2026 Seattle Mariners season
| 2026 Seattle Mariners | |
|---|---|
| League | American League |
| Division | West |
| Ballpark | T-Mobile Park |
| City | Seattle, Washington |
| Owners | Baseball Club of Seattle, LP, represented by CEO John Stanton |
| President of baseball operations | Jerry Dipoto |
| General manager | Justin Hollander |
| Manager | Dan Wilson |
| Television | MLB Local Media (Aaron Goldsmith, Jay Buhner, Dave Valle, Angie Mentink, Ryan Rowland-Smith, Bill Krueger, Jen Mueller, Brad Adam) |
| Radio | ESPN-710 Seattle Mariners Radio Network (Rick Rizzs, Gary Hill Jr., Mark McLemore, Ken Phelps, Angie Mentink, Ryan Rowland-Smith, Shannon Drayer) |
The 2026 Seattle Mariners season will be the 50th season in franchise history and their 27th full season (28th overall) at T-Mobile Park, their home ballpark in Seattle, Washington. The Mariners will open and close their season in Seattle, with opening day season on March 26, 2026 against the Cleveland Guardians and the regular season finale on September 27 against the Los Angeles Angels.
The Mariners plan to retire Randy Johnson's uniform number 51 on May 2. The number was retired in the 2025 season for Ichiro Suzuki.[1][2] The Mariners will wear a uniform patch commemorating their 50th season.[3]
Offseason
Coming off an AL West division title and American League Championship Series appearance, the Mariners acted early in the offseason, re-signing first baseman Josh Naylor, who had been a 2025 mid-season pickup, to a five-year contract in mid-November 2025.[4]
On December 5, the Mariners announced their coaching staff for the upcoming season. Two former coaches left for bench coach jobs, with third base coach Kristopher Negrón joining the Pittsburgh Pirates and bullpen coach Tony Arnerich going to the Cleveland Guardians. Carlos Cardoza, previously the Frisco RoughRiders manager, was named the third base coach, and former Mariner catcher Austin Nola began his coaching career as the bullpen coach. Jake McKinley, formerly the Nevada Wolf Pack coach, was named the field coordinator, replacing Louis Boyd, who took another role with the Mariners. Seattle retained all other coaches from 2025.[5][6]
Transactions
- November 2, 2025: Josh Naylor, Eugenio Suárez, Caleb Ferguson, and Luke Jackson elected free agency.[7][8]
- November 3: The Mariners declined Mitch Garver's $12 million mutual option, paying him a $1 million buyout and making him a free agent.[9]
- November 5: Pitcher Cole Wilcox traded by the Tampa Bay Rays to Seattle for cash.[10]
- November 6: Jorge Polanco declined a $6 million option, receiving a $750,000 buyout, and elected free agency.[11] The Mariners claimed pitcher Ryan Loutos off waivers from the Washington Nationals.[12]
- November 16: Minor league pitcher Robinson Ortiz traded by the Los Angeles Dodgers to Seattle for minor league pitcher Tyler Gough.[8]
- November 17: Naylor signed a five-year, $92.5 million contract with the Mariners.[4]
- November 18: The Boston Red Sox traded minor league pitcher Alex Hoppe to the Mariners for minor league catcher Luke Heyman. The Mariners designated pitcher Tayler Saucedo for assignment.[13] Saucedo elected free agency two days later.[8]
- November 21: The Mariners non-tendered Trent Thornton and Gregory Santos, making them free agents.[14]
Regular season
Game log
| Legend | |
|---|---|
| Mariners win | |
| Mariners loss | |
| Postponement | |
| Bold | Mariners team member |
| 2026 Game Log: 0–0 (Home: 0–0; Road: 0–0) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
March/April: 0–0 (Home: 0–0; Road: 0–0)
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
May: 0–0 (Home: 0–0; Road: 0–0)
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
June: 0–0 (Home: 0–0; Road: 0–0)
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
July: 0–0 (Home: 0–0; Road: 0–0)
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
August: 0–0 (Home: 0–0; Road: 0–0)
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
September: 0–0 (Home: 0–0; Road: 0–0)
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Source[15]
Roster
| 40-man roster | Non-roster invitees | Coaches / other |
|---|---|---|
|
Pitchers
Catchers
Infielders
Outfielders
|
Pitchers
|
Manager Coaches
|
Farm system
The Mariners will have a new Single-A affiliate in 2026, as Diamond Baseball Holdings moved the Modesto Nuts after the 2025 season to San Bernardino to become the Inland Empire 66ers.[18][19]
References
- ^ "Mariners to Retire Randy Johnson's #51 During 2026 Season" (Press release). Seattle Mariners. Retrieved November 19, 2025 – via MLB.com.
- ^ "Mariners to Retire Randy Johnson's #51 on May 2" (Press release). Seattle Mariners. Retrieved November 23, 2025 – via MLB.com.
- ^ Van Til, Cameron (November 19, 2025). "Seattle Mariners unveil jersey patch for 50th season". Seattle Sports. Retrieved November 23, 2025.
- ^ a b Perry, Dayn (November 18, 2025). "Josh Naylor re-signing with Mariners: First baseman back to Seattle on five-year deal". CBS Sports. Retrieved November 18, 2025.
- ^ "Mariners Announce 2026 Major League Coaching Staff" (Press release). Seattle Mariners. December 5, 2025. Retrieved December 6, 2025 – via MLB.com.
- ^ Van Til, Cameron (December 5, 2025). "Seattle Mariners announce 3 new hires to 2026 coaching staff". Seattle Sports. Retrieved December 6, 2025.
- ^ Heyen, Billy (November 2, 2025). "Mariners have 4 players, including 2 stars, officially entering free agency". Sporting News. Retrieved November 18, 2025.
- ^ a b c "Transactions - November 2025". MLB.com. Retrieved November 18, 2025.
- ^ Deeds, Nick (November 3, 2025). "Mariners Decline Mutual Option On Mitch Garver". MLB Trade Rumors. Retrieved November 18, 2025.
- ^ Heyen, Billy (November 5, 2025). "Mariners make trade with Rays for 6-foot-5 righty who throws 97 MPH". Sporting News. Retrieved November 18, 2025.
- ^ "M's Polanco a free agent after declining option". ESPN. Associated Press. November 6, 2025. Retrieved November 18, 2025.
- ^ Stecker, Brent (November 6, 2025). "Seattle Mariners add a reliever with interesting backstory". Seattle Sports. Retrieved November 18, 2025.
- ^ Kramer, Daniel (November 18, 2025). "Mariners add bullpen depth with trade for Hoppe". MLB.com. Retrieved November 19, 2025.
- ^ Jude, Adam (November 21, 2025). "Mariners non-tender three relievers, opening up roster space". The Seattle Times. Retrieved November 23, 2025.
- ^ Pfeffinger, Ramsey (August 26, 2025). "Seattle Mariners release 2026 schedule". Fox 13 Seattle.
- ^ "Seattle Mariners Minor League Affiliates". Baseball Reference. Retrieved November 18, 2025.
- ^ "MiLB Teams by Affiliate: Team Names and Logos for each Club". MLB.com. Retrieved November 18, 2025.
- ^ Correa, Christopher (December 12, 2024). "'It's real this time': Nuts to be relocated from Modesto after Mariners sell team". Turlock Journal. Retrieved November 18, 2025.
- ^ Heft, Erin (September 1, 2025). "Modesto Nuts play final home game before moving to Southern California". KCRA. Retrieved November 18, 2025.