Seattle Mariners vs Philadelphia Phillies: August 24, 2026

Why This Game Matters

The game features the Philadelphia Phillies from the National League East and the Seattle Mariners from the American League West, making it an interleague regular-season matchup rather than a divisional meeting. Philadelphia enters the game with a 72-58 record in second place in the NL East, while Seattle is 62-68 and sits third in the AL West, making the matchup relevant to both teams' postseason positioning.

The Phillies enter the matchup on an eight-game winning streak, with their most recent victory coming in a 12-3 win over the St. Louis Cardinals. Bryce Harper drove in three runs, while Kyle Schwarber hit his 38th home run of the season. The Mariners enter the game with two straight wins, including a dramatic 5-4 victory over the Chicago Cubs on August 22, when Randy Arozarena hit a walk-off two-run home run.

Another major storyline is Zack Wheeler, who is expected to start for Philadelphia after going 10-4 with a 2.92 ERA and 144 strikeouts based on the available data. The matchup also comes shortly after Seattle promoted young pitcher Kade Anderson, who made his MLB debut against the Cubs on August 22. According to MLB Pipeline, Anderson was ranked as the No. 1 pitching prospect in the Mariners' system and No. 5 overall.

Game Timing & Location

Date: Monday, August 24, 2026.

First pitch: 6:40 PM PT.

Eastern Time: 9:40 PM ET.

Central Time: 8:40 PM CT.

Mountain Time: 7:40 PM MT.

Venue: T-Mobile Park.

City: Seattle, Washington.

Matchup: Philadelphia Phillies vs. Seattle Mariners.

League: Major League Baseball (MLB).

Game type: Regular-season game.

Series position: Game 1 of a three-game series between the teams, with two additional games scheduled for August 25 and August 26.

Head-to-Head Record

The Seattle Mariners and Philadelphia Phillies had not met during the 2026 season before this series, so the teams enter the August 24 game with a 0-0 head-to-head record for the current season.

The three scheduled meetings between the teams in 2026 will be played at T-Mobile Park in Seattle, beginning with the August 24 game, followed by games on August 25 and August 26.

Historical Matchups

The Mariners and Phillies have played 28 games against each other historically, with the teams tied at 14 wins apiece. In Seattle, the Mariners have won 7 games and lost 7, while their record away from home is also 7 wins and 7 losses.

In the last series between the teams before the 2026 season began, the Philadelphia Phillies swept a three-game series in August 2025, winning all three games by scores of 11-2, 6-4, and 12-7 from August 18 through August 20.

In the 2024 series played in Seattle, the Mariners won two games to one. Seattle won 10-2 on August 2, followed by a 6-5 win in 10 innings on August 3, before the Phillies won 6-0 on August 4.

The 10-2 result on August 2, 2024, represents the Mariners' largest win over the Phillies by run differential, while Seattle's longest winning streak in the historical matchup was five games, spanning June 3, 2003, through June 15, 2005.

The two teams have never met in the MLB postseason.

Standings Entering the Game

Philadelphia Phillies

Position: Second in the NL East.

Record: 72-58.

Games behind the division leader: 3.0.

Last 10 games: 8-2.

Current winning streak based on the available data: 8 games.

Wild Card position: +2.0 based on the available standings snapshot.

Seattle Mariners

Position: Third in the AL West.

Record: 62-68.

Games behind the division leader: 3.0.

Last 10 games: 6-4.

Current winning streak based on the available data: 2 games.

Wild Card position: 2.0 games based on the available standings snapshot.

Timing note: The Phillies' 72-58 record and the Mariners' 62-68 record represent the latest standings snapshot available before the August 23 games were completed, so they should not be treated as the final standings at the end of August 23.