Colorado Rockies at Arizona Diamondbacks
MLB · Wednesday, August 12, 2026 · 3:40 PM
The model's call
Arizona Diamondbacks to win
Model confidence 61.5%
Books consensus 61.5%
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 | Colorado Rockies | Arizona Diamondbacks |
|---|---|---|
| BetMGM | +150 | -185 |
| DraftKings | +149 | -181 |
| ESPN BET | +145 | -170 |
| FanDuel | +144 | -172 |
| Hard Rock Bet | +155 | -165 |
| Caesars | +157 | -172 |
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 | Colorado Rockies | Arizona Diamondbacks |
|---|---|---|
| Books consensus fair, de-vigged | 38.5% | 61.5% |
| Best book price incl. vig | 38.9% | 62.3% |
| Kalshi contract price | 38.5% | 61.5% |
| Polymarket contract price | 38.0% | 62.0% |
| Markets average | 38.3% | 61.7% |
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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