Matched betting: what's the actual trick?

1. Beginner: those tempting sign-up offers

You might see a sign-up offer that gives eligible new customers a free bet?free betA promotional bet, not cash. Conditions apply and the stake may not be returned as winnings.Read the full explanationClose after they place a qualifying bet?qualifying betAn ordinary bet with your own money that meets a promotion's rules. It can win or lose.Read the full explanationClose. The exact conditions vary. You risk your own money on that first bet, so it's not simply free cash. The interesting question is whether you can use the free bet to get back more than the costs involved.

What if we didn't have to guess the winner?

Imagine placing a back bet?back betA bet that a selection will win or an event will happen.Read the full explanationClose on a team to win with a bookmaker?bookmakerThe company taking your bet and offering the odds.Read the full explanationClose, then placing a separate bet against that same team on a betting exchange?betting exchangeA service where customers can bet for or against the same result.Read the full explanationClose. That second bet is called a lay bet?lay betA bet against a result, often used to help balance a bookmaker bet.Read the full explanationClose, or laying off your original bet. The two bets can largely balance each other, so you don't have to rely entirely on picking the winning team.

The first bookmaker bet is often your qualifying bet—the bet needed to meet the offer's rules. Covering it with a lay bet usually involves a small cost, sometimes called a qualifying loss?qualifying lossThe small cost that can remain after backing and laying off a qualifying bet.Read the full explanationClose. There can also be larger losses if the odds?oddsNumbers that show how much a winning bet would pay. Odds can change.Read the full explanationClose move, the bets don't match or a mistake is made.

And what about the free bet?

If you meet the sign-up rules, the bookmaker may give you a free bet. You can use it on another eligible selection and, if suitable, lay that bet off on the exchange too. This helps balance the possible results again. The aim is to get some useful value from the free bet rather than simply hope it wins.

This is where a good calculator earns its keep. It can compare bookmaker and exchange odds, suggest how much to lay and show which eligible options may leave you with more money after costs. But a £10 free bet isn't £10 cash: the stake may not be returned with winnings, rules apply and changing odds or mistakes can cause losses.

2. Intermediate: what happens with a refund offer?

After the new-customer offers, you may find reload offers?reload offersPromotions sometimes available to existing eligible customers, after the initial sign-up offers.Read the full explanationClose for existing eligible customers. For example, a bookmaker might offer money back as a free bet if your qualifying bet loses. Here's the important part: we lay off the original qualifying bet as well. Otherwise we'd be relying on its outcome.

1. Place your qualifying bet. Make a normal bookmaker bet that follows the offer's rules. It uses your own money.
2. Lay off that same bet on the exchange. Bet against your selection, using a calculator to help choose the lay stake?lay stakeThe amount you place on the exchange against an outcome. It's different from the possible liability.Read the full explanationClose. If the bookmaker bet loses, the exchange bet can win and offset much of your stake. If the bookmaker bet wins, the two bets can still largely balance. The hedge?hedgeA second bet that helps offset the first; often a lay bet on an exchange.Read the full explanationClose normally has a cost and needs enough money to cover the exchange bet.
3. See if you've earned the refund. If the bookmaker bet loses and all the offer conditions are met, you may receive the promised free bet. If it wins, you normally won't receive this type of refund.
4. Use—and where suitable, lay off—the free bet. You can choose an eligible selection and place a second lay bet against it. Provider tools can compare suitable odds and calculate stakes to help you get a better return from the free bet after costs.

You don't have to calculate every stake in your head. Some paid services guide you through each part: finding suitable refund offers?refund offersOffers that award a benefit if certain conditions are met, such as a losing bet refunded as a free bet.Read the full explanationClose, laying off the qualifying bet, and comparing how to get more value from any free bet you receive. That makes the process easier to follow, but it doesn't guarantee eligibility, a refund or an ongoing supply of offers. Bookmaker restrictions still apply.

3. Advanced: when the odds look worth investigating

Sometimes a bookmaker's odds look more generous than the actual chance of winning might justify. That's the basic idea behind positive expected value (+EV)?positive expected value (+EV)A way to estimate whether odds might be better than the real chance of winning. It is not a guarantee.Read the full explanationClose. There's some fairly serious maths behind it, but you don't need to do those calculations yourself just to understand what the tools are looking for.

More advanced services may compare prices, study past results and highlight bets their software thinks could offer good value. Just as tools can help find suitable odds and get more value from free bets in the earlier stages, advanced tools do much of the searching and number-crunching here. Your job is to understand what they're showing you and decide whether the risk is acceptable.

There's one big difference from matched betting: in no-lay betting?no-lay bettingPlacing a bet without an opposing exchange bet. You can lose the whole stake.Read the full explanationClose, you don't place the second bet to help balance the result. If your selection loses, you can lose your whole stake. Even a genuinely promising bet can lose, and losing runs can last a long time. A tool can flag a possibility, not guarantee a winner.

And the opportunities won't necessarily last. Odds change, accounts can face restrictions?restrictionsLimits a bookmaker may place on stakes, promotions or account access.Read the full explanationClose and the software's estimates can be wrong. Any bookmaker limits and terms must be respected.

What are you actually paying the software to do?

In short, you're paying for guidance and tools that make a complicated process easier to follow—and help you compare how much value you might get from free bets. You're not paying for certainty or guaranteed returns. Providers differ, and some features cost extra. Our subscription reality check explains what to ask before paying; a sourced provider comparison is being developed separately.