Seattle Mariners Roster
| # | Name | POS | EXP | DOB | AGE | HEIGHT | WEIGHT | COLLEGE | STATUS |
|---|---|---|---|---|---|---|---|---|---|
| 58 | Luis Castillo | SP | 9 | 12/12/1992 | 32 | 6'2" | 200 | None | Healthy |
| 36 | Logan Gilbert | SP | 5 | 5/5/1997 | 27 | 6'6" | 215 | Stetson | Healthy |
| 74 | Jhonathan Díaz | SP | 5 | 9/13/1996 | 28 | 6'0" | 170 | None | Healthy |
| 68 | George Kirby | SP | 3 | 2/4/1998 | 27 | 6'4" | 215 | Elon | Out |
| 26 | Emerson Hancock | SP | 3 | 5/31/1999 | 25 | 6'4" | 213 | Georgia | Healthy |
| 50 | Bryce Miller | SP | 3 | 8/23/1998 | 26 | 6'2" | 200 | Texas A&M | Healthy |
| 22 | Bryan Woo | SP | 3 | 1/30/2000 | 25 | 6'2" | 205 | Cal Poly | Healthy |
| 55 | Gabe Speier | RP | 7 | 4/12/1995 | 30 | 5'11" | 200 | None | Healthy |
| 46 | Trent Thornton | RP | 7 | 9/30/1993 | 31 | 6'0" | 190 | North Carolina | Healthy |
| 75 | Andrés Muñoz | RP | 6 | 1/16/1999 | 26 | 6'2" | 222 | None | Healthy |
| 48 | Gregory Santos | RP | 5 | 8/28/1999 | 25 | 6'2" | 190 | None | Healthy |
| 83 | Eduard Bazardo | RP | 5 | 9/1/1995 | 29 | 6'0" | 190 | None | Healthy |
| 60 | Tayler Saucedo | RP | 5 | 6/18/1993 | 31 | 6'4" | 205 | Tennessee Wesleyan | Healthy |
| 52 | Collin Snider | RP | 4 | 10/10/1995 | 29 | 6'4" | 195 | Vanderbilt | Healthy |
| 37 | Jackson Kowar | RP | 3 | 10/4/1996 | 28 | 6'5" | 200 | Florida | Out |
| 54 | Carlos Vargas | RP | 2 | 10/13/1999 | 25 | 6'4" | 210 | None | Healthy |
| 47 | Matt Brash | RP | 2 | 5/12/1998 | 26 | 6'1" | 173 | Niagara | Out |
| 64 | Casey Legumina | RP | 2 | 6/19/1997 | 27 | 6'2" | 195 | Gonzaga | Healthy |
| 43 | Luis F. Castillo | RP | 2 | 3/10/1995 | 30 | 6'3" | 212 | None | Healthy |
| 35 | Will Klein | RP | 1 | 11/28/1999 | 25 | 6'5" | 230 | Eastern Illinois | Healthy |
| 59 | Troy Taylor | RP | 1 | 9/9/2001 | 23 | 6'0" | 205 | UC Irvine | Healthy |
| 62 | Blas Castano | P | 0 | 9/8/1998 | 26 | 5'10" | 162 | None | Healthy |
| 18 | Mitch Garver | C | 9 | 1/15/1991 | 34 | 6'1" | 220 | New Mexico | Healthy |
| 29 | Cal Raleigh | C | 5 | 11/26/1996 | 28 | 6'2" | 235 | Florida State | Healthy |
| 12 | Blake Hunt | C | 0 | 11/10/1998 | 26 | 6'4" | 215 | None | Healthy |
| 23 | Rowdy Tellez | 1B | 8 | 3/16/1995 | 30 | 6'4" | 270 | None | Healthy |
| 30 | Austin Shenton | 1B | 1 | 1/22/1998 | 27 | 6'0" | 205 | Florida International | Healthy |
| 27 | Tyler Locklear | 1B | 1 | 11/24/2000 | 24 | 6'2" | 210 | Virginia Commonwealth | Healthy |
| 7 | Jorge Polanco | 2B | 12 | 7/5/1993 | 31 | 6'0" | 208 | None | Healthy |
| 1 | Ryan Bliss | 2B | 2 | 12/13/1999 | 25 | 5'7" | 165 | Auburn | Out |
| 3 | J.P. Crawford | SS | 9 | 1/11/1995 | 30 | 6'0" | 202 | None | Healthy |
| 25 | Dylan Moore | SS | 7 | 8/2/1992 | 32 | 6'0" | 205 | Central Florida | Healthy |
| 21 | Miles Mastrobuoni | SS | 4 | 10/31/1995 | 29 | 5'10" | 185 | Nevada-Reno | Healthy |
| 76 | Leo Rivas | SS | 2 | 10/10/1997 | 27 | 5'8" | 150 | None | Healthy |
| 39 | Donovan Solano | 3B | 12 | 12/17/1987 | 37 | 5'8" | 210 | None | Healthy |
| 9 | Ben Williamson | 3B | 0 | 11/5/2000 | 24 | 6'0" | 210 | William & Mary | Healthy |
| 56 | Randy Arozarena | LF | 7 | 2/28/1995 | 30 | 5'10" | 185 | None | Healthy |
| 20 | Luke Raley | LF | 5 | 9/19/1994 | 30 | 6'3" | 235 | Lake Erie (OH) | Healthy |
| 10 | Victor Robles | CF | 9 | 5/19/1997 | 27 | 6'0" | 193 | None | Out |
| 44 | Julio Rodríguez | CF | 4 | 12/29/2000 | 24 | 6'3" | 228 | None | Healthy |
| 8 | Dominic Canzone | RF | 3 | 8/16/1997 | 27 | 6'0" | 190 | Ohio State | Healthy |