All entrants to the Mogollon Monster 100 Endurance Race are required to perform 8 hours of volunteer work at the MOG100, another ultra event or other event approved by the Mogollon Monster 100 race director. (Other work usually accepted includes trail maintenance for any length official race or state or national trail system as well as work at a series of shorter races, when ultras are not available. Also generally accepted is work with youth running programs or adaptive sports programs.) Contact the Race Director with questions.