The 2025 edition has been announced. The event will take place on 11 Jul, 2025 (Fri). The details about this event may change. Please check the official website for possible updates.
Hardrock 100 Endurance Run
Silverton, CO, USA
11 Jul, 2025 (Fri)
Trail running
100 mi
About the event
Experience the ultimate challenge with the Hardrock Hundred Mile Endurance Run, an ultramarathon set in the stunning San Juan Range of Southern Colorado. This intense 100-mile loop course will have you conquering a total elevation change of 66,100 feet, with breathtaking views at an average elevation of over 11,000 feet. The course includes a mix of 4WD roads, dirt trails, and rugged cross country terrain, pushing your endurance to the limit while testing your mountaineering, wilderness survival, and navigation skills.
Races offered by this event
You have 34 weeks to prepare
Hardrock 100 Endurance Run
11 Jul, 2025 (Fri) - 06:00
Trail running
100 mi
33000 ft of elevation gain
View course map
Solo
On site
Trail
Extreme
Timed
Mountain range
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Results 2017: Hardrock 100 Endurance Run
17 Jul, 2017 (Mon)
Credit : TETSURO Buford Ogata
Despite having dislocated his shoulder at Mile 40, Kilian Jornet managed to win the 100.5 mile race in 24:31:48. Mike Foote secured second in this year’s race with a time of 24:54:54. Rounding out the top three was Joe Grant with a time of 25:37:27.
For the women, Caroline Chaverot took top spot in 28:31:18 . She bested Darcy Piceu who crossed the finish line 50 minutes 19 seconds behind her. While Nathalie Mauclair came in third at 30:33:50.
This year, a record 126 runners crossed the finish line.
Top 5 Men
Top 5 Women
Complete results
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