How IntellaBets Works

The problem: every book's price includes a fee

A sportsbook doesn't quote true odds — it quotes odds with its own margin (the "vig" or "overround") baked in. That margin is how the book makes money regardless of who wins. You can see it directly: add up the implied probabilities on both sides of a two-way market and, at a real sportsbook, they will sum to more than 100%.

For example, a coin-flip game priced at -110 on both sides implies about 52.4% on each side — 104.8% total. The extra 4.8% is the book's margin, not information about who is actually favored.

De-vigging: removing the margin to see the real number

"De-vigging" means scaling those implied probabilities back down so they sum to 100% — an estimate of the market's true consensus, with the fee removed. Here's the arithmetic, worked through with illustrative numbers (not a real game or a real result):

We compute this consensus from prices across every book we track, not just one, so a single outlier book can't skew it.

Where the edge comes from: price shopping against that consensus

Every sportsbook prices the same game slightly differently. Once we know the de-vigged consensus, we can see which books are offering a price better than that consensus — and by how much. Continuing the example above: if the consensus on Team A is 54.3% (fair odds of roughly -119) and one book is still offering Team A at -130, that book is short — you'd rather bet Team B there, or find a different book for Team A. If another book offers Team A at -105, that's a price better than the market's own estimate of fair value.

That is what we mean by expected value: not a prediction that a side will win, but a statement about price — that you are getting better than the market's consensus number. A positive-EV bet still loses whenever the worse outcome happens; the edge is in the price you got, realized over many bets, not in any single one.

Why we don't publish a win rate

Almost every competitor in this space leads with a win rate or a return figure. We don't, for two reasons. First, a win rate on its own tells you nothing about whether the underlying picks had a real price edge — a coin-flip strategy can run hot for a month and a genuinely sharp one can run cold, and neither proves anything over a small sample. Second, this business has a specific history: a previous payment processor terminated the account over fabricated statistics that used to be published on this site. Those numbers are gone, and we aren't replacing them with new ones until they're real and the sample is large enough to mean something.

The honest scoreboard is closing line value (CLV) — whether the price you got, at the time you got it, was better than where the market closed. It's checkable, it doesn't depend on how any one game turned out, and it's the number sharp bettors actually track. We are accumulating CLV data under corrected settlement logic right now. We're not publishing an average yet because the sample is still too small and too new to be meaningful — we'd rather say that plainly than publish a number early and have it be wrong in either direction.

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