The Rainiers have been a Mariners affiliate since the 1995 season.
While many affiliates and Major League franchises have shifted relationships in the Pacific Coast League for a variety of reasons, the Mariners and the Tacoma Rainiers will make it 25 straight years together in 2019 and beyond.
On Tuesday, the Mariners announced that they had agreed to an extension of their player development contract with the Rainiers to cover the 2019-2022 seasons. The current player development contract with Tacoma was set to expire after the season.
“The Mariners are excited to be able to extend our relationship with the Rainiers,” Mariners Director of Player Development Andy McKay said in a statement.