Arizona Monster 300
Patagonia, United States • 27-3 Mar-Apr 2026
Event overview
The Arizona Monster 300 is a point-to-point ultramarathon in Southern Arizona, with the finish area near Patagonia, AZ. The route covers 304 miles over Sonoran Desert and high-elevation mountain terrain. The course lists an elevation gain of 41,162 feet and an elevation loss of about 41,463 feet. The event uses a 170-hour cutoff (7 days and 2 hours) and includes 19 aid stations along the route.
Course, logistics and services
Terrain on the route is mostly single-track (about 259.1 miles), with additional sections on bike path (34 miles), paved road (9.5 miles), and dirt road (6 miles). The race offers marked course, live runner tracking, drop-bag transport to many aid stations, sleep stations, on-site medical support, and a variety of food and drinks at aid stations. Other listed services include bus transport to the start for those parking at the finish, packet items such as a duffel bag and race shirt, and finisher awards including handmade buckles, a custom print, and a finisher mug. The event page notes that donations from the race benefit the Arizona Trail Association, Patagonia Youth Enrichment Center, and the local food bank.
Registration is described as first-come-first-serve; the published pricing is $1,995 through April 30 and $2,295 thereafter. Registration will remain open until the event sells out, after which a waitlist will open. Visit the organization's website for the most recent information.