Arrowhead 135

The Arrowhead 135 is a challenging ultra-marathon held in the depths of winter across Northern Minnesota, recognized as one of the toughest endurance races globally. Covering 135 miles on the Arrowhead State Snowmobile Trail, participants can choose to compete on foot, skis, or bicycles. The event typically experiences extreme cold temperatures, often reaching -30 to -40°F, and features a low average finish rate, highlighting its difficulty.

Established to promote human-powered endurance sports, the race also supports charitable causes, including scholarships for children of U.S. Special Operations personnel. The next race is scheduled for January 27-29, 2025. Visit the organization's website for the most recent information.