Seattle Mariners vs. Philadelphia Phillies: Game Preview, Pitching Matchup & Key Players – August 18, 2025

Monday, August 18th, 2025

Seattle Mariners vs. Philadelphia Phillies: Game Preview for August 18, 2025

The Seattle Mariners (68-57, second in the AL West) travel to Citizens Bank Park to take on the Philadelphia Phillies (71-53, first in the NL East) on Monday, kicking off a compelling three-game series between two playoff-contending teams. First pitch is scheduled for 6:45 p.m. EDT.

Pitching Matchup

The Mariners will send Logan Gilbert (3-4, 3.31 ERA, 0.98 WHIP, 124 strikeouts) to the mound, while the Phillies counter with Ranger Suarez (8-6, 3.28 ERA, 1.18 WHIP, 101 strikeouts). Both pitchers have provided consistency for their respective rotations, making for an intriguing duel.

Odds favor the Mariners slightly at -112, with the Phillies at -107. The over/under for the game is set at 8 runs, reflecting expectations of a balanced contest.

Team Insights

Philadelphia boasts a strong 37-21 record at home and leads the NL East with a 71-53 overall mark. The Phillies have proven particularly dangerous when displaying power at the plate, posting a 35-8 record in games where they hit at least two home runs.

Seattle comes in at 68-57 overall and holds a 31-32 record on the road. The Mariners bring the American League’s sixth-ranked slugging percentage at .410, showcasing their depth and power throughout the lineup.

This marks the first meeting between the Mariners and Phillies this season.

Top Performers

For the Phillies, Trea Turner leads the team with a .291 batting average, adding 27 doubles, four triples, and 12 home runs. J.T. Realmuto has been steady recently, hitting 11-for-35 over his past 10 games.

The Mariners are powered by Josh Naylor, who sports a .286 average along with 22 doubles, one triple, and 15 home runs. Julio Rodriguez is in good form, batting 13-for-42 with three homers and seven RBIs over his last 10 games.

Recent Performance

Over their last 10 games, both teams are 6-4. The Phillies are batting .231 with a 3.66 ERA and have outscored opponents by four runs. The Mariners have posted a .237 batting average and a 3.88 ERA, outscoring the opposition by two runs in that span.

Injury Report

The Phillies are missing key pitcher Zack Wheeler, who remains on the 15-Day IL due to a blood clot.

The Mariners’ injury list includes Logan Evans (elbow), Trent Thornton (achilles), and Bryce Miller (elbow), all on the 15-Day IL. Gregory Santos (knee), Victor Robles (shoulder), and Ryan Bliss (biceps) are sidelined on the 60-Day IL.

Weather

Today at Citizens Bank Park, expect mostly sunny

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