Team Logo. 1. FSV Mainz 05 II is a team in the Regionalliga Sudwest. They are the reserve team of 1. FSV Mainz 05. The third league is the highest level a German reserve team can play in. Retrieved from "https://prosportsteams.fandom.com/wiki/1._FSV_Mainz_05_II?oldid=15499" Categories: Teams in Rhineland-Palatinate Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.