For the last two decades, the Houston Astros have ruled the Major League Baseball American League West, but no longer. In late September 2025, the Seattle Mariners finally seized the division. They did so emphatically, sweeping the Astros — their longtime rivals — in Houston before clinching the crown back home in front of 42,883 roaring fans at T-Mobile Park.
The Mariners’ 9-2 victory over Colorado on Wednesday, Sept. 24 sealed their first division title since 2001’s record-setting campaign, marking a new era in the franchise’s history. The moment belonged to Cal Raleigh, whose bat has carried Seattle all year. The catcher crushed a towering 438-foot drive into the third deck in the first inning. It was his 59th home run of the season, breaking Ken Griffey Jr.’s franchise record for single-season home runs. Raleigh wasn’t done, adding another in the eighth to make it an even 60, becoming the seventh player to ever do so.
“It just seems so fitting,” Mariners manager Dan Wilson said. “This has been his year.”
The timing couldn’t have been sweeter. Just days earlier, Seattle marched into Minute Maid Park and dealt Houston a stunning sweep, never once trailing across three games. The series felt like a passing of the torch. After eight division titles in the last nine seasons, the Astros were dethroned on their home turf.
“We knew that was what had to happen,” Raleigh said. “The Astros owned this division for a long time, and to go out there and do it at their place, it meant a lot.”
Seattle’s sweep included defining moments, none bigger than Victor Robles’ spectacular grab in Game 2. With two outs in the ninth and the Astros’ tying run barreling toward the plate off a bloop, Robles sprinted into the gap and laid out for a game-saving catch that preserved a one-run victory.
“That’s one of the best catches I’ve ever seen,” center fielder Julio Rodríguez said. “He saved the game, and in a series like that, those are the plays that change everything.”
The Mariners won 16 of their last 17 games going into the Los Angeles Dodgers series, turning a shaky start to September into a dominant stretch. Their surge not only secured the AL West but also locked up a first-round bye. As of Sept. 25, they trailed the Toronto Blue Jays by just one game for the AL’s best record.
For Mariners majority owner John Stanton, Whitman class of 1977, the run was unforgettable.
“Last week was really magical,” Stanton said. “We clinched the playoffs on Tuesday, the division on Wednesday, and the bye on Thursday. Every night was another celebration.”
Home field has been critical to that success.
“Our home record was one of the best in baseball this year,” Stanton said. “Having playoff games at T-Mobile Park is huge for this community. In 2022 we only hosted one playoff game. Now we’re guaranteed more, and maybe the ALCS too.”
The franchise has taken heat in the past for perceived inaction, especially after narrow playoff misses. Stanton pushed back on that notion.
“We’re one of six teams with a winning record each of the last five years. We’ve made multi year commitments to Julio, Cal, J.P. Crawford, Andres Muñoz, Luis Castillo. We’ve committed over a billion dollars in future payroll. Our strategy may look different than the Yankees or Dodgers, but right now we’re the ones with a bye,” said Stanton.
Even with a division crown, the Mariners insist this is just the beginning. Stanton admitted a World Series trip is the ultimate measure.
“I’m extremely excited about being in the playoffs,” Stanton said. “But I’m certainly optimistic and hopeful to be in the World Series — and to win it.”
Preparation for that run has already begun. With five days off before the American League Division Series, the Mariners staged scrimmages to stay sharp. One included a fun twist.
“Ichiro Suzuki is playing right field in the scrimmage,” Stanton said. “We needed an extra right fielder, and he was available. But really, what we have to do is have the team ready on Saturday.”
The break also allows pitchers to reset.
“By this point, everyone’s banged up,” Stanton said. “We think the time off is positive. It lets us line up our best pitchers for the Division Series.”
Through it all, Raleigh remains the face of the season. Stanton praised his MVP-level performance but emphasized Raleigh’s selflessness.
“He puts the team first. The most important thing to him is winning the World Series, not personal awards,” said Stanton. “I think that’s genuine — and we’re thrilled he’s signed with us for another seven years.”
For players and fans alike, this run has been years in the making. After ending baseball’s longest postseason drought in 2022, Seattle missed the playoffs by a game in back-to-back seasons. Those frustrations fueled this year’s push.
“This is what you work for,” Raleigh said. “These are the things you think about in the offseason, knowing you missed it by a game. To be here now, it’s crazy, it’s fun, and I’m proud of the guys.”
Seattle’s mix of power and balance has fueled its rise: Raleigh’s record-setting blasts, Rodríguez’s star power, a deep pitching staff and clutch plays from role players like Robles. Together, they’ve turned T-Mobile Park into one of baseball’s toughest venues. Inside the clubhouse, the mood is confident.
“A new banner will hang here, but that’s not where we’re stopping,” Rodríguez said. “The World Series is the goal.”
Seattle has waited 24 years for a division title and a franchise history for a World Series trip. Now, they not only have momentum but also the swagger of a team that believes it can finish the story they’ve started.
