Seattle Mariners vs. Cleveland Guardians: Game Preview, Odds, Pitching Matchup for August 31, 2025

Sunday, August 31st, 2025

Seattle Mariners at Cleveland Guardians: Game Preview and Key Insights

The Seattle Mariners (72-64, second in the AL West) travel to Progressive Field to face the Cleveland Guardians (68-66, third in the AL Central) on Sunday, August 31, 2025, at 12:40 PM local time. Both teams look to capitalize on a crucial late-season matchup as the postseason race heats up.

Pitching Matchup

The Mariners will start Bryce Miller, who enters the game with a 3-5 record, a 5.98 ERA, a 1.50 WHIP, and 47 strikeouts this season. The Guardians counter with Tanner Bibee, holding a 9-10 record, 4.73 ERA, 1.31 WHIP, and 132 strikeouts. Both pitchers are aiming to deliver quality outings to boost their teams.

Game Odds and Series Information

The Mariners are slightly favored with odds at -118, while the Guardians stand at -101. The over/under for runs is set at 8.5. This is the sixth meeting between these two squads in 2025, with Seattle leading the season series 3-2.

Guardians: Home Field Advantage

The Cleveland Guardians have posted a 68-66 overall record and are 35-32 at home. They are especially dangerous when hitting the long ball and are 24-13 in games with two or more home runs. Cleveland comes into the game riding a four-game home winning streak.

Mariners: Power in the Lineup

Seattle brings power on the road, ranking third in MLB with 194 home runs this season. However, their road record sits at 31-37, and they’ll be looking to strengthen their postseason chances with a crucial win in Cleveland.

Top Performers to Watch

Cleveland Guardians

Jose Ramirez leads the Guardians with 26 home runs and boasts a .504 slugging percentage. Over the past 10 games, Kyle Manzardo has provided a spark, going 8-for-36 with two homers and five RBI.

Seattle Mariners

Josh Naylor has contributed significantly with 24 doubles, one triple, 16 home runs, and 73 RBI. Jorge Polanco is red-hot, hitting 13-for-34 with three doubles and four home runs in his last 10 games.

Recent Form

Both teams have identical 4-6 records in their last 10 games. Cleveland’s offense has struggled recently, hitting just .179 with a 4.65 team ERA, and has been outscored by 21 runs. The Mariners, hitting .213 with a 4.75 ERA, have been outscored by three runs over the same span.

Injury Updates

Cleveland Guardians

Injuries continue to impact the Guardians: Gabriel Arias (hand, day-to-day), Lane Thomas (foot, 10-Day IL), Will Brennan (forearm, 60-Day IL), Andrew Walters (lat, 60-Day IL), Ben Lively (forearm, 60-Day IL), John Means (elbow, 60-Day IL), and Sam Hentges (shoulder, 60-Day IL).

Seattle Mariners

The Mariners are also dealing with absences: Trent Thornton (achilles, 60-Day IL), Logan Evans (elbow, 15-Day IL), Gregory Santos (knee, 60-Day IL), and Ryan Bliss (biceps, 60-Day IL).

Weather

Today at Progressive Field, expect warm conditions with a high near 84°F under mostly sunny skies. There is little chance of precipitation, making for ideal baseball weather. Winds will be light out of the southwest at 6-9 mph, unlikely to significantly impact play.

In summary

The Seattle Mariners and Cleveland Guardians will clash in a high-stakes American League matchup at Progressive Field. With Bryce Miller and Tanner Bibee on the mound, power hitters ready to make an impact, and playoff implications on the line, this game promises to be must-watch baseball. Both teams are evenly matched heading into this contest, and excellent weather conditions only add to the anticipation for fans and players alike.

Related Links

• Seattle Mariners News & Updates
• Seattle Mariners Schedule & Scores
• Cleveland Guardians News & Updates
• Cleveland Guardians Schedule & Scores
• MLB News