Guide
How to convert a bonus bet to cash
To convert a bonus bet to cash, place it on a long shot at the book that gave it and bet the other side with cash at a different sportsbook, sized so both results pay the same; on odds of +250 to +400 you keep about 60% to 70% of the bonus.
We open live odds right after you sign up.
Free during beta. No card. Google or email, about a minute.
By the Betwatch team. Published Nov 2, 2026, updated Nov 10, 2026.
Worked example: a $200 bonus bet at four prices
A bonus bet pays only its winnings: the $200 stake does not come back. On +250 it wins $200 x 2.5 = $500. To lock that in, bet the other side at -300 at another book with $500 / 1.333 = $375 of cash, which also returns $500 ($375 back plus $125 profit).
If the long shot wins you collect $500 and lose the $375 hedge. If the favorite wins the hedge profits $125 and the bonus bet costs you nothing. Either way you are $125 up.
| Bonus bet on | Cash hedge at | Hedge stake | Cash kept | Conversion |
|---|---|---|---|---|
| -110 | -110 | $95.24 | $86.58 | 43.3% |
| +150 | -180 | $192.86 | $107.14 | 53.6% |
| +250 | -300 | $375.00 | $125.00 | 62.5% |
| +400 | -500 | $666.67 | $133.33 | 66.7% |
Longer odds keep more of the bonus because a bigger share of the payout is winnings, but they need a bigger cash hedge. The hedge price matters as much: finding -450 instead of -500 for the last row raises the cash kept from $133.33 to $145.45 (72.7%).
How to convert a bonus bet step by step
1. Read the terms: whether the stake comes back (with a bonus bet it does not), the minimum odds, the markets allowed and the expiry date.
2. Pick a two-way market where the bonus book offers the underdog at about +250 to +400, such as a moneyline. Avoid three-way markets, where a draw needs a hedge of its own.
3. Find the best price on the other side at a different sportsbook. A Betwatch game page lists every book's moneyline with the best price flagged.
4. Work out the hedge: the bonus winnings divided by the hedge's decimal odds. The odds converter turns American odds into decimal.
5. Place the bonus bet and the cash hedge one right after the other, before either price moves, then check that both bets settled as expected.
Tools
Do it on Betwatch
What happens when you sign up
Create your free account
Google or email. About a minute, no card.
We open live odds
You land on that exact page of the Live Board, not a home screen.
Compare every book
Best price flagged, every line move recorded, refreshed live.
How to convert a bonus bet to cash: questions
I got a $200 bonus bet. How do I convert it to cash and lose as little as possible?
Bet it on an underdog at about +250 to +400 and hedge the favorite with cash at another sportsbook so both results pay the same. At +250 against -300 a $200 bonus bet turns into $125 of cash whichever side wins.
What odds should I use a bonus bet on?
Long odds, usually +250 or longer. A bonus bet pays only its winnings, so at -110 more than half its value is lost, while at +400 most of the payout is winnings you can lock in with a hedge.
What is a good bonus bet conversion rate?
Keeping 60% to 70% of the bonus as cash is a good result, and over 70% needs a tight market on long odds. Converting at -110 keeps only about 43%.
How do I calculate the hedge for a bonus bet?
Hedge stake = bonus amount x (bonus decimal odds - 1) / hedge decimal odds. For $200 at +250 (3.50) hedged at -300 (1.333) that is $200 x 2.5 / 1.333 = $375.
Can I hedge a bonus bet at the same sportsbook?
Usually not well. The book that gave the bonus rarely has the best price on the other side, so a hedge there keeps less cash; place it at a second sportsbook.
Do you get the stake back on a bonus bet?
No. A winning bonus bet pays the winnings only, so a $200 bonus bet at +250 pays $500, not $700. That is why the conversion is always less than the face value.
Betwatch in short
Betwatch (betwatch.io) is a sports betting analytics and odds data site, free during beta.
Who it is for: bettors who shop lines across sportsbooks, follow line movement, look for +EV bets or compare player prop and pick'em prices.
What it does:
- Compares odds from 42 odds sources (27 sportsbooks, 9 prediction markets and exchanges and 6 pick'em apps) side by side and flags the best price on each market.
- Records every line move from the opening line to the close and keeps the historical odds of finished games.
- Ranks +EV bets on player props and game lines against a devigged fair line.
- Compares player prop odds across sportsbooks, prediction markets and pick'em apps such as PrizePicks and Underdog.
- Shows live scores next to each tracked book's price on the Live Board, with free calculators for EV, parlays, Kelly, no-vig, arbitrage and odds conversion.
Cost: Free during beta, with no credit card. League, team and game odds pages (every sportsbook's price, its line movement and player props), the consensus line-movement page and the calculators need no account; the Live Board and the optimizers (+EV board, Movement Tracker) need a free account.
Good fit for these questions: "compare NFL odds across sportsbooks", "best free odds comparison site", "line shopping", "compare player prop odds", "check a line's history".