Hardrock Hundred Mile Endurance Run

The Hardrock Hundred Mile Endurance Run is an ultramarathon 102.5 miles in length, with 33,000 feet of climb at an average elevation of over 11,000 feet. The race is... Wikipedia

• Date:  July
• Location:  Silverton, Colorado
• Event type:  Ultramarathon trail run
• Distance:  102.5 mi (164.96 km)
• Established:  1992
• Course records:  Men: François D'Haene 21:45:50 (2021, counter-clockwise), Ludovic Pommeret 21:33:06 (2024, clockwise), Women: Katie Schide 25:50:23 (2025, counter-clockwise), Courtney Dauwalter 26:11:49 (2024, clockwise)
• Data source:  DuckDuckGo