't on Stake's prohibited jurisdictions list, for example Finland, Estonia, Hungary or Singapore. Check that list in the terms first, because it changes.
- Hit "Connect". Wait until the app shows the connection as secure (it turns green).
- Open the Stake link. With the VPN on, use this link to Stake: the site should load normally so you can sign up and deposit.
- Keep the VPN on every time you log in. If you switch it off or change country mid-session, the site will block you again or ask for extra checks.
What Stake's terms say: read this before you deposit
The site loading doesn't mean it's allowed. Clause 14.4 of Stake's terms forbids using a VPN, proxy or false residence details to get around geo-blocking, and under clauses 5.2 and 4.21 Stake can close the account, void bets and withhold the balance, winnings included. On top of that, identity verification (KYC) can ask for an ID and proof of your real address, so the country you live in eventually shows up. If you choose this route, it's at your own risk: only deposit what you're prepared to lose, withdraw often and always check the current terms, because they change.
If you live in a country where Stake is available, you don't need any of this: open Stake here and sign up directly. If you're in a restricted country and don't want that risk, the alternative is a locally licensed bookmaker.
Gamble responsibly: only stake money you can afford to lose and, if betting stops being fun, reach out to a support service in your country.
FAQs
Is arbitrage betting legal?
Betting with several bookmakers isn't illegal, but most reserve the right to restrict or close accounts they see as arbitrage accounts.
Can you make a living from surebets?
It's very hard to sustain: margins are small, you need plenty of capital spread across accounts and they get limited quickly.
Which is more profitable in the long run?
A value betting approach with a genuine edge usually lasts longer, because it draws less attention and doesn't rely on bookmaker mistakes. But neither comes with guarantees.
18+ only. No strategy removes the risk of losing: please gamble responsibly.