How Far Each Book Prices From The Market

Disclosure: BetMGM, ProphetX, Kalshi, Novig and Polymarket US are affiliate partners of The Odds Gap. The measurements on this page are computed from scanned prices and are never weighted toward a partner. Where a partner ranks is where the prices put it.

What Is Measured

Dispersion: the mean absolute distance between a book's de-vigged price and the median of every other book quoting the same bet at the same moment, in probability points.

Distance From the Market, MLB moneylines, 6 Hours Out

30 days. Units are probability points on the de-vigged fair price. The field is the median across platform nodes, excluding the book's own platform. Lower is closer to where everyone else was. Offshore books are not listed.

Two numbers this page deliberately does not publish. The first is a book measured against its own closing price, which sounds like the obvious way to measure staleness and mostly measures how far the game moved: it scores a book badly for having quoted a game that later swung. The second is a ranking of books as good or bad from this table alone. Distance says a book is doing its own thing, not that its own thing is wrong. The follow-up study linked below separates those two.

This table refreshes when the underlying study is rerun, not daily. It was generated 2026-08-12.

How to Check This Yourself

• The 30-day study and its method
• The follow-up that separates wide from wrong
• The machine-readable snapshot
• The price archive every figure here is computed from: free, unauthenticated, one row per scan, book, market and side.

Cite this page: https://theoddsgap.com/reference/book-price-distance, as of 2026-08-12.