Tacoma Rainiers Roster & Staff
Tacoma Transactions
| Date | Transaction |
| 06/04/23 | Seattle Mariners sent RHP Penn Murfee on a rehab assignment to Tacoma Rainiers. |
| 06/03/23 | RHP Ryder Ryan elected free agency. |
| 06/03/23 | LHP Kyle Hart assigned to Tacoma Rainiers. |
| 06/03/23 | Tacoma Rainiers placed LHP Tommy Milone on the 7-day injured list. |
| 06/02/23 | RHP Tyler Driver assigned to Tacoma Rainiers from ACL Mariners. |
| 06/02/23 | Seattle Mariners selected the contract of 1B Mike Ford from Tacoma Rainiers. |
| 06/01/23 | 2B César Hernández elected free agency. |
| 06/01/23 | 2B Justin Lavey assigned to Tacoma Rainiers. |
| 06/01/23 | RHP Bernie Martinez assigned to Everett AquaSox from Tacoma Rainiers. |
| 06/01/23 | Seattle Mariners optioned LF Taylor Trammell to Tacoma Rainiers. |
| 06/01/23 | RHP John Creel assigned to Everett AquaSox from Tacoma Rainiers. |