Offseason
- October 11, 2002: Scott Podsednik was selected off waivers by the Milwaukee Brewers from the Seattle Mariners.
- December 6, 2002: John Olerud was signed as a Free Agent with the Seattle Mariners.
- January 16, 2003: John Mabry was signed as a Free Agent with the Seattle Mariners.
Read more about this topic: 2003 Seattle Mariners Season