Seattle Mariners
Honoring legends while chasing division glory at T-Mobile Park in 2026.
The 2027 season marks the 50th anniversary of the Seattle Mariners franchise, while the 2026 season is their 27th full campaign (28th overall) at T-Mobile Park. The team is striving to build on a historic run that saw them reach the 2025 American League Championship Series. This year features significant off-field tributes, including the unveiling of an Ichiro Suzuki statue in April. On the field, the Mariners opened with a loss to the Cleveland Guardians on March 26 but swept the Houston Astros in late April after a rough start, highlighted by J.P. Crawford tying a franchise record.
- Division
- American League West
- Season Start
- March 26, 2026 (vs Cleveland Guardians)
- Season End
- September 27, 2026 (vs Los Angeles Angels)
- Opening Day Result
- Loss
- Key Trade Partner
- None
- Retired Number
- 51 (Randy Johnson, retired 2001; Ichiro Suzuki, retired 2022)
Verified Timeline
Lore & Background
The 2026 roster is built on the foundation of their 2025 ALCS run, with key offseason moves reshaping the lineup. The front office executed a trade acquiring reliever José A. Ferrer from the Washington Nationals for catcher Harry Ford, but that deal fell through, and Harry Ford remains a Mariners prospect. The team also pursued utility player Brendan Donovan from the St. Louis Cardinals, but no trade materialized, and Donovan continues to play for the Cardinals. Additionally, the Mariners signed Andrew Knizner and Mitch Garver for backup catching duties, while Rob Refsnyder—who signed with the Boston Red Sox in 2022—was not a free agent acquisition for Seattle.
In Their Own Story
Spring training saw turbulence before Opening Day. Pitchers Bryce Miller and shortstop J.P. Crawford suffered injuries in late February, forcing them to start the season on the injured list alongside Miles Mastrobuoni. The World Baseball Classic added drama when outfielder Randy Arozarena attempted to shake hands with Cal Raleigh ahead of his first plate appearance against the U.S., only for Raleigh to decline. Naylor later joked about a similar attempt during Canada's game against the U.S. In April, the Mariners struggled early, losing five consecutive games after a split series against the New York Yankees and suffering a sweep by the Texas Rangers. However, they turned the tide by sweeping the Houston Astros in late April, where Josh Naylor hit his first two home runs of the season on April 13 to seal the victory.
Reader's Guide
Fans attending games in 2026 will notice new uniform patches celebrating the franchise's 50th season and special Seattle Steelheads-inspired uniforms for Sunday home games. The broadcast landscape has shifted, with Root Sports Northwest shuttered after 2025; production moved to MLB Local Media, featuring some Friday games on KING-TV and former player Ryon Healy as a color commentator. A statue commemorating the 116-win 2001 team, depicting Mike Cameron and Mark McLemore, is scheduled for unveiling in September alongside the 25th anniversary of the September 11 attacks. Longtime broadcaster Rick Rizzs announced his retirement after this season, while Angie Mentink recovered from a stroke suffered in February.
Did You Know?
- The Mariners retired Randy Johnson's number 51 in 2001, and Ichiro Suzuki's number 51 was retired in 2022.
- Utility player Brendan Donovan has never been traded to the Mariners and remains a current player for the St. Louis Cardinals as of 2025.
- During the World Baseball Classic, Randy Arozarena attempted to shake hands with Cal Raleigh before his first plate appearance, but Raleigh declined.
- The Mariners are unveiling a statue of Mike Cameron and Mark McLemore in September to honor the 2001 team that won 116 games.
Frequently Asked Questions
When did the Angels and Mariners rivalry start?
The competition officially began in 1977 when Seattle entered the American League West as an expansion franchise. This alignment created a long-standing divisional relationship that defines their schedule interactions to this day.
What makes this matchup important for fans?
It serves as a Pacific Coast battle where Southern California and Northwest cultures clash over division supremacy. Historically, these games have frequently determined playoff berths and AL West titles throughout the late 20th century.
Which stadiums host their rivalry games?
Matches are played at Angel Stadium in Anaheim versus Seattle's Kingdome or Safeco Field locations. These venue clashes emphasize the geographic distance between the two fanbases on the West Coast.
How does the divisional alignment affect play frequency?
Being in the same American League West division ensures they face each other multiple times every regular season. This high volume of games intensifies the competitive stakes compared to interleague or non-division opponents.
Is this feud still relevant in modern baseball?
Yes, it remains an active rivalry as both teams continue competing for American League West standings. Their head-to-head records often influence postseason eligibility and division championship races annually.