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

Chicago Cubs at Kansas City Royals

All Chicago Cubs predictions · All Kansas City Royals predictions

MLB · Friday, August 7, 2026 · 8:11 PM · Final: 6-4

The model's call
Chicago Cubs to win
Model confidence 60.9%
Books consensus 60.9%
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 CubsKansas City Royals
BetMGM -175 +145
BetRivers -186 +163
DraftKings -165 +153
ESPN BET -170 +145
Fanatics -170 +140
FanDuel -164 +150
Hard Rock Bet -160 +150
Caesars -163 +153

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 49.1% to cover · 8 books
Chicago Cubs covered −1.5
Total · closing
O/U 9.5
priced 47.1% over · 4 books, 4 on another number
Over 9.5 (10 scored)
Spread by book CubsRoyals
BetMGM −1.5 -105 +1.5 -115
BetRivers −1.5 -117 +1.5 -104
DraftKings −1.5 -107 +1.5 -112
ESPN BET −1.5 -105 +1.5 -115
Fanatics −1.5 -105 +1.5 -115
FanDuel −1.5 -106 +1.5 -113
Hard Rock Bet −1.5 +100 +1.5 -110
Caesars −1.5 -110 +1.5 -110
Total by bookOverUnder
BetMGM 9 -115 9 -105
BetRivers 9.5 +100 9.5 -121
DraftKings 9 -117 9 -103
ESPN BET 9.5 +110 9.5 -130
Fanatics 9 -120 9 +100
FanDuel 9.5 +100 9.5 -122
Hard Rock Bet 9.5 +110 9.5 -120
Caesars 9 -115 9 -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 CubsKansas City Royals
Books consensus fair, de-vigged 60.9% 39.1%
Best book price incl. vig 61.5% 38.0%
Kalshi contract price 61.5% 38.5%
Polymarket contract price 61.5% 38.5%
Markets average 61.5% 38.5%

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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