Marlins vs. Phillies prediction: Why Philadelphia is favored to win Monday's MLB matchup [8/17/2026]

The Philadelphia Phillies and Miami Marlins will meet in MLB action at Citizens Bank Park on Monday, starting at 6:40 PM ET.

Cristopher Sánchez (15-4, 2.54 ERA) will start on the mound for the Phillies, up against Janson Junk (6-7, 4.41 ERA) for the Marlins.

Dimers' proven MLB model projects the Phillies as the most likely winner in this Marlins vs. Phillies prediction.

This article offers further insights into Monday's matchup, including best bets and picks.

Marlins vs. Phillies prediction: Who will win and cover?

Using powerful machine learning and data analysis, we have simulated the result of Monday's MLB matchup between the Marlins and Phillies, forming part of our MLB predictions coverage.

Our leading predictive model currently gives the Phillies a 69.0% chance of defeating the Marlins.

According to our model, the Phillies (-1.5) have a 51.9% chance of covering the run line, while the 8.5-run over/under has a 52.0% chance of staying under,.

Marlins vs. Phillies odds [8/17/2026]

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

• Run Line: Marlins +1.5 (+113) / Phillies -1.5 (-115)
• Moneyline: Marlins +232, Phillies -233

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

Marlins vs. Phillies 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: Marlins +1.5 @ +113 via DraftKings
• Moneyline: Marlins @ +232 via DraftKings
• Total: Under 8.5 @ -108 via Novig

According to our MLB best bets, the top play to make on this game is Marlins +1.5 at the spread.

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

Marlins vs. Phillies game-day updates and essential details

Monday's MLB action between the Phillies and Marlins at Citizens Bank Park is scheduled to start at 6:40 PM ET.

• Who: Miami Marlins vs. Philadelphia Phillies
• Date: Monday, August 17, 2026
• Time: 6:40 PM ET/3:40PM PT
• Venue: Citizens Bank Park

Conclusion

We predict the Phillies, with a 69.0% win probability, will likely beat the Marlins in Monday's MLB matchup.

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