Tool · Arbitrage
Find the gap between books.
When two books disagree on a market by more than the combined vig, you can back both sides so the same amount comes back whichever way it lands. Whet finds the window on player props and splits the stake optimally. It does not manage your accounts.
Two books, one disagreement.
Sportsbook A prices the Lakers at +120; Sportsbook B prices the Celtics, the other side of the same game, at +105. Both can't be right: the two implied odds add up to less than 100%, so the books disagree in your favor. Stake $100 on the Lakers (+120 returns $220) and $107 on the Celtics (+105 returns ~$220). You've risked $207 and collect ~$220 whoever wins: ~$13 ahead on either outcome, before the book limits, voids or re-prices. That's the point of an arb: the same return on both sides, not one.
That's arbitrage. The catch: arb windows close in seconds. The books re-price as soon as the disagreement is spotted by the market. Players who only ever place arb bets get limited fast on the aggressive books. The books know arb players don't lose, and they don't want to take that action.
The window, then the stake split.
Whet checks for arb windows on player props when you open the Arbitrage tab, over the newest completed batch of odds from the last ten minutes, and re-checks every 30 seconds while the tab is open. For each window it finds, it computes the optimal stake split across the two books.
What arbitrage doesn't promise.
Arbitrage doesn't mean “risk-free.” Limits drop. Books void bets when they think a line was mispriced. Bonus funds don't always count toward the lock. Two markets can be correlated in ways the calculator doesn't see (player props with shared rosters). Real arb in 2026 is a managed-risk strategy, not a printing press.
Managing your accounts and limits is on you.
Common questions.
- What is arbitrage betting?
- Backing both sides of the same market at two different books whose prices are far enough apart that the two stakes together return more than they cost, whichever way the game goes.
- Does Whet place the bets for me?
- No. Whet is an analytics tool: it holds no funds and takes no wagers. It shows the pair, the stakes and the moment the prices were captured, and you place them yourself at your own books.
- How long does an arbitrage window last?
- Often less than one scan. Books move quickly and a price can be gone before you reach it, which is why the scanner shows when each price was captured rather than implying it is still there.
- Will arbitrage betting get my account limited?
- Books do limit accounts that only bet arbitrage. Whet does not track your limits, your void rate or your account standing, so managing that is on you.
- Which plan includes the arbitrage scanner?
- Whet, at $24.99 a month.
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