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

Washington Nationals at Detroit Tigers

All Washington Nationals predictions · All Detroit Tigers predictions

MLB · Wednesday, September 23, 2026 · 1:11 PM · Final: 4-2

The model's call
Detroit Tigers to win
Model confidence 60.2%
Books consensus 60.2%
Result Washington Nationals 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 Washington NationalsDetroit Tigers
BetMGM +140 -170
BetRivers +150 -182
DraftKings +139 -168
ESPN BET +145 -170
Fanatics +140 -170
FanDuel +140 -166
Hard Rock Bet +145 -170
Caesars +141 -170

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
Tigers −1.5
priced 41.7% to cover · 8 books
Washington Nationals covered +1.5
Total · closing
O/U 7.5
priced 51.1% over · 7 books, 1 on another number
Under 7.5 (6 scored)
Spread by book NationalsTigers
BetMGM +1.5 -150 −1.5 +125
BetRivers +1.5 -141 −1.5 +116
DraftKings +1.5 -157 −1.5 +130
ESPN BET +1.5 -155 −1.5 +130
Fanatics +1.5 -160 −1.5 +130
FanDuel +1.5 -162 −1.5 +134
Hard Rock Bet +1.5 -150 −1.5 +130
Caesars +1.5 -154 −1.5 +131
Total by bookOverUnder
BetMGM 7.5 -110 7.5 -110
BetRivers 7.5 -117 7.5 -105
DraftKings 7.5 -109 7.5 -111
ESPN BET 7.5 -115 7.5 -105
Fanatics 7.5 -110 7.5 -110
FanDuel 7.5 -115 7.5 -105
Hard Rock Bet 7.5 -115 7.5 -105
Caesars 8 +100 8 -120

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 Washington NationalsDetroit Tigers
Books consensus fair, de-vigged 39.8% 60.2%
Best book price incl. vig 40.0% 62.4%
Kalshi contract price 39.5% 60.5%
Polymarket contract price 38.5% 61.5%
Markets average 39.0% 61.0%

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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