Mariners Silence Guardians Bats in 5-1 Opening Win

George Kirby showed why Seattle’s rotation is built to compete, scattering just two hits over six innings while fanning six as the Mariners dispatched Cleveland 5-1 on Friday night at T-Mobile Park. It was the kind of dominant pitching performance that sets the tone for a franchise’s entire season, and Kirby delivered exactly when his team needed it most in this early-spring showdown.

Pitching Decisions

6.0IP2H1ER2BB6K
5.0IP2H3ER6BB7K

Star Performers

Chase DeLauter

Season AVG: .444
4AB1H1HR1RBI1R0BB
Cole Young

Season AVG: .167
3AB1H1HR3RBI1R0BB

The Guardians struck first, naturally. Chase DeLauter launched a solo shot in the top of the first inning off Gavin Williams, a towering fly ball to right center that gave Cleveland an early lead and all the momentum. For a brief moment, it looked like this might be a slugfest. It wasn’t. Not even close.

Chase DeLauter's solo home run (3)

Williams was sharp in his season debut, striking out seven batters across five innings, but he couldn’t survive the fourth. That’s when the Mariners’ lineup woke up and promptly put this game away. Cole Young, who had looked pedestrian at the plate in spring training, delivered a three-run bomb that scored both Randy Arozarena and Dominic Canzone. Suddenly, Cleveland’s early lead evaporated, and it was 4-1 Mariners with a middle reliever warming in the bullpen.

Cole Young's three-run homer (1)

Luke Raley piled on two more in the sixth with a two-run shot of his own, a line drive to right field that essentially turned this contest into a ceremonial victory lap for Seattle. Two homers, five runs, and the Guardians were left searching for answers at the plate. This is what happens when you can’t command your fastball early and you leave mistakes out over the middle of the plate against a lineup that’s desperate to prove something in March.

Luke Raley's two-run homer

Kirby Was Everything Cleveland Wasn’t

The contrast between the two starting pitchers couldn’t have been starker. Kirby was economical, efficient, and absolutely in control. Just two hits and two walks in six innings. That’s not luck, that’s elite stuff meeting elite command. Meanwhile, Williams walked six batters, which is the kind of free pass mentality that wins you nothing in baseball, especially against a team that can hit like Seattle’s can.

George Kirby fans six in win over Guardians

The Mariners’ defense was sharp too, with Cole Young making a diving stop that prevented extra bases and Julio Rodriguez tracking down a fly ball in center field that required a replay challenge to confirm. These are the little things that matter in tight games, and while this one wasn’t tight, it’s the kind of effort that builds winning cultures.

Cole Young homers in Mariners' 5-1 win

Opening Day Takeaways

The Mariners needed this win desperately, especially at home where championship teams are built. Kirby proved he’s a legitimate ace, not just a name on the back of a uniform. Cole Young’s three-run bomb was a statement moment for a young player fighting for position, and Raley showed that last year’s breakout wasn’t a fluke.

As for Cleveland, they’ll need to figure out their pitching staff’s command issues before the season spins out of control. One game doesn’t determine anything, but getting manhandled at home by a division rival is never the way you want to start your spring. The Guardians have the talent to bounce back, but performances like this? They leave marks.

Condensed Game: CLE@SEA – 3/27/26

Andrés Muñoz closed it out cleanly, and the Mariners got their first win of 2026. In baseball, that’s all that matters on Friday night.

Box Score

Cleveland Guardians Batting

Player AB R H RBI BB SO AVG
Steven Kwan CF 4 0 2 0 0 0 .222
Chase DeLauter RF 4 1 1 1 0 1 .444
José Ramírez 3B 4 0 0 0 0 0 .111
Kyle Manzardo DH 4 0 0 0 0 4 .125
Bo Naylor C 3 0 1 0 1 0 .125
Rhys Hoskins 1B 3 0 0 0 1 2 .500
CJ Kayfus LF 3 0 0 0 1 0 .000
Gabriel Arias SS 3 0 0 0 0 2 .143
Brayan Rocchio 2B 2 0 0 0 0 0 .400

Cleveland Guardians Pitching

Pitcher IP H R ER BB SO ERA
Gavin Williams (L) 5.0 2 3 3 6 7 5.40
Colin Holderman 1.0 1 2 2 1 1 18.00
Peyton Pallette 2.0 0 0 0 0 2 0.00

Seattle Mariners Batting

Player AB R H RBI BB SO AVG
Brendan Donovan 3B 2 0 0 0 2 1 .333
Cal Raleigh C 4 0 0 0 0 4 .000
Julio Rodríguez CF 3 0 0 0 1 2 .000
Josh Naylor 1B 4 0 0 0 0 0 .000
Randy Arozarena LF 1 2 0 0 3 0 .200
Luke Raley RF 4 1 1 2 0 1 .250
Dominic Canzone DH 2 1 0 0 1 0 .333
Cole Young 2B 3 1 1 3 0 1 .167
Leo Rivas SS 3 0 1 0 0 1 .200

Seattle Mariners Pitching

Pitcher IP H R ER BB SO ERA
George Kirby (W) 6.0 2 1 1 2 6 1.50
Eduard Bazardo 1.0 0 0 0 1 1 0.00
Matt Brash 1.0 1 0 0 0 0 0.00
Andrés Muñoz 1.0 1 0 0 0 2 0.00