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

Chicago Cubs at St. Louis Cardinals

MLB · Monday, July 27, 2026 · 7:46 PM

The model's call
Chicago Cubs to win
Model confidence 52.2%
Books consensus 52.2%
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 Chicago CubsSt. Louis Cardinals
DraftKings -126 +104
ESPN BET -120 +100
Fanatics -120 +100
FanDuel -110 -106

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 Chicago CubsSt. Louis Cardinals
Books consensus fair, de-vigged 52.2% 47.8%
Best book price incl. vig 52.4% 49.0%
Kalshi contract price 52.5% 48.5%
Polymarket contract price 51.0% 49.0%
Markets average 51.8% 48.7%

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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