Tacoma Rainiers Roster & Staff
Tacoma Transactions
| Date | Transaction |
| 10/02/23 | LHP Tommy Milone elected free agency. |
| 10/02/23 | Seattle Mariners recalled RHP Ryan Jensen from Tacoma Rainiers. |
| 10/02/23 | Seattle Mariners recalled RHP Ryder Ryan from Tacoma Rainiers. |
| 10/02/23 | Seattle Mariners recalled C Brian O'Keefe from Tacoma Rainiers. |
| 10/02/23 | Seattle Mariners recalled LF Taylor Trammell from Tacoma Rainiers. |
| 10/02/23 | Seattle Mariners recalled RHP Darren McCaughan from Tacoma Rainiers. |
| 10/02/23 | Seattle Mariners recalled LF Cade Marlowe from Tacoma Rainiers. |
| 10/02/23 | Seattle Mariners recalled RHP Adam Oller from Tacoma Rainiers. |
| 10/02/23 | Seattle Mariners recalled C Cooper Hummel from Tacoma Rainiers. |