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Read Article Nationals vs. Padres prediction: San Diego favored to win Tuesday's MLB matchup [9/8/2026]
Updated: | First published:
Written by Dave Garofolo, Content Producer
Dimers' simulation model projects a 62.4% win probability for the Padres at Petco Park.
The San Diego Padres will face the Washington Nationals in MLB action at Petco Park on Tuesday, commencing at 9:40 PM ET.
The Padres will send Casey Mize (5-9, 3.64 ERA) to the mound, pitting him against Riley Cornelio (2-2, 5.96 ERA) for the Nationals.
Dimers' proven MLB model projects the Padres as the most likely winner in this Nationals vs. Padres prediction.
This article offers an expanded analysis of Tuesday's matchup, including best bets and picks.
Nationals vs. Padres prediction and odds
Using innovative machine learning and data, we have re-simulated the result of Tuesday's MLB matchup between the Nationals and Padres, forming part of our MLB predictions coverage.
Our leading predictive model currently gives the Padres a 62.4% chance of defeating the Nationals.
According to our model, the Nationals (+1.5) have a 54.9% chance of covering the run line, while the 8-run over/under has a 54.7% 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: Nationals +1.5 (-127) / Padres -1.5 (+127)
- Moneyline: Nationals +174, Padres -178
- Total: Over/Under 8 (-105/-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 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:
- Run line: Padres -1.5 @ 44¢ via Polymarket
- Moneyline: Nationals @ 36¢ via Novig
- Total: Over 8 @ -105 via bet365
According to our MLB best bets, the top play to make on this game is Over 8 total runs.
These picks are based on our probabilities matched against the implied probabilities from the current available odds.
Game info & first pitch details
Tuesday's MLB game between the Padres and Nationals at Petco Park is scheduled to commence at 9:40 PM ET.
- Who: Washington Nationals vs. San Diego Padres
- Date: Tuesday, September 8, 2026
- Time: 9:40 PM ET/6:40PM PT
- Venue: Petco Park
Conclusion
We predict the Padres, with a 62.4% win probability, will likely beat the Nationals in Tuesday's MLB matchup.
Additional tools and information for betting safely can be found in our Responsible Gambling hub.
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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