The Toughest 100 mile race in the U.S. – The Hardrock 100

The Hardrock 100 is back!

After cancellations in 2019 due snow and avalanche risk and in 2020 due to Covid, this legendary mountain ultra is ready to test any athlete who dares toe the start line.


Killian Jornet Wins Hardrock 100 in Arm Sling

Killian Jornet ran 87 miles after dislocating his shoulder to win the 2017 Hardrock 100

Kissing the Hardrock

It is tradition to kiss the famous hardrock after finishing


For those that don’t know of the race:

The Hardrock Hundred Mile Endurance Run is an ultramarathon of 100.5 miles in length, plus 33,050 feet of climb and 33,050 feet of descent for a total elevation change of 66,100 feet, at an average elevation of over 11,000 feet. The run is held on a loop course on 4WD roads, dirt trails, and cross country in Southern Colorado’s San Juan Range, USA. In 2021, the run will be in the counter-clockwise direction.

The Hardrock website describes the challenge well:

This course offers a graduate level challenge for endurance runs. The course is designed to provide extreme challenges in altitude, steepness, and remoteness. Mountaineering, wilderness survival and wilderness navigation skills are as important in this event as your endurance.


The race will start at 6am on July 16th 2021. There will be a number of elite ultra-athletes to run in 2021 including Courtney Dauwalter, Sabrina Stanley, Darcy Piceu, Jeff Browning, Dylan Bowman and Francois D’haene. IRunFar has a great preview of the runners. If you would like to follow along with the excitement, you can do so through socials and live tracking.


* The course will not be changed this year, even though there is a current closure near Ice Lakes due to the Ice Lakes wildfire that burned in October 2020. The San Juan National Forest (SJNF) has made an exception to allow ONLY runners and pacers through the 1.5 mile stretch the course takes through the closure. Please visit for more details about the closure and changes to the KT aid station.

This ultra-marathon can exercise the perseverance and determination of every athlete. If you are a running medal club or organizer, you can customize a running medal to celebrate runners’ victories. This will represent the perseverance of the runner.

For all the details about the race, visit For a great preview of what the race is, how difficult it is and what it means to the runners, watch this fantastic documentary by Billy Yang about Timothy Olson

Share This Post On