Aug 25, 2026
Reds vs. Giants prediction: San Francisco favored to win Tuesday's MLB matchup [8/25/2026]
Read Article Phillies vs. Mariners prediction: Seattle favored to win Tuesday's MLB matchup [8/25/2026]
Updated: | First published:
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Written by Jason Bevilacqua, Head of Content and Communities
Get Philadelphia Phillies vs Seattle Mariners predictions for MLB Tuesday.
The Seattle Mariners will square off with the Philadelphia Phillies, in what is expected to be a tight MLB game, at T-Mobile Park on Tuesday, starting at 9:40 PM ET.
The Mariners will have George Kirby (8-10, 4.18 ERA) as their starting pitcher, while the Phillies will counter with Aaron Nola (5-9, 5.12 ERA).
Dimers' advanced MLB model gives the Mariners a slight edge with a 51.4% win probability over the Phillies.
This article offers a complete Phillies vs. Mariners prediction, including best bets and picks.
Phillies vs. Mariners prediction: Who will win and cover?
Using trusted machine learning and data, we have simulated the outcome of Tuesday's MLB game between the Phillies and Mariners, forming part of our MLB predictions coverage.
Our independent predictive model gives the Mariners a 51.4% chance of defeating the Phillies.
According to our model, the Mariners (+1.5) have a 63.6% chance of covering the run line, while the 8.5-run over/under has a 50.1% chance of going over.
Phillies vs. Mariners odds [8/25/2026]
We have researched the best MLB odds in America for this game, which are listed here:
- Run Line: Phillies -1.5 (+170) / Mariners +1.5 (-170)
- Moneyline: Phillies +100, Mariners -102
All odds are correct at the time of publication and are subject to change.
Phillies vs. Mariners 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: Mariners +1.5 @ -170 via DraftKings
- Moneyline: Mariners @ -102 via DraftKings
- Total: Over 8.5 @ +117 via Polymarket
According to our MLB best 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.
Phillies vs. Mariners game-day updates and essential details
Tuesday's MLB game between the Mariners and Phillies at T-Mobile Park is scheduled to begin at 9:40 PM ET.
- Who: Philadelphia Phillies vs. Seattle Mariners
- Date: Tuesday, August 25, 2026
- Time: 9:40 PM ET/6:40PM PT
- Venue: T-Mobile Park
Conclusion
We predict the Mariners, with a 51.4% win probability, will likely beat the Phillies in Tuesday's MLB matchup.
Additional tools and information for betting safely can be found in our Responsible Gambling hub.
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Jason Bevilacqua, an expert in MLB, NHL, NBA, MLS, and NFL, delivers game previews, best bets, and props. Since 2020, as Head of Social and Community at Dimers, he has contributed insightful articles utilizing data-driven models and simulations.
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