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

St. Louis Cardinals at San Francisco Giants

All St. Louis Cardinals predictions · All San Francisco Giants predictions

MLB · Wednesday, September 9, 2026 · 3:46 PM · Final: 6-7

The model's call
St. Louis Cardinals to win
Model confidence 52.2%
Books consensus 52.2%
Result San Francisco Giants 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 St. Louis CardinalsSan Francisco Giants
BetMGM -120 +100
BetRivers -127 +107
DraftKings -123 +102
ESPN BET -120 +100
Fanatics -120 +100
FanDuel -118 +100
Hard Rock Bet -120 +100
Caesars -120 +100

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
Cardinals −1.5
priced 40.2% to cover · 8 books
San Francisco Giants covered +1.5
Total · closing
O/U 8
priced 49.0% over · 5 books, 3 on another number
opened 8.5
Over 8 (13 scored)
Spread by book CardinalsGiants
BetMGM −1.5 +135 +1.5 -165
BetRivers −1.5 +132 +1.5 -162
DraftKings −1.5 +135 +1.5 -164
ESPN BET −1.5 +145 +1.5 -175
Fanatics −1.5 +140 +1.5 -170
FanDuel −1.5 +138 +1.5 -166
Hard Rock Bet −1.5 +140 +1.5 -170
Caesars −1.5 +140 +1.5 -165
Total by bookOverUnder
BetMGM 8 -110 8 -110
BetRivers 8 -114 8 -125
DraftKings 8 -115 8 -105
ESPN BET 8.5 +110 8.5 -130
Fanatics 8 -105 8 -115
FanDuel 7.5 -128 7.5 +104
Hard Rock Bet 8.5 +105 8.5 -125
Caesars 8 +100 8 -120

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 St. Louis CardinalsSan Francisco Giants
Books consensus fair, de-vigged 52.2% 47.8%
Best book price incl. vig 54.1% 48.3%
Kalshi contract price 52.0% 48.0%
Polymarket contract price 51.5% 48.5%
Markets average 51.8% 48.2%

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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