Phillies vs. Diamondbacks prediction: Why Arizona is favored to win Wednesday's MLB matchup [9/2/2026]
Dimers' simulation model projects a 50.3% win probability for the Diamondbacks at Chase Field.

MLB action continues on Wednesday at 3:40 PM ET as the Philadelphia Phillies lock horns with the Arizona Diamondbacks at Chase Field.
The Diamondbacks will send Taylor Clarke (2-3, 2.60 ERA) to the mound, while the Phillies are going with Andrew Painter (3-8, 5.95 ERA).
Dimers' proven MLB model gives the Diamondbacks a slight edge with a 50.3% win probability over the Phillies.
This article offers a complete Phillies vs. Diamondbacks prediction, including best bets and picks.
Phillies vs. Diamondbacks prediction and odds
Our independent predictive model gives the Diamondbacks a 50.3% chance of defeating the Phillies.
According to our model, the Diamondbacks (+1.5) have a 61.0% chance of covering the run line, while the 9.5-run over/under has a 55.6% 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: Phillies -1.5 (+145) / Diamondbacks +1.5 (-150)
- Moneyline: Phillies -108, Diamondbacks +105
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: Diamondbacks +1.5 @ -150 via DraftKings
- Moneyline: Diamondbacks @ +105 via DraftKings
- Total: Over 9.5 @ +117 via Novig
According to our MLB best bets, the top play to make on this game is Over 9.5 total runs.
These picks are based on our probabilities matched against the implied probabilities from the sportsbook odds.
Game info & first pitch details
Wednesday's MLB game between the Diamondbacks and Phillies at Chase Field is scheduled to start at 3:40 PM ET.
- Who: Philadelphia Phillies vs. Arizona Diamondbacks
- Date: Wednesday, September 2, 2026
- Time: 3:40 PM ET/12:40PM PT
- Venue: Chase Field
Conclusion
We predict the Diamondbacks, with a 50.3% win probability, will likely beat the Phillies in Wednesday's MLB matchup.
Additional tools and information for betting safely can be found in our Responsible Gambling hub.




