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

Detroit Tigers at Chicago White Sox

All Detroit Tigers predictions · All Chicago White Sox predictions

MLB · Friday, September 18, 2026 · 7:41 PM · Final: 11-8

The model's call
Chicago White Sox to win
Model confidence 54.3%
Books consensus 54.3%
Result Detroit Tigers 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 Detroit TigersChicago White Sox
BetMGM +110 -135
BetRivers +120 -143
DraftKings +109 -132
ESPN BET +110 -130
Fanatics +110 -130
FanDuel +110 -130
Hard Rock Bet +110 -130
Caesars +118 -140

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 37.4% to cover · 8 books
Detroit Tigers covered +1.5
Total · closing
O/U 8.5
priced 47.5% over · 4 books, 4 on another number
Over 8.5 (19 scored)
Spread by book TigersWhite Sox
BetMGM +1.5 -190 −1.5 +155
BetRivers +1.5 -175 −1.5 +140
DraftKings +1.5 -193 −1.5 +159
ESPN BET +1.5 -190 −1.5 +160
Fanatics +1.5 -185 −1.5 +150
FanDuel +1.5 -192 −1.5 +158
Hard Rock Bet +1.5 -190 −1.5 +155
Caesars +1.5 -185 −1.5 +150
Total by bookOverUnder
BetMGM 8 -115 8 -105
BetRivers 8 -127 8 -112
DraftKings 8 -114 8 -105
ESPN BET 8.5 +105 8.5 -125
Fanatics 8 -115 8 -105
FanDuel 8.5 +100 8.5 -122
Hard Rock Bet 8.5 +100 8.5 -120
Caesars 8.5 +103 8.5 -121

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 Detroit TigersChicago White Sox
Books consensus fair, de-vigged 45.7% 54.3%
Best book price incl. vig 45.5% 56.5%
Kalshi contract price 45.5% 54.5%
Polymarket contract price 45.5% 54.5%
Markets average 45.5% 54.5%

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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