Diamondbacks vs. Nationals prediction: Why Arizona is favored to win Sunday's MLB matchup [7/26/2026]

The Washington Nationals will square off with the Arizona Diamondbacks, in what is expected to be a close MLB game, at Nationals Park on Sunday, commencing at 1:35 PM ET.

Miles Mikolas (3-7, 5.60 ERA) will be the starting pitcher for the Nationals, while the Diamondbacks are going with Kohl Drake (0-0, 1.80 ERA).

Based on updated simulations, Dimers' advanced MLB model gives the Diamondbacks a slight edge with a 53.5% win probability over the Nationals.

This article offers an expanded analysis of Sunday's Diamondbacks vs. Nationals matchup, including best bets and picks.

Diamondbacks vs. Nationals prediction: Who will win and cover?

Using innovative machine learning and statistical analysis, we have simulated the result of Sunday's MLB matchup between the Diamondbacks and Nationals, forming part of our MLB predictions coverage.

Our independent predictive model currently gives the Diamondbacks a 53.5% chance of beating the Nationals.

According to our model, the Nationals (+1.5) have a 56.7% chance of covering the run line, while the 10.5-run over/under has a 52.5% chance of going over,.

Diamondbacks vs. Nationals odds [7/26/2026]

We have sourced the best MLB odds in America for this game, which are listed here:

Bet Type	Diamondbacks	Nationals
Run Line	-1.5 (+144)	+1.5 (-147)
Moneyline	-108	+108
Total	o10.5 (+111)	u10.5 (-113)

All odds are correct at the time of publication and are subject to change.

Diamondbacks vs. Nationals picks and best bet

After matching our predictions against the best current odds, we can reveal our picks for each of the major markets in this matchup. Plus, find our best bet for the game below:

Bet Type	Pick	Bet Now
Run Line	Diamondbacks -1.5	+144
Moneyline	Diamondbacks	-108
Total	Over 10.5	+111

According to our MLB best bets, the top play to make on this game is Over 10.5 total runs.

These picks are based on our probabilities matched against the implied probabilities from the sportsbook odds.

Diamondbacks vs. Nationals game-day updates and essential details

Sunday's MLB matchup between the Nationals and Diamondbacks at Nationals Park is scheduled to begin at 1:35 PM ET.

• Who: Arizona Diamondbacks vs. Washington Nationals
• Date: Sunday, July 26, 2026
• Time: 1:35 PM ET/10:35AM PT
• Venue: Nationals Park

Conclusion

We predict the Diamondbacks, with a 53.5% win probability, will likely beat the Nationals in Sunday's MLB matchup.

Additional tools and information for betting safely can be found in our Responsible Gambling hub.