Profit lives
in the gap.
Two books price the same game differently. Splitline finds the gap, sizes both bets, and texts you before it closes. Every outcome pays.
Every number here is measured, not modelled.
The counts above come from our own scan history over that window — distinct opportunities, after removing repeat detections of the same open edge.
Profit is quoted after rounding.
Stakes get rounded to whole increments the books will actually accept, then the guaranteed floor is recalculated from those rounded stakes. We never show the theoretical figure.
Two books. One line. Zero guessing.
We find the gap and size the stakes. You place the bets. Four steps, none of them hard.
Two books minimum1. Set up your account
Pick the books you hold and enter your bankroll. Change either of them on the site whenever.
Stakes pre-sized2. We text you every opportunity
The moment a gap opens across your books you get a text with the projected profit and one link to the play — stakes already sized to your bankroll.
Deep links3. Tap in and place it yourself
The link opens the play with both stakes and a deep link into each book's game page. You place both bets — we never touch your accounts.
Always on4. Browse the live board anytime
Every open arb across your books, sorted by ROI, on the website whenever you want to look — not just when we text.
Same game. Two prices. One gap.
Books drift. When the Over at one book and the Under at another add up to less than 100% implied, that's money on the table. We catch it, size it, and round it before it snaps shut.
A text, not a tab you forgot to refresh.
One-way, on purpose. When a placeable gap opens across books you hold, we text you which book to hit first and the projected profit, with one link to the full play — both stakes, both prices and a deep link into each book. Place it yourself; update your bankroll on the site whenever it changes.
One plan. One gap away from paying for itself.
Cancel anytime. You need two funded books to see the board.
Fair questions.
The ones every sharp asks before they hand over forty bucks.
Yes. You are placing ordinary bets at licensed sportsbooks in your state. Arbitrage is a strategy, not a loophole — books just dislike it, which is why stake rounding and sensible sizing matter.
Stop refreshing. Start splitting.
Open the boardSplitline is a tool, not a bookmaker. 21+. Bet responsibly.