WIAA Rules for school sports AND club participation
https://www.wiaawi.org/
"SPORTS ACTIVITIES OUTSIDE OF SCHOOL
Athletes may compete in not more than two non-school competitions with prior school approval during each regular sport season. The contest(s) will not count against the individual maximum for the athlete in that sport. Nonschool competition will not be allowed during the respective WIAA tournament series in a sport. Violation of this rule results in loss of eligibility for the remainder of the season (including the WIAA tournament series) and forfeiture of the two non-school opportunities.
A. WIAA rules do not prevent athletes from practicing with nonschool teams or from receiving private skills instruction during the school season. However, they may not participate officially or unofficially (including “banditing”) in more than two nonschool competitions or races, including scrimmages against other teams (with school approval)."
