Opening day for the Mariners is Thursday as they kick off the season with a home series against the Sacramento Athletics. Here's what to know.

All-Star closer made the 200th appearance on his career on Thursday and joined a shortlist of elite names in the process.

Fans frustrated M’s didn’t spend to improve an offense that’s been wasting World Series-level pitching. But they keep coming back.

Haniger debuted for the Mariners in April 2017, traded from Arizona to Seattle alongside Jean Segura in exchange for INF Ketel Marte and RHP Taijuan Walker the previous winter. By 2018, he was an AL All-Star, finishing 11th in MVP voting with 93 RBI and an .859 OPS.

It’s been nearly six months since the Seattle Mariners faced off in a series against the Athletics, but the teams will meet again at 7:10 p.m. today.

The Seattle Mariners knocked off the Athletics 4-2 in their 2025 season opener at T-Mobile Park. We break down some takeaways.

The largest free agent signing, really, was Jorge Polanco. A guy the Mariners let walk from the roster in November, only to bring him back at a reduced salary in hopes that it was injuries that truly reduced his impact on the lineup in 2024.

All main T-Mobile Park gates open 90 minutes before the first pitch. The T-Mobile 'Pen gate, located next to the Mariners' bullpen in centerfield, opens two hours before the first pitch. Fans can access the ‘Pen area of the ballpark until all other main gates open. Here is the summary of the policy from the Mariners' website.