Mogollon Monster

Event overview

The Mogollon Monster takes place September 12-13, 2026 near Pine, Arizona on the Mogollon Rim. The event includes two race distances, a long ultramarathon and a shorter trail race. The 100 mile race is point-to-point across rim country. Key published stats for the 100 mile event list a course distance of 102.3 miles, total elevation gain of 15,900 feet, and a maximum elevation near 7,912 feet. The 42K event is listed as 26.7 miles with about 4,554 feet of elevation gain and a maximum elevation near 7,480 feet.

Course and logistics

The route follows multiple rim climbs and high ridge trails, with course elevations generally between about 5,200 and 8,000 feet. The 100 mile course ascends the Rim in several locations and includes technical single track sections such as the Highline and Donahue areas. The 100 mile race has a time limit of 38 hours; the 42K has a 12 hour limit.

Race requirements include a qualification for the 100 mile distance: completion of at least a 50 mile race prior to entry. The 100 mile also carries an 8 hour volunteer service requirement or a suggested donation alternative. Crew and pacer rules vary by distance and location: some aid stations allow crew access and pacers, while others do not. The event uses a shuttle system and an Old Pine parking area for runners and weekend parking. Drop bags are available at specific 100 mile aid stations; the 42K has no drop bag service. Visit the organization's website for the most recent information.