On August 9, 2010 — The Mariners, mired in last place in the AL West with a record of 40-72, fire manager Don Wakamatsu and three coaches. Daren Brown, manager of AAA Tacoma, replaces him on an interim basis.

Source:
Baseball Reference August 9
National Pastime
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game