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 · Monday, July 27, 2026 · 9:33 PM · Final: 7-3

The model's call
Chicago Cubs to win
Model confidence 53.2%
Books consensus 53.2%
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 -125 +105
BetRivers -118 +104
DraftKings -124 +103
ESPN BET -125 +105
Fanatics -125 +105
FanDuel -122 +104
Hard Rock Bet -130 +110
Caesars -125 +105

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 41.7% to cover · 8 books
Chicago Cubs covered −1.5
Total · closing
O/U 9.5
priced 48.0% over · 8 books
Over 9.5 (10 scored)
Spread by book CubsCardinals
BetMGM −1.5 +135 +1.5 -160
BetRivers −1.5 +128 +1.5 -157
DraftKings −1.5 +128 +1.5 -155
ESPN BET −1.5 +135 +1.5 -160
Fanatics −1.5 +130 +1.5 -160
FanDuel −1.5 +128 +1.5 -154
Hard Rock Bet −1.5 +125 +1.5 -150
Caesars −1.5 +130 +1.5 -155
Total by bookOverUnder
BetMGM 9.5 +100 9.5 -120
BetRivers 9.5 -105 9.5 -114
DraftKings 9.5 -102 9.5 -118
ESPN BET 9.5 +100 9.5 -120
Fanatics 9.5 +100 9.5 -120
FanDuel 9.5 +100 9.5 -122
Hard Rock Bet 9.5 -110 9.5 -110
Caesars 9.5 -105 9.5 -115

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 53.2% 46.8%
Best book price incl. vig 54.1% 47.6%
Kalshi contract price 53.5% 46.5%
Polymarket contract price 53.5% 46.5%
Markets average 53.5% 46.5%

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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