Silverton, Colorado · Trail
Official site ↗Hardrock 100
A 100-mile loop through Colorado's San Juan Mountains with about 33,000 feet of climbing at an average elevation above 11,000 feet.
Friday, July 9, 2027
The lottery is open through October 14, 2026.
Distances
- Distance
- 102.5 mi (165 km)
- Vert gain
- 33,000 ft (10,100 m)
- Cutoff
- 48 hr
Counterclockwise year · WSER 2028 qualifier (sub-48:00)
| Distance | Vert gain | Cutoff | Notes |
|---|---|---|---|
| 102.5 mi (165 km) | 33,000 ft (10,100 m) | 48 hr | Counterclockwise year · WSER 2028 qualifier (sub-48:00) |
Course records: Katie Schide 25:50:23 (2025) · Ludovic Pommeret 21:11:36 (2026)
About
The Hardrock Hundred Mile Endurance Run loops through the San Juan Mountains connecting Silverton, Telluride, and Ouray, crossing thirteen major passes and the 14,048-foot summit of Handies Peak. The direction alternates each year: clockwise years climb "up the walls and down the ramps," counterclockwise years reverse it.
Billed as a post-graduate run rather than a race, it holds a 48-hour cutoff and finishes when runners kiss the Hardrock, a painted boulder in Silverton. Weather, altitude, and terrain make it one of the most demanding hundred-milers anywhere.
Course
A loop over thirteen major passes, most above 12,000 feet, crossing the 14,048-foot summit of Handies Peak near the midpoint. The average elevation is over 11,000 feet, and the direction alternates each year; 2026 runs clockwise.
How to register
Entry is by lottery each December, with separate pools for veterans, previous finishers, and never-started applicants. A qualifying finish at one of a short list of designated races is required. The field is capped near 146 runners, so odds for first-time applicants are long and many wait years.