Does matched betting work in the US?

No, not the way it's practiced in the UK. UK matched betting pairs a bookmaker's free bet with a cheap lay bet on a betting exchange, and UK books hand out free bets on a repeating schedule, so the same trick runs every week for a steady profit. The US is missing both pieces almost everywhere: a true betting exchange is licensed in only a handful of states, and the big sign-up offers are one-time, not weekly. What's left is a single hedge on whatever bonus bet or no-sweat refund you get once, which is worth doing, just not as a repeatable system.

What does matched betting mean?

Matched betting backs a bookmaker's free bet on one side of an event and lays the same event on a betting exchange, sized so roughly the same amount is risked on the other side. A betting exchange works differently from a bookmaker: instead of betting against the house, you bet against another user, and the exchange takes a commission on your winnings rather than building a margin into the price itself. Because that commission runs to only a few percent of net winnings, a UK matched bettor can usually lock in most of a free bet's face value.

UK books also keep the supply going. New-customer offers exist there too, but so do recurring "bet £10, get £5" reload offers and odds boosts aimed at customers who already have an account. That ongoing supply, not just the exchange, is what turns matched betting into something people do every week instead of a one-off trick.

Why it doesn't work the same way here

Two things that make the UK version repeatable are rare in the US.

A true betting exchange, where you lay a bet instead of only backing one, is licensed in a handful of states. Sporttrade and Novig operate in places like New Jersey, Colorado, Iowa, Arizona, and Virginia. Most of the country, including Connecticut, has none, so the "other side" of the match has to be an ordinary bet at a second sportsbook instead of a lay bet on an exchange.

That substitution costs money. A second sportsbook's price still has the bookmaker's own margin built in on both sides of the market, not a flat commission on one side, so the hedge price is never as cheap as a bare exchange fee.

US welcome offers are also mostly one-time. A book gives a new customer one bonus bet or one no-sweat token, once, and that's the end of it. There's rarely a weekly reload offer sitting behind it the way there often is in the UK, so there's no steady supply of free bets to work through even if the hedge itself were free.

What a US hedge is actually worth

The hedge you can run still works, and it's the same math as converting any bonus bet: place it on one side, and a cash bet sized to match on the other side at a different book, so you come out the same whichever one wins.

Say a sign-up offer pays out as a $100 bonus bet at +250. Hedged against a fair -250 on the other side, that locks in about 71.4%, or $71.43, which is the ceiling that price allows before any real-world vig on the hedge leg makes it a little worse. That's one hedge, from one offer, once. It also explains why longer odds convert better when there's no exchange involved: the bonus bet's own payout multiplier is doing the work that a cheap lay price does in the UK, because there's no cheaper way to take the other side.

Run the numbers before placing anything. The bonus bet converter takes both prices and gives the hedge stake and the locked profit directly, so you're not guessing at the stake size by hand.

The bottom line

Matched betting's reputation as a steady side income comes from pairing cheap exchange prices with a constant supply of reload offers. The US has pieces of both in places: a few states license an exchange, and books do run recurring boosts for existing customers, but neither is the default most bettors will see. Treat each new sign-up offer as one hedge worth running well rather than the start of a repeatable system, and check the exact numbers before you bet.

Betting is for adults 21+ where it's legal, with money you can afford to lose.