The Peoria Diamond Club supplies operational support for the Spring Training of the Seattle  Mariners and the San Diego Padres at the Peoria Sports Complex. The Peoria Diamond Club  was formed in 1994 in response to the desire of the Seattle Mariners and the San Diego Padres to have a non-profit organization handle the operation of the Complex during their Spring Training.  The first year 220 volunteers handled the job, and we have grown stronger each year of our  existence. We currently have over 650 members from all areas of the valley and a great number of winter  visitors.

Money earned by the Club is donated to help support youth organizations of the West Valley.