AL West matches up with NL West in Interleague Play
The Seattle Mariners open the 2018 season with a matchup against the Cleveland Indians at Safeco Field on Thursday, March 29, according to the tentative regular season schedule released today. Start time is tentatively set for 7:10 p.m.
As announced by Major League Baseball earlier today, all MLB teams will open on the same day. The last time that happened was April 10, 1968.
After an off-day on Friday, the Mariners season-opening series with the Indians resumes on Saturday, March 31, and wraps up on Sunday, April 1.