Compiled by Tim Clinton
Seattle reeled in all-star second baseman and outfielder Brandan Donovan in a three-team trade earlier this week.
Donovan comes to the Mariners from the St. Louis Cardinals and giving up top prospects in return in right-handed pitcher Jurrangelo Clintje, outfielder Tai Peete and outfielder Colton Ledbetter along with a Competitive Balance Round B draft pick.
The Tampa Bay Rays traded a Competitive Balance Round B draft pick to the Cardinals as well and gained Mariners third baseman Ben Williamson to complete the trade.
The Tacoma Defiance minor league soccer team announced the hiring of Paulo Nagamura as its new head coach with former Seattle Sounders FC midfielder Joao Paulo coming in as an assistant coach.
Paulo spent six years with the Sounders while Nagamura comes in with 12 years of Major League Soccer playing experience.
Seattle hopes to follow up on its fantastic 2025 season in which it won the American League West title ahead of the Houston Astros and made it as far as the seventh game of the American League Championship Series with more big things to come in 2026.
The effort all starts with the regular season opener scheduled for 7:10 p.m. Thursday, March 26 against the Cleveland Guardians on the Mariners' home diamond at T-Mobile Park.
All of Seattle's planned home game times have been announced along with the times for all but three of its road stops.
What follows is the Mariners' regular season schedule with all times listed being Pacific Daylight Time.
Seattle Mariners
2026 regular season schedule
Thursday, March 26
Cleveland at Seattle, 7:10 p.m.
Friday, March 27
Cleveland at Seattle, 6:40 p.m.
Saturday, March 28
Cleveland at Seattle, 6:40 p.m.
Sunday, March 29
Cleveland at Seattle, 1:10 p.m.
Monday, March 30
NY Yankees at Seattle, 6:40 p.m.
Tuesday, March 31
NY Yankees at Seattle, 6:40 p.m.
Wednesday, April 1
NY Yankees at Seattle, 1:10 p.m
Friday, April 3
Seattle at LA Angels, 6:38 p.m.
Saturday, April 4
Seattle at LA Angels, 6:38 p.m.
Sunday, April 5
Seattle at LA Angels, 1:07 p.m.
Monday, April 6
Seattle at Texas, 5:05 p.m.
Tuesday, April 7
Seattle at Texas, 5:05 p.m.
Wednesday, April 8
Seattle at Texas, 11:35 a.m.
Friday, April 10
Houston at Seattle, 6:40 p.m.
Saturday, April 11
Houston at Seattle, 6:40 p.m.
Sunday, April 12
Houston at Seattle, 1:10 p.m.
Monday, April 13
Houston at Seattle, 1:10 p.m.
Tuesday, April 14
Seattle at San Diego, 6:40 p.m.
Wednesday, April 15
Seattle at San Diego, 6:40 p.m.
Thursday, April 16
Seattle at San Diego, 5:40 p.m.
Friday, April 17
Texas at Seattle, 6:40 p.m.
Saturday, April 18
Texas at Seattle, 4:15 p.m.
Sunday, April 19
Texas at Seattle, 1:10 p.m.
Monday, April 20
Athletics at Seattle, 6:40 p.m.
Tuesday, April 21
Athletics at Seattle, 6:40 p.m.
Wednesday, April 22
Athletics at Seattle, 1:10 p.m.
Friday, April 24
Seattle at St. Louis, 5:15 p.m.
Saturday, April 25
Seattle at St. Louis, 11:15 a.m.
Sunday, April 26
Seattle at St. Louis, 11:15 a.m.
Monday, April 27
Seattle at Minnesota, 4:40 p.m.
Tuesday, April 28
Seattle at Minnesota, 4:40 p.m.
Wednesday, April 29
Seattle at Minnesota, 10:40 a.m.
Friday, May 1
Kansas City at Seattle, 6:40 p.m.
Saturday, May 2
Kansas City at Seattle, 6:40 p.m.
Sunday, May 3
Kansas City at Seattle, 1:10 p.m.
Monday, May 4
Atlanta at Seattle, 6:40 p.m.
Tuesday, May 5
Atlanta at Seattle, 6:40 p.m.
Wednesday, May 6
Atlanta at Seattle, 1:10 p.m.
Friday, May 8
Seattle at Chicago White Sox, 4:40 p.m.
Saturday, May 9
Seattle at Chicago White Sox, 4:10 p.m.
Sunday, May 10
Seattle at Chicago White Sox, 11:10 a.m.
Monday, May 11
Seattle at Houston, TBA.
Tuesday, May 12
Seattle at Houston, TBA.
Wednesday, May 13
Seattle at Houston, TBA.
Thursday, May 14
Seattle at Houston, TBA.
Friday, May 15
San Diego at Seattle, 6:40 p.m.
Saturday, May 16
San Diego at Seattle, 4:15 p.m.
Sunday, May 17
San Diego at Seattle, 1:10 p.m.
Monday, May 18
Chicago White Sox at Seattle, 6:40 p.m.
Tuesday, May 19
Chicago White Sox at Seattle, 6:40 p.m.
Wednesday, May 20
Chicago White Sox at Seattle, 1:10 p.m.
Friday, May 22
Seattle at Kansas City, 4:40 p.m.
Saturday, May 23
Seattle at Kansas City, 1:10 p.m.
Sunday, May 24
Seattle at Kansas City, 11:10 a.m.
Monday, May 25
Seattle at Athletics, 6:40 p.m.
Tuesday, May 26
Seattle at Athletics, 6:40 p.m.
Wednesday, May 27
Seattle at Athletics, 12:05 p.m.
Friday, May 29
Arizona at Seattle, 7:10 p.m.
Saturday, May 30
Arizona at Seattle, 7:10 p.m.
Sunday, May 31
Arizona at Seattle, 1:10 p.m.
Monday, June 1
NY Mets at Seattle, 6:40 p.m.
Tuesday, June 2
NY Mets at Seattle, 6:40 p.m.
Wednesday, June 3
NY Mets at Seattle, 12:40 p.m.
Friday, June 5
Seattle at Detroit, 3:40 p.m.
Saturday, June 6
Seattle at Detroit, 10:10 a.m.
Sunday, June 7
Seattle at Detroit, 10:40 a.m.
Monday, June 8
Seattle at Baltimore, 3:35 p.m.
Tuesday, June 9
Seattle at Baltimore, 3:35 p.m.
Wednesday, June 10
Seattle at Baltimore, 3:35 p.m.
Thursday, June 11
Seattle at Baltimore 3:35 p.m.
Friday, June 12
Seattle at Washington DC, 3:45 p.m.
Saturday, June 13
Seattle at Washington DC, 1:05 p.m.
Sunday, June 14
Seattle at Washington DC, 10:35 a.m.
Tuesday, June 16
Baltimore at Seattle, 6:40 p.m.
Wednesday, June 17
Baltimore at Seattle, 6:40 p.m.
Thursday, June 18
Baltimore at Seattle, 1:10 p.m.
Friday, June 19
Boston at Seattle, 7:10 p.m.
Saturday, June 20
Boston at Seattle, 7:10 p.m.
Sunday, June 21
Boston at Seattle, 1:10 p.m.
Tuesday, June 23
Seattle at Pittsburgh, 3:40 p.m.
Wednesday, June 24
Seattle at Pittsburgh, 3:40 p.m.
Thursday, June 25
Seattle at Pittsburgh, 9:35 a.m.
Friday, June 26
Seattle at Cleveland, TBA.
Saturday, June 27
Seattle at Cleveland, TBA.
Sunday, June 28
Seattle at Cleveland, TBA.
Monday, June 29
LA Angels at Seattle, 6:40 p.m.
Tuesday, June 30
LA Angels at Seattle, 6:40 p.m.
Thursday, July 2
LA Angels at Seattle, 6:40 p.m.
Friday, July 3
Toronto at Seattle, 7:10 p.m.
Saturday, July 4
Toronto at Seattle, 1:10 p.m.
Sunday, July 5
Toronto at Seattle, 1:10 p.m.
Tuesday, July 7
Seattle at Miami, 3:40 p.m.
Wednesday, July 8
Seattle at Miami, 3:40 p.m.
Thursday, July 9
Seattle at Miami, 3:40 p.m.
Friday, July 10
Seattle at Tampa Bay, 4:10 p.m.
Saturday, July 11
Seattle at Tampa Bay, 1:10 p.m.
Sunday, July 12
Seattle at Tampa Bay, 10:40 a.m.
Friday, July 17
San Francisco at Seattle, 7:10 p.m.
Saturday, July 18
San Francisco at Seattle, 4:15 p.m.
Sunday, July 19
San Francisco at Seattle, 1:10 p.m.
Monday, July 20
Cincinnati at Seattle, 6:40 p.m.
Tuesday, July 21
Cincinnati at Seattle, 6:40 p.m.
Wednesday, July 22
Cincinnati at Seattle, 12:40 p.m.
Friday, July 24
Seattle at Texas, 5:05 p.m.
Saturday, July 25
Seattle at Texas, 4:15 p.m.
Sunday, July 26
Seattle at Texas, 11:35 a.m.
Monday, July 27
Seattle at Texas, 11:35 a.m.
Tuesday, July 28
Seattle at LA Dodgers, 7:10 p.m.
Wednesday, July 29
Seattle at LA Dodgers, 7:10 p.m.
Thursday, July 30
Seattle at LA Dodgers, 7:10 p.m.
Friday, July 31
Minnesota at Seattle, 7:10 p.m.
Saturday, Aug. 1
Minnesota at Seattle, 1:10 p.m.
Sunday, Aug. 2
Minnesota at Seattle, 1:10 p.m.
Tuesday, Aug. 4
Detroit at Seattle, 6:40 p.m.
Wednesday, Aug. 5
Detroit at Seattle, 6:40 p.m.
Thursday, Aug. 6
Detroit at Seattle, 1:10 p.m.
Friday, Aug. 7
Tampa Bay at Seattle, 7:10 p.m.
Saturday, Aug. 8
Tampa Bay at Seattle, 6:50 p.m.
Sunday, Aug. 9
Tampa Bay at Seattle, 1:10 p.m.
Tuesday, Aug. 11
Seattle at NY Yankees, 4:05 p.m.
Wednesday, Aug. 12
Seattle at NY Yankees, 4:05 p.m.
Thursday, Aug. 13
Seattle at NY Yankees, 10:35 a.m.
Friday, Aug. 14
Seattle at Houston, TBA.
Saturday, Aug. 15
Seattle at Houston, TBA.
Sunday, Aug. 16
Seattle at Houston, TBA.
Tuesday, Aug. 18
Seattle at Milwaukee, 4:40 p.m.
Wednesday, Aug. 19
Seattle at Milwaukee, 4:40 p.m.
Thursday, Aug. 20
Seattle at Milwaukee, 11:10 a.m.
Friday, Aug. 21
Chicago Cubs at Seattle, 7:10 p.m.
Saturday, Aug. 22
Chicago Cubs at Seattle, 6:40 p.m.
Sunday, Aug. 23
Chicago Cubs at Seattle, 1:10 p.m.
Monday, Aug. 24
Philadelphia at Seattle, 6:40 p.m.
Tuesday, Aug. 25
Philadelphia at Seattle, 6:40 p.m.
Wednesday, Aug. 26
Philadelphia at Seattle, 1:10 p.m.
Friday, Aug. 28
Seattle at Toronto, 4:07 p.m.
Saturday, Aug. 29
Seattle at Toronto, 12:07 p.m.
Sunday, Aug. 30
Seattle at Toronto, 10:37 a.m.
Monday, Aug. 31
Seattle at Boston, 3:45 p.m.
Tuesday, Sept. 1
Seattle at Boston, 3:45 p.m.
Wednesday, Sept. 2
Seattle at Boston, 1:10 p.m.
Thursday, Sept. 3
Athletics at Seattle, 6:40 p.m.
Friday, Sept. 4
Athletics at Seattle, 7:10 p.m.
Saturday, Sept. 5
Athletics at Seattle, 6:40 p.m.
Sunday, Sept. 6
Athletics at Seattle, 1:10 p.m.
Tuesday, Sept. 8
Texas at Seattle, 6:40 p.m.
Wednesday, Sept. 9
Texas at Seattle, 6:40 p.m.
Thursday, Sept. 10
Texas at Seattle, 1:10 p.m.
Friday, Sept. 11
Seattle at Athletics, 6:40 p.m.
Saturday, Sept. 12
Seattle at Athletics, 6:40 p.m.
Sunday, Sept. 13
Seattle at Athletics, 1:05 p.m.
Monday, Sept. 14
Seattle at LA Angels, 6:38 p.m.
Tuesday, Sept. 15
Seattle at LA Angels, 6:38 p.m.
Wednesday, Sept. 16
Seattle at LA Angels, 6:38 p.m.
Friday, Sept. 18
Seattle at Colorado, 5:10 p.m.
Saturday, Sept. 19
Seattle at Colorado, 5:10 p.m.
Sunday, Sept. 20
Seattle at Colorado, 12:10 p.m.
Tuesday, Sept. 22
Houston at Seattle, 6:40 p.m.
Wednesday, Sept. 23
Houston at Seattle, 6:40 p.m.
Thursday, Sept. 24
LA Angels at Seattle, 6:40 p.m.
Friday, Sept. 25
LA Angels at Seattle, 7:10 p.m.
Saturday, Sept. 26
LA Angels at Seattle, 6:40 p.m.
Sunday, Sept. 27
LA Angels at Seattle, 12:10 p.m.
The Seattle Mariners are set to begin their spring training Wgame schedule at 12:10 p.m. Pacific Standard Time on Friday, Feb. 20 against the San Diego Padres on both teams' spring home field in Peoria, Ariz.
The San Francisco Giants visit the next day at the same time, and the Mariners are off and running almost every day from there.
Action continues down in the Valley of the Sun through Monday, March 23 when Seattle is the visitor against the Padres in Peoria, at 12:10 p.m. Pacific Daylight Time.
What follows is Seattle's spring schedule, with all times listed being Pacific. That means the local Mountain time in Arizona will be one hour later until Sunday, March 8 when the time changes here but not there to make them the same.
The Mariners offer spring training and regular season tickets at this point, as well as vacation packages. See their website or call them for details.
Seattle Mariners
Spring training 2026 schedule
Friday, Feb. 20
San Diego at Seattle, 12:10 p.m.
Saturday, Feb. 21
San Francisco at Seattle, 12:10 p.m.
Sunday, Feb. 22
Seattle at Cincinnati, 12:05 p.m.
Monday, Feb. 23
Seattle at LA Dodgers, 12:05 p.m.
Tuesday, Feb. 24
Chicago White Sox at Seattle, 12:10 p.m.
Wednesday, Feb. 25
Seattle at Kansas City, 12:05 p.m.
Thursday, Feb. 26
Cleveland at Seattle, 12:10 p.m.
Friday, Feb. 27
Arizona at Seattle, 5:10 p.m.
Saturday, Feb. 28
Seattle at San Diego, 12:10 p.m.
Sunday, March 1
Texas at Seattle, 12:10 p.m.
Tuesday, March 3
LA Angels at Seattle, 12:10 p.m.
Wednesday, March 4
Seattle at San Francisco, 6:05 p.m.
Thursday, March 5
San Diego at Seattle, 12:10 p.m.
Friday, March 6
Seattle at Texas, 12:05 p.m.
Saturday, March 7
Chicago White Sox at Seattle, 12:10 p.m.
Sunday, March 8
Seattle at Milwaukee, 1:10 p.m.
Monday, March 9
Seattle at Arizona, 1:10 p.m.
Tuesday, March 10
Kansas City at Seattle, 1:10 p.m.
Wednesday, March 11
Colorado at Seattle, 1:10 p.m.
Thursday, March 12
Seattle at Chicago Cubs, 1:05 p.m.
Friday, March 13
LA Dodgers at Seattle, 6:10 p.m.
Saturday, March 14
Seattle at LA Angels, 1:10 p.m.
Sunday, March 15
Cincinnati at Seattle, 1:10 p.m.
Tuesday, March 17
San Diego at Seattle (SS), 1:10 p.m.
Seattle at Colorado (SS), 1:10 p.m.
Wednesday, March 18
Milwaukee at Seattle, 1:10 p.m.
Thursday, March 19
Seattle at Athletics, 6:10 p.m.
Friday, March 20
Seattle at Cleveland, 1:05 p.m.
Spring Breakout, Seattle at Milwaukee, 2:10 p.m.
Saturday, March 21
Chicago Cubs at Seattle, 1:10 p.m.
Sunday, March 22
Seattle at Chicago White Sox, 12:05 p.m.
Monday, March 23
Seattle at San Diego, 12:10 p.m.