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

Pittsburgh Pirates at Chicago Cubs

All Pittsburgh Pirates predictions · All Chicago Cubs predictions

MLB · Saturday, September 12, 2026 · 2:21 PM · Final: 3-4

The model's call
Chicago Cubs to win
Model confidence 53.2%
Books consensus 53.2%
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 Pittsburgh PiratesChicago Cubs
BetMGM +105 -130
BetRivers +100 -120
DraftKings +109 -132
ESPN BET +105 -125
Fanatics +105 -125
FanDuel +108 -126
Hard Rock Bet +105 -125
Caesars +105 -125

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 37.9% to cover · 6 books, 2 on another number
opened Pirates −1.5
Pittsburgh Pirates covered +1.5
Total · closing
O/U 9.5
priced 50.0% over · 8 books
opened 8.5
Under 9.5 (7 scored)
Spread by book PiratesCubs
BetMGM +1.5 -185 −1.5 +150
BetRivers −1.5 +155 +1.5 -195
DraftKings +1.5 -183 −1.5 +151
ESPN BET +1.5 -190 −1.5 +160
Fanatics −1.5 +155 +1.5 -190
FanDuel +1.5 -176 −1.5 +146
Hard Rock Bet +1.5 -185 −1.5 +155
Caesars +1.5 -190 −1.5 +158
Total by bookOverUnder
BetMGM 9.5 -110 9.5 -110
BetRivers 9.5 -109 9.5 -112
DraftKings 9.5 -112 9.5 -108
ESPN BET 9.5 -110 9.5 -110
Fanatics 9.5 -115 9.5 -105
FanDuel 9.5 -105 9.5 -115
Hard Rock Bet 9.5 -110 9.5 -110
Caesars 9.5 -110 9.5 -110

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 Cubs
Books consensus fair, de-vigged 46.8% 53.2%
Best book price incl. vig 47.8% 54.5%
Kalshi contract price 46.5% 53.5%
Polymarket contract price 46.5% 53.5%
Markets average 46.5% 53.5%

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