Arizona Monster 300

Arizona Monster 300

The Arizona Monster 300 is a 304-mile point-to-point ultramarathon through the Sonoran Desert in Southern Arizona, with the official location listed as Patagonia, AZ. The route crosses National Forest Lands and passes a mix of backcountry terrain and high-elevation mountains within the Sonoran ecosystem.

Course metrics include approximately 304 miles total, 41,162 feet of elevation gain and about 41,463 feet of elevation loss, and a 170 hour cutoff (7 days and 2 hours). The course surface is predominantly single-track (about 259.1 miles, 84%), with sections of bike path (34 miles, 10%), paved road (9.5 miles, 3%), and dirt road (6 miles, 2%). There are 19 aid stations along the route.

Event logistics note live runner tracking, drop bag transport to multiple aid stations, aid and sleep stations, and on-site medical support. Transportation options include a bus ride to the start for those parking at the finish. The event provides participant gear such as a duffel bag and race shirt, and finisher awards that include handmade buckles, a custom print, and a finisher mug. Donations from the event benefit local organizations including the Arizona Trail Association, a youth enrichment center in Patagonia, and the local food bank. Visit the organization's website for the most recent information.