Sports Edge Model — every game called, every call graded, in public

Boston Red Sox at Pittsburgh Pirates

MLB · Saturday, August 15, 2026 · 7:16 PM

The model's call
Boston Red Sox to win
Model confidence 52.8%
Books consensus 52.8%
Identical on purpose: the model applies no adjustment to the books’ de-vigged consensus until a candidate signal proves itself in shadow audit — none has yet. Prediction markets below are a comparison, not an input.

Line shop — latest moneyline by book

Best available price on each side is highlighted. Prices move; always confirm at the book.

Book Boston Red SoxPittsburgh Pirates
DraftKings -126 +104
ESPN BET -120 +100
Fanatics -125 +105
FanDuel -120 +102

Prediction markets vs the books

Every venue sells the same thing — a dollar if that side wins — at a different price. Implied cost per venue below; amber = the cheapest way to buy that side right now.

Venue Boston Red SoxPittsburgh Pirates
Books consensus fair, de-vigged 52.8% 47.2%
Best book price incl. vig 54.5% 48.8%
Kalshi contract price 53.5% 46.5%
Polymarket contract price 53.0% 47.0%
Markets average 53.2% 46.8%

Contract prices exclude exchange trading fees (Kalshi ~1–2¢ midrange), which narrow small gaps. A venue meaningfully below the books consensus is either a bargain or an early opinion — the graded record decides which.

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