Marlins vs. Phillies prediction: Why Philadelphia is favored to win Tuesday's MLB matchup [8/18/2026]
Get Miami Marlins vs Philadelphia Phillies predictions for MLB Tuesday.

MLB action continues on Tuesday at 6:40 PM ET as the Miami Marlins square off with the Philadelphia Phillies at Citizens Bank Park.
Zack Wheeler (10-4, 2.89 ERA) will start on the mound for the Phillies, pitting him against Cade Gibson (2-0, 5.61 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 Tuesday's matchup, including best bets and picks.
For more, dive into Zack Wheeler's pitching projections.
Marlins vs. Phillies prediction: Who will win and cover?
Our independent predictive model gives the Phillies a 68.1% chance of defeating the Marlins.
According to our model, the Marlins (+1.5) have a 50.7% chance of covering the run line, while the over/under total of 8.5 runs has a 51.2% chance of staying under,.
Marlins vs. Phillies odds [8/18/2026]
We have sourced the best MLB odds in America for this game, which are listed here:
- Run Line: Marlins +1.5 (-104) / Phillies -1.5 (-102)
- Moneyline: Marlins +220, Phillies -213
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 @ -104 via DraftKings
- Moneyline: Marlins @ +220 via DraftKings
- Total: Over 8.5 @ +113 via Novig
According to our best MLB bets, the top play to make on this game is Over 8.5 total runs.
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
Tuesday's MLB action between the Phillies and Marlins at Citizens Bank Park is scheduled to commence at 6:40 PM ET.
- Who: Miami Marlins vs. Philadelphia Phillies
- Date: Tuesday, August 18, 2026
- Time: 6:40 PM ET/3:40PM PT
- Venue: Citizens Bank Park
Conclusion
We predict the Phillies, with a 68.1% win probability, will likely beat the Marlins in Tuesday's MLB matchup.
Additional tools and information for betting safely can be found in our Responsible Gambling hub.
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