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

Arizona Diamondbacks at Houston Astros

All Arizona Diamondbacks predictions · All Houston Astros predictions

MLB · Friday, September 4, 2026 · 8:11 PM · Final: 1-3

The model's call
Houston Astros to win
Model confidence 54.3%
Books consensus 54.3%
Result Houston Astros 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 Arizona DiamondbacksHouston Astros
BetMGM +105 -130
BetRivers +114 -130
DraftKings +109 -131
ESPN BET +113 -128
Fanatics +105 -125
FanDuel +110 -130
Hard Rock Bet +110 -130
Caesars +115 -125

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
Astros −1.5
priced 37.3% to cover · 8 books
Houston Astros covered −1.5
Total · closing
O/U 8.5
priced 53.2% over · 5 books, 3 on another number
Under 8.5 (4 scored)
Spread by book DiamondbacksAstros
BetMGM +1.5 -190 −1.5 +155
BetRivers +1.5 -205 −1.5 +160
DraftKings +1.5 -191 −1.5 +157
ESPN BET +1.5 -180 −1.5 +150
Fanatics +1.5 -185 −1.5 +150
FanDuel +1.5 -196 −1.5 +162
Hard Rock Bet +1.5 -185 −1.5 +155
Caesars +1.5 -190 −1.5 +158
Total by bookOverUnder
BetMGM 8.5 -130 8.5 +100
BetRivers 8.5 -121 8.5 +102
DraftKings 9 -104 9 -116
ESPN BET 8.5 -130 8.5 +110
Fanatics 9 -105 9 -115
FanDuel 8.5 -130 8.5 +106
Hard Rock Bet 8.5 -125 8.5 +105
Caesars 9 -105 9 -115

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 Arizona DiamondbacksHouston Astros
Books consensus fair, de-vigged 45.7% 54.3%
Best book price incl. vig 46.5% 55.6%
Kalshi contract price 45.7% 54.3%
Polymarket contract price 46.5% 53.5%
Markets average 46.1% 53.9%

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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