Arizona Diamondbacks at Colorado Rockies
All Arizona Diamondbacks predictions · All Colorado Rockies predictions
MLB · Wednesday, September 23, 2026 · 8:41 PM · Final: 5-3
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 Diamondbacks | Colorado Rockies |
|---|---|---|
| BetMGM | -170 | +140 |
| BetRivers | -175 | +145 |
| DraftKings | -168 | +139 |
| ESPN BET | -165 | +140 |
| Fanatics | -170 | +140 |
| FanDuel | -164 | +138 |
| Hard Rock Bet | -165 | +135 |
| Caesars | -162 | +139 |
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 by book | Diamondbacks | Rockies |
|---|---|---|
| BetMGM | −1.5 -110 | +1.5 -110 |
| BetRivers | −1.5 -115 | +1.5 -106 |
| DraftKings | −1.5 -109 | +1.5 -111 |
| ESPN BET | −1.5 -105 | +1.5 -115 |
| Fanatics | −1.5 -110 | +1.5 -110 |
| FanDuel | −1.5 -106 | +1.5 -113 |
| Hard Rock Bet | −1.5 -110 | +1.5 -110 |
| Caesars | −1.5 -107 | +1.5 -112 |
| Total by book | Over | Under |
|---|---|---|
| BetMGM | 11 -120 | 11 +100 |
| BetRivers | 11.5 -106 | 11.5 -115 |
| DraftKings | 11 -114 | 11 -105 |
| ESPN BET | 10.5 -135 | 10.5 +115 |
| Fanatics | 11 -115 | 11 -105 |
| FanDuel | 11.5 +104 | 11.5 -128 |
| Hard Rock Bet | 11.5 +110 | 11.5 -130 |
| Caesars | 11.5 +105 | 11.5 -125 |
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 Diamondbacks | Colorado Rockies |
|---|---|---|
| Books consensus fair, de-vigged | 59.9% | 40.1% |
| Best book price incl. vig | 61.8% | 40.8% |
| Kalshi contract price | 60.5% | 39.5% |
| Polymarket contract price | 60.5% | 39.5% |
| Markets average | 60.5% | 39.5% |
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.