Matched Betting

Matched betting is a way to extract cash from sportsbook promotions — bonus bets, deposit matches, odds boosts — without actually gambling on who wins. You place a “qualifying” bet on one side of a game at one sportsbook, then immediately place an opposing bet on the other side at a second sportsbook (or a betting exchange like Novig or Sporttrade). Structured correctly, the two bets offset each other almost completely: whichever side wins, you lose roughly the same amount you gain, so the game’s actual outcome stops mattering to your bottom line. What’s left over is the value of the promo itself, converted into money you keep.

This only works because sportsbooks compete for new customers with offers that are, on paper, free money — bet $100 and get $100 in bonus bets, win or lose. A normal bettor takes that offer and then gambles the bonus on a game they like, which reintroduces risk: they might parlay it into nothing. A matched bettor instead treats the bonus like an asset to be liquidated. By backing both outcomes of an event across two books, they turn a bet-shaped bonus into something closer to a rebate check.

The two legs of a matched bet don’t have to be at even odds. Most of the skill is in sizing the second (hedge) bet correctly given the first bet’s odds, so that the profit or loss is the same no matter which side hits. This is the same math used in arbitrage betting — the difference is that in pure arbitrage you’re exploiting a pricing gap between two books, while in matched betting you’re exploiting a promotional bonus, and you’re often willing to accept a small guaranteed loss on the “qualifying” leg because the bonus that follows more than makes up for it.

Example

Say BetMGM is running a “bet $100, get $100 in bonus bets” promo — you get the bonus bet just for placing a real-money wager, regardless of whether it wins.

Step 1 — Trigger the bonus. You bet $100 on the Lions moneyline at -110 at BetMGM. To cancel that risk, you bet $100 on the Packers moneyline at -110 at a second book, DraftKings. Because both sides carry the standard -110 vig, you can’t fully break even — whichever side wins, you net -$9.09 across the two books. That $9.09 is your qualifying loss, the “entry fee” for the bonus. BetMGM now credits your account with a $100 bonus bet.

Step 2 — Cash out the bonus bet. Bonus bets pay winnings but don’t return the stake, so their value depends heavily on where you place them. You use the $100 bonus bet on Vanderbilt +260 to upset Alabama. If Vanderbilt wins, that bet pays $260 profit. To hedge, you bet on Alabama at -320 at a second book, sizing the stake so the outcome is identical either way.

Solving for that stake: if Vanderbilt wins, profit = $260 minus the hedge stake (H). If Alabama wins, the bonus bet is worthless (no loss, since it cost nothing) and profit = H × (100/320). Setting those equal: 260 − H = 0.3125H, so H = $198.10.

• Vanderbilt wins: $260 − $198.10 = $61.90
• Alabama wins: $198.10 × 0.3125 = $61.90

Either way, you lock in $61.90. Net that against the $9.09 qualifying loss from Step 1, and the whole cycle nets $52.81 in guaranteed profit — extracted from a $100 bonus bet, using about $398 in temporarily tied-up capital across two accounts.

Key Points

• Odds gaps eat your profit: The hedge leg almost never has odds that mirror the bonus leg exactly, and that mismatch (the combined vig of both books) is what determines your extraction rate. In the example above, a “perfect” world would extract closer to 70%+ of the $100 bonus; real-world odds only allowed 61.9%. Shop both legs before committing.
• Bonus bets belong on underdogs: Because the stake isn’t returned on a winning bonus bet, its value scales with the payout odds. A bonus bet on a -300 favorite barely beats getting nothing; the same bonus bet on a +250 underdog, properly hedged, extracts far more cash. Counterintuitively, longshots are the better tool here.
• A qualifying loss is the cost of doing business, not a mistake: Losing $9.09 to unlock a $100 bonus that nets $61.90 is a good trade. Don’t chase a “free” qualifying bet at the cost of a worse hedge price — the math on the full cycle is what matters.
• Exchanges beat a second sportsbook when available: Betting exchanges like Novig or Sporttrade let you lay a bet directly rather than finding an opposing moneyline at a rival book, which usually tightens your hedge and improves extraction — you’re just paying a small commission on the win instead of eating a second book’s vig.
• Books track this behavior: Sportsbooks flag accounts that only ever bet promos and hedge every position — it’s a recognizable pattern. Expect bonus offers to shrink or disappear on an account that never takes a straight, unhedged risk, and read each promo’s terms (bet expiration, minimum odds, excluded markets) before you commit capital.
• Line movement is the silent killer: If you place the qualifying bet and wait even a few minutes to place the hedge, the odds on the second leg can move enough to blow out your locked-in number. Have both books open and both bet slips loaded before you place either leg.