About This Race
The 135K represents the ultimate test at Chihuahua by UTMB, demanding exceptional preparation for the sustained effort required across the Sierra Madre Occidental's unforgiving terrain. This distance challenges experienced ultra runners to manage their energy and nutrition across multiple canyon systems and elevation changes, with cutoff times that require steady forward progress throughout the night. Best suited for runners with extensive ultra experience and solid heat training, the 135K offers the complete Copper Canyon experience while testing every aspect of endurance running in this legendary landscape.
Notable Features
Set in Mexico's Copper Canyons, the race honors the Rarámuri people's incredible running tradition while offering runners a chance to experience one of North America's most dramatic and culturally significant landscapes. As a UTMB World Series event, it combines world-class race organization with authentic local culture and stunning high-desert canyon terrain.