- Fact-checked by Josh Miller
- Edited by Diana Westfield
What is matched betting? It’s a way of turning a bookmaker’s free bet into cash by betting on both sides of the same outcome. You back a team to win with the bookmaker and lay the same team, meaning bet against it, on a betting exchange. Whatever happens in the match, one bet wins and the other loses, and if you set the stakes right the difference is tiny. Do that with the free bet and the difference becomes most of its value. The free matched betting calculator works out every stake for you.
What is matched betting, in a £10 example?
A bookmaker offers a £10 free bet when you place a £10 qualifying bet. You back Brentford at 2.0 for £10, then lay Brentford on the exchange at 2.1 with 2% commission. The CasinoCalcs calculator says lay £9.62. If Brentford win, the back bet pays £10 profit and the lay loses £10.58: you’re 58p down. If they don’t, the lay wins £9.42 after commission and the back bet loses £10: you’re 58p down again. That’s the qualifying loss, the price of the free bet.
Now the free bet. It’s “stake not returned”, so you want a bigger price. Back a horse at 5.0 with the £10 free bet and lay it at 5.2: lay stake £7.72. If it wins, the free bet pays £40 and the lay costs £32.43, so you’re £7.57 up. If it loses, the free bet costs you nothing and the lay wins £7.57 after commission. Either way about £7.57, minus the 58p from earlier, and you’ve made just under £7 from the offer.
Is matched betting legal, and what’s the catch?
It’s legal. You’re placing normal bets and taking offers on their own terms. The catch is that bookmakers know what it looks like, and many will restrict accounts that only ever bet on offers, cutting your maximum stake to pennies or removing promotions. Most people find the sign-up offers are the bulk of the money; after those, ongoing offers pay less for more effort.
The other catch is human error. Laying the wrong amount, laying on the wrong market, or the price moving before you place the second bet can cost more than the offer was worth. Check every bet slip twice and keep a spreadsheet; the matched betting profit tracker does that job.
Is matched betting worth it?
For a few weeks of sign-up offers, for most people, yes: a few hundred pounds for some careful evenings. After that it’s a part-time job with diminishing returns. The lay calculator handles single lays, the money back if second calculator covers refund offers, and the free bet calculator shows what a free bet is worth at different odds.
It isn’t a way out of money trouble, and it can pull people who struggle with gambling back into betting apps. If that’s you, skip it.
Offers are designed to get you betting. BeGambleAware.org has free support if that’s become hard to stop.