Hardrock 100 2026

July 10, 2026

The Hardrock 100 2026 takes place on 10 July 2026 in the San Juan Mountains near Silverton, Colorado, United States, as one of the most extreme and respected ultramarathon trail running events globally. Organized by the Hardrock Hundred Mile Endurance Run, it attracts elite trail runners and endurance athletes from across the world seeking high altitude mountain challenges.

The race features a demanding 100.5-mile loop course through rugged alpine terrain, with more than 10,000 meters of elevation gain. Runners traverse steep climbs, technical descents, and remote mountain passes across the San Juan Range. The route reaches extreme altitudes, where weather conditions can shift rapidly, adding to the challenge of endurance, navigation, and mental strength.

Held in North America, the event is known for its lottery-based entry system due to high demand and limited field size. Participants must demonstrate advanced preparation and self-sufficiency, as aid stations are spaced across remote wilderness sections of the course.

The Hardrock 100 2026 highlights endurance, adventure, and resilience, reinforcing its reputation as one of the toughest ultramarathons in the world. With breathtaking scenery and a highly challenging course, it continues to attract the world’s best ultrarunners seeking a legendary mountain racing experience.