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 · Wednesday, July 29, 2026 · 7:46 PM · Final: 2-3

The model's call
Chicago Cubs to win
Model confidence 50.0%
Books consensus 50.0%
Result St. Louis Cardinals 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 -109 -105
DraftKings -111 -109
ESPN BET -110 -110
Fanatics -110 -110
FanDuel -104 -112
Hard Rock Bet -110 -110
Caesars -105 -115

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 38.1% to cover · 8 books
St. Louis Cardinals covered +1.5
Total · closing
O/U 7.5
priced 51.7% over · 7 books, 1 on another number
Under 7.5 (5 scored)
Spread by book CubsCardinals
BetMGM −1.5 +150 +1.5 -185
BetRivers −1.5 +150 +1.5 -186
DraftKings −1.5 +144 +1.5 -175
ESPN BET −1.5 +160 +1.5 -190
Fanatics −1.5 +150 +1.5 -185
FanDuel −1.5 +155 +1.5 -188
Hard Rock Bet −1.5 +155 +1.5 -185
Caesars −1.5 +150 +1.5 -178
Total by bookOverUnder
BetMGM 7.5 -118 7.5 -102
BetRivers 8 -107 8 -113
DraftKings 7.5 -118 7.5 -102
ESPN BET 7.5 -125 7.5 +105
Fanatics 7.5 -115 7.5 -105
FanDuel 7.5 -115 7.5 -105
Hard Rock Bet 7.5 -120 7.5 +100
Caesars 7.5 -120 7.5 +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 51.0% 51.2%
Kalshi contract price 49.5% 50.5%
Polymarket contract price 49.5% 50.5%
Markets average 49.5% 50.5%

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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