Arizona Monster 300

Arizona Monster 300 : Patagonia, AZ

The Arizona Monster is a 304.3 mile point to point ultramarathon across Southern Arizona in the Sonoran Desert. The route crosses remote backcountry and high-elevation mountain ranges and moves through a mix of desert terrain and biologically diverse areas with subtropical winter conditions and two rainy seasons.

Course details include 41,162 feet of elevation gain and 41,463 feet of elevation loss, with 19 aid stations and a 170 hour cutoff (7 days and 2 hours). Terrain breaks down to mostly single-track, with sections on bike path, paved road, and dirt road.

Event services provided on course include marked trails, live runner tracking, aid stations and sleep stations, drop bag transport to many aid stations, and an on-site medical team. Logistics include bus transport options to the start for those parking at the finish, a variety of food and drink at aid stations, and post-race catering. Registered participants receive event swag including a duffel bag and race shirt, and finishers receive handmade buckles, a custom print, and a finisher mug.

The event is organized by Destination Trail. Proceeds support local organizations including the Arizona Trail Association, Patagonia Youth Enrichment Center, and a local food bank. Registration for 2026 used a first come first serve process with a tiered entry fee schedule. Visit the organization's website for the most recent information.