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

Miami Marlins at Chicago Cubs

All Miami Marlins predictions · All Chicago Cubs predictions

MLB · Tuesday, September 22, 2026 · 7:40 PM · Final: 8-2

The model's call
Chicago Cubs to win
Model confidence 65.0%
Books consensus 65.0%
Result Miami Marlins 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 Miami MarlinsChicago Cubs
BetMGM +170 -210
BetRivers +188 -230
DraftKings +179 -219
ESPN BET +170 -200
Fanatics +175 -215
FanDuel +168 -200
Hard Rock Bet +175 -210
Caesars +174 -209

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 45.3% to cover · 8 books
Miami Marlins covered +1.5
Total · closing
O/U 6.5
priced 52.0% over · 8 books
Over 6.5 (10 scored)
Spread by book MarlinsCubs
BetMGM +1.5 -135 −1.5 +110
BetRivers +1.5 -124 −1.5 +102
DraftKings +1.5 -132 −1.5 +109
ESPN BET +1.5 -135 −1.5 +115
Fanatics +1.5 -135 −1.5 +110
FanDuel +1.5 -137 −1.5 +114
Hard Rock Bet +1.5 -135 −1.5 +115
Caesars +1.5 -127 −1.5 +110
Total by bookOverUnder
BetMGM 6.5 -120 6.5 +100
BetRivers 6.5 -122 6.5 +100
DraftKings 6.5 -115 6.5 -105
ESPN BET 6.5 -120 6.5 +100
Fanatics 6.5 -115 6.5 -105
FanDuel 6.5 -120 6.5 -102
Hard Rock Bet 6.5 -115 6.5 -105
Caesars 6.5 -118 6.5 +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 Miami MarlinsChicago Cubs
Books consensus fair, de-vigged 35.0% 65.0%
Best book price incl. vig 34.7% 66.7%
Kalshi contract price 34.5% 65.5%
Polymarket contract price 34.5% 65.5%
Markets average 34.5% 65.5%

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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