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

Tampa Bay Rays at Atlanta Braves

All Tampa Bay Rays predictions · All Atlanta Braves predictions

MLB · Tuesday, September 8, 2026 · 7:16 PM · Final: 7-1

The model's call
Atlanta Braves to win
Model confidence 51.4%
Books consensus 51.4%
Result Tampa Bay Rays 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 Tampa Bay RaysAtlanta Braves
BetMGM -102 -118
BetRivers -109 -110
DraftKings -103 -117
ESPN BET +100 -113
Fanatics -105 -115
FanDuel -102 -116
Hard Rock Bet -105 -115
Caesars +101 -111

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
Rays −1.5
priced 37.4% to cover · 6 books, 1 on another number
Tampa Bay Rays covered −1.5
Total · closing
O/U 8.5
priced 51.0% over · 8 books
Under 8.5 (8 scored)
Spread by book RaysBraves
BetRivers −1.5 +155 +1.5 -190
DraftKings −1.5 +162 +1.5 -197
ESPN BET −1.5 +165 +1.5 -200
Fanatics −1.5 +155 +1.5 -190
FanDuel −1.5 +146 +1.5 -178
Hard Rock Bet −1.5 +155 +1.5 -190
Caesars +1.5 -210 −1.5 +175
Total by bookOverUnder
BetMGM 8.5 -115 8.5 -105
BetRivers 8.5 -105 8.5 -117
DraftKings 8.5 -115 8.5 -105
ESPN BET 8.5 -115 8.5 -105
Fanatics 8.5 -110 8.5 -110
FanDuel 8.5 -114 8.5 -106
Hard Rock Bet 8.5 -115 8.5 -105
Caesars 8.5 -105 8.5 -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 Tampa Bay RaysAtlanta Braves
Books consensus fair, de-vigged 48.6% 51.4%
Best book price incl. vig 49.8% 52.4%
Kalshi contract price 48.5% 51.5%
Polymarket contract price 48.5% 51.5%
Markets average 48.5% 51.5%

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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