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

Chicago Cubs at Washington Nationals

All Chicago Cubs predictions · All Washington Nationals predictions

MLB · Thursday, August 13, 2026 · 4:06 PM · Final: 0-7

The model's call
Chicago Cubs to win
Model confidence 58.2%
Books consensus 58.2%
Result Washington Nationals 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 CubsWashington Nationals
BetMGM -155 +125
BetRivers -155 +135
DraftKings -146 +136
ESPN BET -148 +131
Fanatics -150 +125
FanDuel -146 +136
Hard Rock Bet -145 +135
Caesars -145 +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
Cubs −1.5
priced 45.6% to cover · 7 books, 1 on another number
Washington Nationals covered +1.5
Total · closing
O/U 8.5
priced 51.1% over · 8 books
Under 8.5 (7 scored)
Spread by book CubsNationals
BetMGM −1.5 +110 +1.5 -135
BetRivers −1 -125 +1 +104
DraftKings −1.5 +106 +1.5 -128
ESPN BET −1.5 +115 +1.5 -145
Fanatics −1.5 +110 +1.5 -135
FanDuel −1.5 +110 +1.5 -132
Hard Rock Bet −1.5 +115 +1.5 -125
Caesars −1.5 +110 +1.5 -130
Total by bookOverUnder
BetMGM 8.5 -115 8.5 -105
BetRivers 8.5 -117 8.5 -104
DraftKings 8.5 -115 8.5 -105
ESPN BET 8.5 -115 8.5 -105
Fanatics 8.5 -115 8.5 -105
FanDuel 8.5 -118 8.5 -104
Hard Rock Bet 8.5 -110 8.5 +100
Caesars 8.5 -115 8.5 -105

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 CubsWashington Nationals
Books consensus fair, de-vigged 58.2% 41.8%
Best book price incl. vig 59.2% 42.4%
Kalshi contract price 57.5% 42.5%
Polymarket contract price 57.5% 42.5%
Markets average 57.5% 42.5%

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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