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)
←  2025 Seasons

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) # Date Opponent Score Win Loss Save Attendance Record Streak 1 March 26 Guardians — (—) (—) — — 2 March 27 Guardians — (—) (—) — — 3 March 28 Guardians — (—) (—) — — 4 March 29 Guardians — (—) (—) — — 5 March 30 Yankees — (—) (—) — — 6 March 31 Yankees — (—) (—) — — 7 April 1 Yankees — (—) (—) — — 8 April 3 @ Angels — (—) (—) — — 9 April 4 @ Angels — (—) (—) — — 10 April 5 @ Angels — (—) (—) — — 11 April 6 @ Rangers — (—) (—) — — 12 April 7 @ Rangers — (—) (—) — — 13 April 8 @ Rangers — (—) (—) — — 14 April 10 Astros — (—) (—) — — 15 April 11 Astros — (—) (—) — — 16 April 12 Astros — (—) (—) — — 17 April 13 Astros — (—) (—) — — 18 April 14 @ Padres — (—) (—) — — 19 April 15 @ Padres — (—) (—) — — 20 April 16 @ Padres — (—) (—) — — 21 April 17 Rangers — (—) (—) — — 22 April 18 Rangers — (—) (—) — — 23 April 19 Rangers — (—) (—) — — 24 April 20 Athletics — (—) (—) — — 25 April 21 Athletics — (—) (—) — — 26 April 22 Athletics — (—) (—) — — 27 April 24 @ Cardinals — (—) (—) — — 28 April 25 @ Cardinals — (—) (—) — — 29 April 26 @ Cardinals — (—) (—) — — 30 April 27 @ Twins — (—) (—) — — 31 April 28 @ Twins — (—) (—) — — 32 April 29 @ Twins — (—) (—) — —
May: 0–0 (Home: 0–0; Road: 0–0) # Date Opponent Score Win Loss Save Attendance Record Streak 33 May 1 Royals — (—) (—) — — 34 May 2 Royals — (—) (—) — — 35 May 3 Royals — (—) (—) — — 36 May 4 Braves — (—) (—) — — 37 May 5 Braves — (—) (—) — — 38 May 6 Braves — (—) (—) — — 39 May 8 @ White Sox — (—) (—) — — 40 May 9 @ White Sox — (—) (—) — — 41 May 10 @ White Sox — (—) (—) — — 42 May 11 @ Astros — (—) (—) — — 43 May 12 @ Astros — (—) (—) — — 44 May 13 @ Astros — (—) (—) — — 45 May 14 @ Astros — (—) (—) — — 46 May 15 Padres — (—) (—) — — 47 May 16 Padres — (—) (—) — — 48 May 17 Padres — (—) (—) — — 49 May 18 White Sox — (—) (—) — — 50 May 19 White Sox — (—) (—) — — 51 May 20 White Sox — (—) (—) — — 52 May 22 @ Royals — (—) (—) — — 53 May 23 @ Royals — (—) (—) — — 54 May 24 @ Royals — (—) (—) — — 55 May 25 @ Athletics — (—) (—) — — 56 May 26 @ Athletics — (—) (—) — — 57 May 27 @ Athletics — (—) (—) — — 58 May 29 Diamondbacks — (—) (—) — — 59 May 30 Diamondbacks — (—) (—) — — 60 May 31 Diamondbacks — (—) (—) — —
June: 0–0 (Home: 0–0; Road: 0–0) # Date Opponent Score Win Loss Save Attendance Record Streak 61 June 1 Mets — (—) (—) — — 62 June 2 Mets — (—) (—) — — 63 June 3 Mets — (—) (—) — — 64 June 5 @ Tigers — (—) (—) — — 65 June 6 @ Tigers — (—) (—) — — 66 June 7 @ Tigers — (—) (—) — — 67 June 8 @ Orioles — (—) (—) — — 68 June 9 @ Orioles — (—) (—) — — 69 June 10 @ Orioles — (—) (—) — — 70 June 11 @ Orioles — (—) (—) — — 71 June 12 @ Nationals — (—) (—) — — 72 June 13 @ Nationals — (—) (—) — — 73 June 14 @ Nationals — (—) (—) — — 74 June 16 Orioles — (—) (—) — — 75 June 17 Orioles — (—) (—) — — 76 June 18 Orioles — (—) (—) — — 77 June 20 (1) Red Sox — (—) (—) — — 78 June 20 (2) Red Sox — (—) (—) — — 79 June 21 Red Sox — (—) (—) — — 80 June 23 @ Pirates — (—) (—) — — 81 June 24 @ Pirates — (—) (—) — — 82 June 25 @ Pirates — (—) (—) — — 83 June 26 @ Guardians — (—) (—) — — 84 June 27 @ Guardians — (—) (—) — — 85 June 28 @ Guardians — (—) (—) — — 86 June 29 Angels — (—) (—) — — 87 June 30 Angels — (—) (—) — —
July: 0–0 (Home: 0–0; Road: 0–0) # Date Opponent Score Win Loss Save Attendance Record Streak 88 July 2 Angels — (—) (—) — — 89 July 3 Blue Jays — (—) (—) — — 90 July 4 Blue Jays — (—) (—) — — 91 July 5 Blue Jays — (—) (—) — — 92 July 7 @ Marlins — (—) (—) — — 93 July 8 @ Marlins — (—) (—) — — 94 July 9 @ Marlins — (—) (—) — — 95 July 10 @ Rays — (—) (—) — — 96 July 11 @ Rays — (—) (—) — — 97 July 12 @ Rays — (—) (—) — — 96th All-Star Game in Philadelphia, PA 98 July 17 Giants — (—) (—) — — 99 July 18 Giants — (—) (—) — — 100 July 19 Giants — (—) (—) — — 101 July 20 Reds — (—) (—) — — 102 July 21 Reds — (—) (—) — — 103 July 22 Reds — (—) (—) — — 104 July 24 @ Rangers — (—) (—) — — 105 July 25 @ Rangers — (—) (—) — — 106 July 26 @ Rangers — (—) (—) — — 107 July 27 @ Rangers — (—) (—) — — 108 July 28 @ Dodgers — (—) (—) — — 109 July 29 @ Dodgers — (—) (—) — — 110 July 30 @ Dodgers — (—) (—) — — 111 July 31 Twins — (—) (—) — —
August: 0–0 (Home: 0–0; Road: 0–0) # Date Opponent Score Win Loss Save Attendance Record Streak 112 August 1 Twins — (—) (—) — — 113 August 2 Twins — (—) (—) — — 114 August 4 Tigers — (—) (—) — — 115 August 5 Tigers — (—) (—) — — 116 August 6 Tigers — (—) (—) — — 117 August 7 Rays — (—) (—) — — 118 August 8 Rays — (—) (—) — — 119 August 9 Rays — (—) (—) — — 120 August 11 @ Yankees — (—) (—) — — 121 August 12 @ Yankees — (—) (—) — — 122 August 13 @ Yankees — (—) (—) — — 123 August 14 @ Astros — (—) (—) — — 124 August 15 @ Astros — (—) (—) — — 125 August 16 @ Astros — (—) (—) — — 126 August 18 @ Brewers — (—) (—) — — 127 August 19 @ Brewers — (—) (—) — — 128 August 20 @ Brewers — (—) (—) — — 129 August 21 Cubs — (—) (—) — — 130 August 22 Cubs — (—) (—) — — 131 August 23 Cubs — (—) (—) — — 132 August 24 Phillies — (—) (—) — — 133 August 25 Phillies — (—) (—) — — 134 August 26 Phillies — (—) (—) — — 135 August 28 @ Blue Jays — (—) (—) — — 136 August 29 @ Blue Jays — (—) (—) — — 137 August 30 @ Blue Jays — (—) (—) — — 138 August 31 @ Red Sox — (—) (—) — —
September: 0–0 (Home: 0–0; Road: 0–0) # Date Opponent Score Win Loss Save Attendance Record Streak 139 September 1 @ Red Sox — (—) (—) — — 140 September 2 @ Red Sox — (—) (—) — — 141 September 3 Athletics — (—) (—) — — 142 September 4 Athletics — (—) (—) — — 143 September 5 Athletics — (—) (—) — — 144 September 6 Athletics — (—) (—) — — 145 September 8 Rangers — (—) (—) — — 146 September 9 Rangers — (—) (—) — — 147 September 10 Rangers — (—) (—) — — 148 September 11 @ Athletics — (—) (—) — — 149 September 12 @ Athletics — (—) (—) — — 150 September 13 @ Athletics — (—) (—) — — 151 September 14 @ Angels — (—) (—) — — 152 September 15 @ Angels — (—) (—) — — 153 September 16 @ Angels — (—) (—) — — 154 September 18 @ Rockies — (—) (—) — — 155 September 19 @ Rockies — (—) (—) — — 156 September 20 @ Rockies — (—) (—) — — 157 September 22 Astros — (—) (—) — — 158 September 23 Astros — (—) (—) — — 159 September 24 Angels — (—) (—) — — 160 September 25 Angels — (—) (—) — — 161 September 26 Angels — (—) (—) — — 162 September 27 Angels — (—) (—) — —

Source ^[15]

Roster

Seattle Mariners 2026 spring training roster

• v
• t
• e

40-man roster	Non-roster invitees	Coaches / other
Pitchers 83 Eduard Bazardo 47 Matt Brash 62 Blas Castaño 58 Luis Castillo 74 Jhonathan Díaz 73 Logan Evans -- José A. Ferrer 36 Logan Gilbert -- Domingo Gonzalez 26 Emerson Hancock -- Alex Hoppe 68 George Kirby 37 Jackson Kowar 64 Casey Legumina -- Ryan Loutos 50 Bryce Miller 75 Andrés Muñoz -- Robinson Ortiz 55 Gabe Speier 59 Troy Taylor 54 Carlos Vargas -- Cole Wilcox 22 Bryan Woo Catchers 29 Cal Raleigh Infielders  1 Ryan Bliss  3 J. P. Crawford 21 Miles Mastrobuoni 12 Josh Naylor 76 Leo Rivas  0 Samad Taylor  9 Ben Williamson  2 Cole Young Outfielders 56 Randy Arozarena  8 Dominic Canzone 20 Luke Raley 10 Víctor Robles 44 Julio Rodríguez 31 Rhylan Thomas		Manager  6 Dan Wilson Coaches 14 Manny Acta (bench) -- Austin Nola (bullpen) 66 Fleming Baez (bullpen catcher) 40 Trent Blank (director of pitching strategy) 97 Louis Boyd (field coordinator) 80 Danny Farquhar (assistant pitching) 16 Perry Hill (infield) 70 Bobby Magallanes (assistant hitting) 11 Edgar Martínez (director of hitting strategy) -- Vacant (third base) 95 Justin Novak (bullpen catcher) 33 Kevin Seitzer (hitting) 32 Pete Woodworth (pitching) 53 Eric Young Jr. (first base) 38 active, 0 inactive, 0 non-roster invitees 7-, 10-, or 15-day injured list * Not on active roster † Suspended list Roster, coaches, and NRIs updated December 7, 2025 Transactions • Depth chart → All MLB rosters

Farm system

See also: Minor League Baseball

Level	Team	League	Manager
AAA	Tacoma Rainiers	Pacific Coast League
AA	Arkansas Travelers	Texas League
High-A	Everett AquaSox	Northwest League
A	Inland Empire 66ers	California League
Rookie	ACL Mariners	Arizona Complex League
Foreign Rookie	DSL Mariners 1	Dominican Summer League

Sources ^{[16] [17]}

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

1. "Mariners to Retire Randy Johnson's #51 During 2026 Season" (Press release). Seattle Mariners . Retrieved November 19, 2025– via MLB.com.
2. "Mariners to Retire Randy Johnson's #51 on May 2" (Press release). Seattle Mariners . Retrieved November 23, 2025– via MLB.com.
3. Van Til, Cameron (November 19, 2025). "Seattle Mariners unveil jersey patch for 50th season". Seattle Sports . Retrieved November 23, 2025.
4. 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.
5. "Mariners Announce 2026 Major League Coaching Staff" (Press release). Seattle Mariners. December 5, 2025. Retrieved December 6, 2025– via MLB.com.
6. Van Til, Cameron (December 5, 2025). "Seattle Mariners announce 3 new hires to 2026 coaching staff". Seattle Sports. Retrieved December 6, 2025.
7. Heyen, Billy (November 2, 2025). "Mariners have 4 players, including 2 stars, officially entering free agency". Sporting News . Retrieved November 18, 2025.
8. "Transactions - November 2025". MLB.com. Retrieved November 18, 2025.
9. Deeds, Nick (November 3, 2025). "Mariners Decline Mutual Option On Mitch Garver". MLB Trade Rumors. Retrieved November 18, 2025.
10. 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.
11. "M's Polanco a free agent after declining option". ESPN. Associated Press. November 6, 2025. Retrieved November 18, 2025.
12. Stecker, Brent (November 6, 2025). "Seattle Mariners add a reliever with interesting backstory". Seattle Sports . Retrieved November 18, 2025.
13. Kramer, Daniel (November 18, 2025). "Mariners add bullpen depth with trade for Hoppe". MLB.com. Retrieved November 19, 2025.
14. Jude, Adam (November 21, 2025). "Mariners non-tender three relievers, opening up roster space". The Seattle Times. Retrieved November 23, 2025.
15. Pfeffinger, Ramsey (August 26, 2025). "Seattle Mariners release 2026 schedule". Fox 13 Seattle.
16. "Seattle Mariners Minor League Affiliates". Baseball Reference. Retrieved November 18, 2025.
17. "MiLB Teams by Affiliate: Team Names and Logos for each Club". MLB.com. Retrieved November 18, 2025.
18. 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.
19. Heft, Erin (September 1, 2025). "Modesto Nuts play final home game before moving to Southern California". KCRA. Retrieved November 18, 2025.

External links

• Official website