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

Chicago Cubs at Kansas City Royals

MLB · Saturday, August 8, 2026 · 7:10 PM

The model's call
Chicago Cubs to win
Model confidence 60.2%
Books consensus 60.2%
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 CubsKansas City Royals
BetMGM -170 +140
DraftKings -171 +141
Fanatics -170 +140
Caesars -157 +147

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 CubsKansas City Royals
Books consensus fair, de-vigged 60.2% 39.8%
Best book price incl. vig 61.1% 40.5%
Kalshi contract price 61.5% 38.5%
Polymarket contract price 61.0% 39.0%
Markets average 61.3% 38.8%

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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