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

Chicago Cubs at St. Louis Cardinals

All Chicago Cubs predictions · All St. Louis Cardinals predictions

MLB · Tuesday, July 28, 2026 · 7:46 PM · Final: 10-2

The model's call
St. Louis Cardinals to win
Model confidence 50.0%
Books consensus 50.0%
Result Chicago Cubs won model ✗
Identical on purpose: the model applies no adjustment to the de-vigged consensus of the books and Novig, a no-cut exchange, until a candidate signal proves itself in shadow audit — none has yet. Kalshi and Polymarket below are a comparison, not an input.

Closing moneyline by book

The last price each book posted before first pitch — the prices this call could actually have been bet at. Best on each side is highlighted. In-game odds are deliberately excluded: once the game starts, the price tracks the score, not the matchup.

Book Chicago CubsSt. Louis Cardinals
BetMGM -110 -110
BetRivers -112 -103
DraftKings -108 -112
ESPN BET -110 -110
Fanatics -110 -110
FanDuel -112 -104
Hard Rock Bet -110 -110
Caesars -110 -110

Spread & total

Not part of the model's call. Collected from every book and graded in public so the prices can be checked — how spreads and totals have graded so far. The percent is what the price itself implies, vig removed.

Spread · closing
Cubs −1.5
priced 39.0% to cover · 8 books
Chicago Cubs covered −1.5
Total · closing
O/U 8.5
priced 52.2% over · 8 books
Over 8.5 (12 scored)
Spread by book CubsCardinals
BetMGM −1.5 +145 +1.5 -180
BetRivers −1.5 +140 +1.5 -175
DraftKings −1.5 +148 +1.5 -180
ESPN BET −1.5 +145 +1.5 -175
Fanatics −1.5 +145 +1.5 -180
FanDuel −1.5 +146 +1.5 -178
Hard Rock Bet −1.5 +145 +1.5 -175
Caesars −1.5 +143 +1.5 -170
Total by bookOverUnder
BetMGM 8.5 -120 8.5 +100
BetRivers 8.5 -124 8.5 +104
DraftKings 8.5 -119 8.5 -101
ESPN BET 8.5 -120 8.5 +100
Fanatics 8.5 -120 8.5 +100
FanDuel 8.5 -115 8.5 -105
Hard Rock Bet 8.5 -120 8.5 +100
Caesars 8.5 -120 8.5 +100

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 at the close.

Venue Chicago CubsSt. Louis Cardinals
Books consensus fair, de-vigged 50.0% 50.0%
Best book price incl. vig 51.9% 50.7%
Kalshi contract price 50.5% 49.5%
Polymarket contract price 49.5% 50.5%
Markets average 50.0% 50.0%

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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