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

Boston Red Sox at New York Yankees

MLB · Saturday, August 29, 2026 · 1:06 PM

The model's call
New York Yankees to win
Model confidence 53.3%
Books consensus 53.3%
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.

Line shop — latest moneyline by book

Best available price on each side is highlighted. Prices move; always confirm at the book.

Book Boston Red SoxNew York Yankees
BetMGM +105 -125
BetRivers +110 -129
DraftKings +110 -118
ESPN BET +105 -125
Fanatics +100 -120
FanDuel +110 -120
Hard Rock Bet +110 -120
Caesars +110 -121

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 right now.

Venue Boston Red SoxNew York Yankees
Books consensus fair, de-vigged 46.7% 53.3%
Best book price incl. vig 47.6% 54.1%
Kalshi contract price 47.0% 53.0%
Polymarket contract price 44.5% 55.5%
Markets average 45.8% 54.2%

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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