The Colorado Rockies host the Arizona Diamondbacks on September 23, 2026. First pitch from Coors Field is scheduled for 8:40 p.m. ET. The game will be broadcast on COLR.
The Diamondbacks are favored by -160 on the moneyline and by -1.5 on the run line. The Rockies are +135 on the moneyline and +1.5 on the run line. The total is set at 11 runs.
Find our MLB picks and Diamondbacks vs Rockies prediction below, as well as probable pitchers, weather report, and more.
Diamondbacks vs Rockies Prediction
- Diamondbacks vs Rockies Pick: Rockies F5 ML (+115)
Our Diamondbacks vs Rockies best bet is Colorado to lead after five innings. Make sure to find the best odds by checking our live MLB odds page, and download the Action Network app for more picks and analysis.
Diamondbacks vs Rockies Odds
| Diamondbacks Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
-1.5 -105 | 11 -120o / 100u | -160 |
| Rockies Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
+1.5 -115 | 11 -120o / 100u | +135 |
- Diamondbacks vs Rockies moneyline: Diamondbacks -160, Rockies +135
- Diamondbacks vs Rockies over/under: 11 (-120o / +100u)
- Diamondbacks vs Rockies spread: Diamondbacks -1.5 (-105), Rockies +1.5 (-115)
Diamondbacks vs Rockies Probable Pitchers
| Merrill Kelly (RHP, ARI) | Stat | Mason Adams (RHP, COL) |
|---|---|---|
| 9-14 | W-L | 0-1 |
| -0.2 | fWAR (FanGraphs) | -0.1 |
| 5.00 / 6.45 | ERA / xERA | 5.09 / 5.83 |
| 5.40 / 4.92 | FIP / xFIP | 6.19 / 4.50 |
| 6.1 | K-BB% | 10.9 |
| 40.1 | GB% | 36.9 |
| .285 | BABIP | .339 |
| 89 | Stuff+ | 94 |
| 101 | Location+ | 98 |
Diamondbacks vs Rockies MLB Betting Preview
Sean Zerillo's projections show solid value on the Rockies moneyline for the first five innings against the Diamondbacks, with a 4.6% edge.
If you want to dive deeper into this game, check out BARTOLO, Zerillo's new PRO baseball tool that gives you access to all the input data he uses to project games every day.
Diamondbacks vs Rockies Pick, Betting Analysis
Even though Arizona is the clear favorite here, the key to backing Colorado early is the huge difference in the reliever corps between the two teams.
Zerillo has the Diamondbacks at the top of his MLB bullpen rankings, while the Rockies are dead last, as you can see here.
That contrast doesn't show up when you compare starters, as Merrill Kelly ranks 178th while Mason Adams takes the 155th spot.
With Colorado doing much better at home (32-47) than on the road (25-53), backing them to lead after five innings, before the bullpens come into action, is a smart play.
Pick: Rockies F5 ML (+115, BetMGM)
