Giants vs. Diamondbacks prediction: Why Arizona is favored to win Wednesday's MLB matchup [7/1/2026]
Get San Francisco Giants vs Arizona Diamondbacks predictions for MLB Wednesday.
The Arizona Diamondbacks and San Francisco Giants are scheduled to meet in MLB action at Chase Field on Wednesday, starting at 9:40 PM ET.
The Diamondbacks will have Zac Gallen (3-7, 6.15 ERA) as their starting pitcher, up against Trevor McDonald (2-6, 4.94 ERA) for the Giants.
Based on the latest simulations, Dimers' proven MLB model predicts the Diamondbacks as the most likely winner of the Giants vs. Diamondbacks game.
This article offers an expanded analysis of Wednesday's matchup, including best bets and picks.
Giants vs. Diamondbacks prediction: Who will win and cover?
Our independent predictive model gives the Diamondbacks a 55.6% chance of beating the Giants.
According to our model, the Giants (+1.5) have a 60.4% chance of covering the run line, while the over/under total of 9.5 runs has a 56.6% chance of going over,.
Giants vs. Diamondbacks odds [7/1/2026]
We have researched the best MLB odds in America for this game, which are listed here:
| Bet Type | Giants | Diamondbacks |
|---|---|---|
| Run Line | +1.5 (-180) | -1.5 (+158) |
| Moneyline | +114 | -130 |
| Total | o9.5 (-105) | u9.5 (-114) |
All odds are correct at the time of publication and are subject to change.
Giants vs. Diamondbacks picks and best bet
After matching our predictions against the best available odds, we can reveal our picks for each of the major markets. Plus, find our best bet for the game below:
| Bet Type | Pick | Bet Now |
|---|---|---|
| Run Line | Diamondbacks -1.5 | +158 |
| Moneyline | Diamondbacks | -130 |
| Total | Over 9.5 | -105 |
According to our best MLB 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.
Giants vs. Diamondbacks game-day updates and essential details
Wednesday's MLB matchup between the Diamondbacks and Giants at Chase Field is scheduled to begin at 9:40 PM ET.
- Who: San Francisco Giants vs. Arizona Diamondbacks
- Date: Wednesday, July 1, 2026
- Time: 9:40 PM ET/6:40PM PT
- Venue: Chase Field
Conclusion
We predict the Diamondbacks, with a 55.6% win probability, will likely beat the Giants in Wednesday's MLB matchup.
Additional tools and information for betting safely can be found in our Responsible Gambling hub.
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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.
