The Arizona Complex League Mariners are a Rookie-level affiliate of the Seattle Mariners, competing in the Arizona Complex League of Minor League Baseball. The team plays its home games at Peoria Sports Complex in Peoria, Arizona. The team is composed mainly of players who are in their first year of professional baseball either as draftees or non-drafted free agents. History The team first competed in the Arizona League (AZL) in 1988, as a cooperative between the Seattle Mariners and the Boston Red Sox known as the Arizona League Red Sox/Mariners. In 1989, the team became an affiliate solely of the Mariners, and was renamed as such. The team has operated continuously in Arizona since then. Prior to the 2021 season, the Arizona League was renamed as the Arizona Complex League (ACL). Season-by-season record Statistics Mariners team statistics, and top hitter and pitcher statistics, by season Roster References External links Arizona League Mariners Official Site Arizona Complex League teams Boston Red Sox minor league affiliates Professional baseball teams in Arizona Seattle Mariners minor league affiliates Baseball teams established in 1989 Sports in Phoenix, Arizona 1989 establishments in Arizona