Seattle Mariners vs Philadelphia Phillies Prediction – 8/19/2025
The Philadelphia Phillies took the first game of their series against the Seattle Mariners on Monday night. Philadelphia will look for another win at home over Seattle on Tuesday. The Phillies have a starting pitching advantage in that game and will look to use it to their advantage in this matchup. I have broken down this game from all angles and you can find my Mariners vs Phillies prediction below.
Our Mariners vs Phillies Pick
- Pick: Over 8.5
- Confidence: 4/5
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Game Snapshot
- Matchup: Seattle Mariners vs Philadelphia Phillies
- Date & Time: Tuesday, August 19, 2025, 6:45 p.m. ET
- Starting Pitchers:
- Seattle – Bryce Miller (2-5, 5.73 ERA)
- Philadelphia – Cristopher Sanchez (11-4, 2.45 ERA)
- Stadium: Citizens Bank Park, Philadelphia, PA
- Broadcast: NBCS-PH and ROOT Sports NW
Key Storylines
Pitching Matchup
Philadelphia has the upper hand in the starting pitching matchup on Tuesday. The Phillies will send Cristopher Sanchez to the mound in this game. He has an ERA under 2.50 for the season and will look to stay sharp in this contest. Seattle will give Bryce Miller the start in this game. Miller is 2-5 and has a 5.73 ERA. He could be in trouble against a Phillies lineup loaded with talent.
Key Players
- Trea Turner had four hits for the Phillies on Monday and will be counted on to deliver for them on offense again here.
- Cal Raleigh leads the league in home runs with 47 on the year. Seattle will need him to produce to help get Sanchez out of this game as quickly as possible.
Recent Team Streaks
- The Mariners have lost three games in a row and four of their last five.
- Philadelphia has won two consecutive games and three of their last four.
Best Player Props
| Category | Player | Prop |
|---|---|---|
| Home Runs | Kyle Schwarber | Over 0.5 |
| Strikeouts | Ranger Suárez | Under 5.5 |
| Total Bases | Cal Raleigh | Over 1.5 |
Betting Trends & H2H
- The Phillies have a 1-0 lead in their season series with the Mariners so far.
- There were 19 total runs scored in the opening game of this series. That game flew over its total.
- Mariners games have gone over their totals 54.6% of the time. That is tied for the third-highest percentage of overs in the league this season.
Mariners vs Phillies Model Projection
Score Projection: Phillies 5 – Mariners 4
Win Probability: Phillies 54%, Mariners 46%
Final Thoughts
We had an incredibly high-scoring game between these teams in their series opener on Monday. I think we get another relatively high-scoring game in Tuesday’s rematch. I am going to take the over in this matchup. Sanchez is a very good starting pitcher. But the Mariners have enough offensive firepower to put up a few runs and I expect the Phillies to do enough on their end to push us over the number.
