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

Chicago Cubs at Miami Marlins

All Chicago Cubs predictions · All Miami Marlins predictions

MLB · Saturday, September 5, 2026 · 4:11 PM · Final: 6-5

The model's call
Chicago Cubs to win
Model confidence 54.3%
Books consensus 54.3%
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 CubsMiami Marlins
BetMGM -130 +110
BetRivers -136 +114
DraftKings -131 +109
ESPN BET -123 +109
Fanatics -130 +110
FanDuel -130 +110
Hard Rock Bet -130 +110
Caesars -125 +115

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
Miami Marlins covered +1.5
Total · closing
O/U 8.5
priced 47.8% over · 5 books, 3 on another number
opened 8
Over 8.5 (11 scored)
Spread by book CubsMarlins
BetMGM −1.5 +130 +1.5 -155
BetRivers −1.5 +120 +1.5 -148
DraftKings −1.5 +129 +1.5 -156
ESPN BET −1.5 +135 +1.5 -160
Fanatics −1.5 +130 +1.5 -160
FanDuel −1.5 +130 +1.5 -156
Hard Rock Bet −1.5 +130 +1.5 -155
Caesars −1.5 +130 +1.5 -155
Total by bookOverUnder
BetMGM 8 -120 8 +100
BetRivers 8.5 -105 8.5 -117
DraftKings 8.5 -102 8.5 -118
ESPN BET 8.5 +100 8.5 -120
Fanatics 8.5 +100 8.5 -120
FanDuel 8 -118 8 -104
Hard Rock Bet 8.5 +100 8.5 -120
Caesars 8 -120 8 +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 Chicago CubsMiami Marlins
Books consensus fair, de-vigged 54.3% 45.7%
Best book price incl. vig 55.2% 46.5%
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.

Trade the event contracts
The prediction-market prices on our game pages are tradeable markets.
Referral links — we may earn a reward if you sign up. 18+. Event contracts involve risk; this is not investment advice.

Back to today's board · The full record