St. Mary's School has an athletic program for students in grades 5 through 8 that runs through the entirety of the school year.
Fall 6th – 8th Boys and Girls volleyball MAES cooperative 6th-8th cross country MAES cooperative 7th and 8th football
Winter 5th – 8th Boys and girls basketball MAES cooperative 6th – 8th wrestling
Spring 6th – 8th Boys and girls track
Information on athletic policies can be referenced in the school's Code of Conduct. We are not members of the WIAA, but follow its guidelines as a model. Physical forms are required every other year, and an alternate card must be filled out the subsequent year in order to participate. Forms can be found in the school office.