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

Kansas City Royals at Pittsburgh Pirates

All Kansas City Royals predictions · All Pittsburgh Pirates predictions

MLB · Saturday, September 19, 2026 · 6:41 PM · Final: 5-6

The model's call
Pittsburgh Pirates to win
Model confidence 51.6%
Books consensus 51.6%
Result Pittsburgh Pirates 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 Kansas City RoyalsPittsburgh Pirates
BetMGM -102 -118
BetRivers +102 -121
DraftKings -101 -119
ESPN BET +100 -120
Fanatics -105 -115
FanDuel -102 -116
Hard Rock Bet -105 -115
Caesars -103 -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
Royals −1.5
priced 36.1% to cover · 8 books
Pittsburgh Pirates covered +1.5
Total · closing
O/U 7.5
priced 53.1% over · 4 books, 4 on another number
opened 8.5
Over 7.5 (11 scored)
Spread by book RoyalsPirates
BetMGM −1.5 +165 +1.5 -200
BetRivers −1.5 +165 +1.5 -205
DraftKings −1.5 +166 +1.5 -202
ESPN BET −1.5 +165 +1.5 -200
Fanatics −1.5 +165 +1.5 -205
FanDuel −1.5 +152 +1.5 -184
Hard Rock Bet −1.5 +165 +1.5 -200
Caesars −1.5 +162 +1.5 -193
Total by bookOverUnder
BetMGM 8 -105 8 -115
BetRivers 8 -113 8 -125
DraftKings 8 -104 8 -115
ESPN BET 7.5 -125 7.5 +105
Fanatics 8 -105 8 -115
FanDuel 7.5 -128 7.5 +104
Hard Rock Bet 7.5 -120 7.5 +100
Caesars 7.5 -122 7.5 +104

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 Kansas City RoyalsPittsburgh Pirates
Books consensus fair, de-vigged 48.4% 51.6%
Best book price incl. vig 49.5% 53.5%
Kalshi contract price 48.5% 51.5%
Polymarket contract price 47.5% 52.5%
Markets average 48.0% 52.0%

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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