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 · Tuesday, August 11, 2026 · 6:46 PM · Final: 8-6

The model's call
Chicago Cubs to win
Model confidence 62.2%
Books consensus 62.2%
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 Chicago CubsWashington Nationals
BetMGM -185 +150
BetRivers -190 +155
DraftKings -167 +155
ESPN BET -185 +155
Fanatics -180 +150
FanDuel -178 +162
Hard Rock Bet -170 +160
Caesars -177 +162

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 50.0% to cover · 8 books
Chicago Cubs covered −1.5
Total · closing
O/U 9
priced 50.5% over · 6 books, 2 on another number
Over 9 (14 scored)
Spread by book CubsNationals
BetMGM −1.5 -110 +1.5 -110
BetRivers −1.5 -114 +1.5 -107
DraftKings −1.5 -108 +1.5 -111
ESPN BET −1.5 -110 +1.5 -110
Fanatics −1.5 -110 +1.5 -110
FanDuel −1.5 -111 +1.5 -108
Hard Rock Bet −1.5 -105 +1.5 -105
Caesars −1.5 -110 +1.5 -110
Total by bookOverUnder
BetMGM 9 -115 9 -105
BetRivers 9 -122 9 -117
DraftKings 9 -112 9 -108
ESPN BET 9.5 +115 9.5 -135
Fanatics 9 -110 9 -110
FanDuel 9 -115 9 -105
Hard Rock Bet 9.5 +120 9.5 -130
Caesars 9 -110 9 -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 Chicago CubsWashington Nationals
Books consensus fair, de-vigged 62.2% 37.8%
Best book price incl. vig 62.5% 38.2%
Kalshi contract price 62.5% 37.5%
Polymarket contract price 62.5% 37.5%
Markets average 62.5% 37.5%

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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