Tacoma Rainiers Roster & Staff
Tacoma Transactions
| Date | Transaction |
| 05/25/23 | Tacoma Rainiers activated SS Pat Valaika. |
| 05/23/23 | C Pedro Severino assigned to Tacoma Rainiers. |
| 05/23/23 | Tacoma Rainiers transferred SS Pat Valaika to the Development List. |
| 05/22/23 | RHP Marcus Walden assigned to Tacoma Rainiers. |
| 05/22/23 | Seattle Mariners sent 1B Dylan Moore on a rehab assignment to Tacoma Rainiers. |
| 05/22/23 | RHP Nick Davila assigned to Everett AquaSox from Tacoma Rainiers. |
| 05/05/23 | Tacoma Rainiers activated RHP Nick Davila. |
| 05/05/23 | RHP Jarod Bayless assigned to Modesto Nuts from Tacoma Rainiers. |
| 05/05/23 | RHP Nick Davila assigned to Tacoma Rainiers from Modesto Nuts. |
| 05/02/23 | RHP John Creel assigned to ACL Mariners from Tacoma Rainiers. |
| 05/02/23 | OF Jack Larsen assigned to Tacoma Rainiers from Arkansas Travelers. |
| 05/01/23 | Tacoma Rainiers released CF Delino DeShields. |
| 05/01/23 | Seattle Mariners sent RHP Diego Castillo outright to Tacoma Rainiers. |