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

Pittsburgh Pirates at Chicago White Sox

All Pittsburgh Pirates predictions · All Chicago White Sox predictions

MLB · Tuesday, September 8, 2026 · 7:41 PM · Final: 9-3

The model's call
Chicago White Sox to win
Model confidence 56.5%
Books consensus 56.5%
Result Pittsburgh Pirates 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 Pittsburgh PiratesChicago White Sox
BetMGM +120 -145
BetRivers +123 -139
DraftKings +119 -144
ESPN BET +123 -139
Fanatics +115 -140
FanDuel +124 -146
Hard Rock Bet +125 -150
Caesars +125 -135

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
White Sox −1.5
priced 39.1% to cover · 8 books
Pittsburgh Pirates covered +1.5
Total · closing
O/U 8.5
priced 48.9% over · 7 books, 1 on another number
Over 8.5 (12 scored)
Spread by book PiratesWhite Sox
BetMGM +1.5 -175 −1.5 +145
BetRivers +1.5 -186 −1.5 +150
DraftKings +1.5 -175 −1.5 +144
ESPN BET +1.5 -175 −1.5 +145
Fanatics +1.5 -170 −1.5 +140
FanDuel +1.5 -178 −1.5 +146
Hard Rock Bet +1.5 -175 −1.5 +145
Caesars +1.5 -170 −1.5 +143
Total by bookOverUnder
BetMGM 8.5 -102 8.5 -118
BetRivers 8 -117 8 -104
DraftKings 8.5 -105 8.5 -114
ESPN BET 8.5 -105 8.5 -115
Fanatics 8.5 -105 8.5 -115
FanDuel 8.5 -106 8.5 -114
Hard Rock Bet 8.5 -105 8.5 -115
Caesars 8.5 -105 8.5 -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 Pittsburgh PiratesChicago White Sox
Books consensus fair, de-vigged 43.5% 56.5%
Best book price incl. vig 44.4% 57.4%
Kalshi contract price 43.5% 56.5%
Polymarket contract price 43.5% 56.5%
Markets average 43.5% 56.5%

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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