Sep 23, 2026
Twins vs. Giants prediction: Minnesota favored to win Wednesday's MLB matchup [9/23/2026]
Read Article Diamondbacks vs. Rockies prediction: Why Arizona is favored to win Wednesday's MLB matchup [9/23/2026]
Updated: | First published:
Written by Dave Garofolo, Content Producer
Dimers' simulation model projects a 58.7% win probability for the Diamondbacks at Coors Field.
The Colorado Rockies will square off with the Arizona Diamondbacks in MLB action at Coors Field on Wednesday, beginning at 8:40 PM ET.
The Rockies will start Mason Adams (0-1, 5.09 ERA), up against Merrill Kelly (9-14, 5.00 ERA) for the Diamondbacks.
Dimers' advanced MLB model projects the Diamondbacks as the most likely winner in this Diamondbacks vs. Rockies prediction.
This article offers further insights into Wednesday's matchup, including best bets and picks.
Diamondbacks vs. Rockies prediction and odds
Using innovative machine learning and data analysis, we have re-simulated the result of Wednesday's MLB game between the Diamondbacks and Rockies, forming part of our MLB predictions coverage.
Our famous predictive model currently gives the Diamondbacks a 58.7% chance of defeating the Rockies. According to our model, the Rockies (+1.5) have a 51.4% chance of covering the run line, while the over/under total of 11.5 runs has a 50.2% chance of going over.
Latest betting odds
We have sourced the best MLB odds in America for this game, which are listed here:
- Run Line: Diamondbacks -1.5 (+100) / Rockies +1.5 (-104)
- Moneyline: Diamondbacks -144, Rockies +144
- Total: Over/Under 11.5 (+117/-117)
All odds are correct at the time of publication and are subject to change.
Model picks and best bet
After matching our predictions against the best available odds, we can reveal our picks for each of the major markets in this matchup. Plus, find our best bet for the game below:
- Run line: Rockies +1.5 @ 51¢ via Novig
- Moneyline: Rockies @ 41¢ via Polymarket
- Total: Over 11.5 @ 46¢ via Polymarket
According to our best MLB bets, the top play to make on this game is Over 11.5 total runs.
These picks are based on our probabilities matched against the implied probabilities from the current available odds.
Game info & first pitch details
Wednesday's MLB matchup between the Rockies and Diamondbacks at Coors Field is scheduled to start at 8:40 PM ET.
- Who: Arizona Diamondbacks vs. Colorado Rockies
- Date: Wednesday, September 23, 2026
- Time: 8:40 PM ET/5:40PM PT
- Venue: Coors Field
Conclusion
We predict the Diamondbacks, with a 58.7% win probability, will likely beat the Rockies in Wednesday's MLB matchup.
Additional tools and information for betting safely can be found in our Responsible Gambling hub.
This article's predictions and probabilities are generated by Dimers' proprietary MLB prediction model. Our editorial team reviews the resulting content for accuracy and presentation before publication.
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Dave Garofolo uses sophisticated AI-driven analytics to make predictions and evaluate player performances in the NBA, MLB, NFL, NHL, NCAAM, and PGA TOUR tournaments, crafting insightful game and prop previews.
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