Competition, other than normally scheduled league or non-league games, where two or more legally registered teams compete in the same subcontracted arenas within a specified time frame and where playing fees are channeled to a specific person, organization, or location for the purpose of declaring a champion.   
Gatherings consisting of more than four teams, except Association exchanges, are responsible for those fees required by tournaments even though there is no winner declared.

MAHA/USA sanctions hundreds of tournaments through out the course of the year.  All Invitational Tournaments held in Michigan must secure a sanction and sanction number from the MAHA before a tournament is advertised or promoted, or any tournament fees are collected.  All the sanctioned tournaments are listed on the MAHA web site.