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

Boston Red Sox at Pittsburgh Pirates

All Boston Red Sox predictions · All Pittsburgh Pirates predictions

MLB · Sunday, August 16, 2026 · 1:37 PM · Final: 3-8

The model's call
Boston Red Sox to win
Model confidence 50.8%
Books consensus 50.8%
Result Pittsburgh Pirates won model ✗
Identical on purpose: the model applies no adjustment to the books’ de-vigged consensus until a candidate signal proves itself in shadow audit — none has yet. Prediction markets 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 Boston Red SoxPittsburgh Pirates
BetMGM -110 -110
BetRivers -118 +104
DraftKings -105 -102
ESPN BET -111 -102
Fanatics -115 -105
FanDuel -106 -102
Hard Rock Bet -110 +100
Caesars -106 -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 Boston Red SoxPittsburgh Pirates
Books consensus fair, de-vigged 50.8% 49.2%
Best book price incl. vig 51.2% 49.0%
Kalshi contract price 51.5% 48.5%
Polymarket contract price 50.5% 49.5%
Markets average 51.0% 49.0%

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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