The Seattle Mariners have carefully cultivated their 2026 schedule in anticipation of the World Cup games set to take place next door to T-Mobile Park at Lumen Field in Seattle.

One of the schedule tweaks the Mariners made was a doubleheader against the Boston Red Sox on June 20.

The World Cup game between the U.S. and Australia was scheduled for noon PT on June 19, which allowed the Mariners to move one game of the doubleheader back to that date.

The new schedule for Seattle's three-game series against Boston is: Game 1 at 7:10 p.m. PT on June 19, Game 2 at 7:`10 p.m. PT on June 20 and Game 3 at 1:10 p.m. PT on June 21, all at T-Mobile Park.

Tickets bought for Game 1 of the doubleheader will still be honored June 19 and fans with tickets to Game 2 of the doubleheader can request to exchange them at the following link.