For arbitrage and +EV bettors
The house keeps the edge. Take it back.
Sportsbooks build a cut into every line and limit the people who beat it. BookHeist watches 60+ books at once and puts every arbitrage, +EV bet, middle and low-hold market on one screen, with the stakes already worked out.
Invite only. Already have a link? Open it to create your account.
BookHeistExample plays. Stakes and profits use the same math as the Arbitrage finder.
- Arbs, +EV, middles and low holds in one feed
- Kalshi and Polymarket US built in
- Stakes split for you
- Odds refresh every few seconds
Live prices from the books you already bet
- 60+
- sportsbooks, exchanges and prediction markets
- ~10 sec
- between price refreshes
- 9
- tools sharing one live feed
- $0
- spent on spreadsheets ever again
Why BookHeist
The books take from everyone. We take it back.
Sportsbooks win because most bettors play on their terms: a built-in margin on every bet, lines shaded against the public, and limits for anyone who figures it out. BookHeist flips that. No picks, no touts, no gut calls. Just prices, and the moments the books get them wrong.
Strip their cut
Every line has the book's margin baked in. We remove it to find the fair price, so you know what a bet is really worth.
Catch their slips
Sixty-plus books can't all move at once. When one lags or misprices, it shows up here within seconds.
Keep the difference
You get the exact stakes for every side. The profit is the gap the books left open, not a hunch or a pick.
Every tool a sharp bettor needs
One login, one live odds feed, and your book preferences carried across every screen.
Low Hold
The cheapest two-sided markets right now, for clearing playthrough and rollover without bleeding money.
Arbitrage
Both sides priced so you profit whatever happens, with stakes split to the cent.
Positive EV
Soft-book prices beating the sharp market's no-vig line, sized with Kelly.
Middles
Spreads and totals far enough apart that both bets can win.
Odds Screener
Every game and every book side by side, with the best price lit up.
Promo Converter
Turn bonus bets, profit boosts and no-sweat offers into cash with the best hedge.
Alerts
Get pinged the moment an arb, +EV bet or low hold that fits your rules appears.
Bet Tracker
Log bets in one tap and see profit, ROI and closing line value by book.
Calculators
Arbitrage, hedge, no-vig, Kelly, parlay and odds conversion, all in one place.
Arbitrage
Lock in profit before the books catch up
When two books disagree enough, backing every side guarantees a return. BookHeist finds those gaps across every market it tracks, tells you exactly how much to put on each side, and flags new ones the moment they appear.
- Stakes split for an equal payout
- Live and pre-match
- One-tap links to each book
Positive EV
Bet the price, not the hunch
Sharp books like Pinnacle and Circa set the most accurate lines. We strip their vig to get fair odds, then show you every soft-book price that beats it, with the edge and a suggested stake.
- Choose your sharp books and devig method
- Minimum EV and market width filters
- Kelly stake sizing
Low Hold
Clear bonuses for pennies
Need to play through a deposit match? Anchor one side at the book you're clearing and we'll find the lowest-hold hedge anywhere else, with the cost per $100 played spelled out.
- Anchor to any sportsbook
- Hides stale and off-market prices
- Editable stakes that follow the odds
Screens shown with sample odds.
How it works
- 1
Pick your books
Tell us where you have accounts and which books to never use. Every tool filters to the bets you can actually place.
- 2
We scan every price
Odds from 60+ sportsbooks, exchanges and prediction markets refresh every few seconds and run through every tool at once.
- 3
Place both sides
Open the play, check the stakes, tap through to each book. Track it in one click and watch your results add up.
Questions
Is this legal?
Yes. Comparing prices and betting at more than one sportsbook is legal wherever online sports betting is. Only bet at books that are licensed where you are, and follow each book's terms.
Will sportsbooks limit me?
Books can limit accounts that win consistently. Spreading action across books, mixing in normal bets and acting on fresh prices helps. Low Hold and Promo Converter are built for clearing offers, which books expect.
Which sportsbooks are covered?
The major US books (DraftKings, FanDuel, BetMGM, Caesars, ESPN BET, Fanatics, BetRivers, Hard Rock and more), sharp books like Pinnacle, Circa and BookMaker, offshore books, exchanges and prediction markets.
How fresh are the odds?
Prices refresh every few seconds and every screen shows how old its data is. Always confirm the price at the book before you bet, because lines can move between our refresh and your click.
How do I get access?
BookHeist is invite only. If someone sent you an invite link, open it to create your account. Otherwise request access and you'll get an email once you're approved.
Stop leaving your edge with the books.
Request access and see every price the books got wrong, the moment they get it wrong.