The Seattle Mariners are off to a strong start in 2025. At 14-11, they are tied for the top spot in the American League West ...

In addition to the starting duo, the M's also have another Julio Rodríguez in the organization "We are duplicating names left ...

Castillo battled through five laborious innings for the M's on Sunday against the Toronto Blue Jays, earning the win, but ...

T he Seattle Mariners and Miami Marlins will begin the first of a three-game series at 6:40 p.m. PT on Friday at T-Mobile ...

Seattle Mariners starting pitcher Luis Castillo surfaced in MLB rumors this winter when the clubs fielded inquiries on the ...

"I spent five years here, and being able to pitch here on that mound again was special," Castillo said Tuesday night.

The Seattle Mariners are in desperate need of an offensive jolt, especially with the injuries to Victor Robles and Ryan Bliss ...

According to a report from Bob Nightengale of USA Today, the M's were offered a young infielder for Castillo, but said no.

Seattle is looking to upgrade its lineup, but is not currently interested in trading from its vaunted rotation to do so. Read ...

Austin Hays drove in four runs in his season debut, and the Cincinnati Reds beat Luis Castillo and the Seattle Mariners 8-4.

What have we learned about the Mariners and AL West 25 games into the 2025 season? Here's a look at some intriguing ...

The Seattle Mariners had a successful road trip that set them up well for an upcoming five-game homestead. They went 6-3 on the road and improved to 14-11 on th ...