Mariners Set 2026 Schedule: Opener vs. Guardians, Finale vs. Angels

The Mariners have released their 2026 schedule, opening at home against Cleveland on March 26 and wrapping up the regular season against the Angels on September 27.

Illustration for: Mariners Drop 2026 Schedule: March 26 Opener vs. Guardians, Angels Close It Out

The Mariners have their 2026 schedule in hand, and it starts and ends with a familiar rhythm: a home opener at T-Mobile Park and a late-September finish against an AL West rival. Seattle opens the season on Thursday, March 26 against the Cleveland Guardians, then plays the Ohio club three more times in a row before turning to the rest of the slate. The regular season wraps on Thursday, September 27 against the Los Angeles Angels, capping a four-game set against Los Angeles.

Team officials rolled out the schedule update on social media on Tuesday, August 26, teasing what fans can expect to see at T-Mobile Park next year. The Mariners' Instagram post pointed to Opening Day, a run of interleague matchups, and a home doubleheader as some of the season's notable features.

Full details on every date, opponent and start time for 2026 are posted on the Mariners' official schedule page. Based on what has been shared so far, here is what's locked in:

  • March 26: Cleveland Guardians, T-Mobile Park (Opening Day, first of four straight games)
  • September 27: Los Angeles Angels (regular season finale, final game of a four-day series)

Opening the year against Cleveland with four games in a row gives Seattle an early stretch to find its footing before the schedule turns over to the rest of the American League and the interleague dates the team is already promoting. Closing with a run against the Angels keeps the finish inside the division, which tends to matter more in years when the standings are still being sorted out in late September.

This schedule reveal comes on the heels of a 2025 season Mariners fans won't forget anytime soon. Cal Raleigh turned in a record-breaking year behind the plate, and Ichiro Suzuki was inducted into the Baseball Hall of Fame. That's a tough act to follow, but a schedule built around a home opener, a doubleheader and a full slate of interleague games gives the front office plenty to sell to a fan base that just watched a franchise legend get his bronze plaque.

Before any of that 2026 baseball gets played, Seattle still had business left on the 2025 calendar, including a three-game series at home against the Los Angeles Dodgers from September 26 through 28 to close out that season. Tickets for the new schedule are already available through the team's website, and given how quickly marquee dates tend to sell out at T-Mobile Park, fans with their eye on Opening Day or the Dodgers-style rivalry games would be smart not to wait.

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