Dare Mighty Things

“Far better it is to dare mighty things, to win glorious triumphs, even though checkered by failure… than to rank with those poor spirits who neither enjoy nor suffer much, because they live in a gray twilight that knows not victory nor defeat.” -Theodore Roosevelt

Service Requirement

Each participant is required to complete (8) hours of volunteer service between August 1, 2019 and July 14, 2021.

This can be volunteering at a trail ultramarathon or performing physical trail work. Crewing/pacing/coaching do not qualify.

Opt Out Fee – Participants may opt out of the service requirement by making a $100 donation to Ouray Trail Group. This option is available at checkout.

Entrants who have not submitted their service form or paid the opt out fee by (UPDATED) July 17, 2021 will forfeit their registration fee and not be permitted to participate in the event. No exceptions.

Service form link: https://bit.ly/301TVX5


Two videographers followed Avery Collins during the 2016 event. If you want a little taste of what this event is all about, give this documentary a gander. Free for Amazon Prime members. http://a.co/bgXbYJx

North Face Japan followed runner Hiroki during the 2019 event. https://youtu.be/nePYMLmRHuA


With over 40k feet of gain for the 100 miler (and over 20k feet gain for the 50), this will be one of the most difficult things you ever attempt. Lucky for you, Ouray (dubbed the “Switzerland of America”) is also one of the most beautiful places in the world. Situated in the rugged and stunning San Juan Mountain range in southwest Colorado, your senses will be just as overwhelmed with the views as your quads and lungs are with the relentless climbs. When you top out at the Bridge of Heaven after the final 5,000 foot climb, you will know it is all downhill to Fellin Park where your big belt buckle and the Ouray Hot Springs await.

Tracker Fee

Each year we spend around $50 per runner to provide live GPS tracking. This is our single biggest expense. We will be passing on a portion of this cost to participants. This required $30 fee will help us continue to provide this important service. Note: Even if you own you own SPOT or inReach, this fee is still required so that we can guarantee there is a tracker available for you on race day. Starting in 2021, this charge will be included in the registration fee.

Cash Purse / Drug Testing

Top male 100 mile finisher will receive $1,000. Top female 100 mile finisher will receive $1,250. Top male 50 mile finisher will receive $500. Top female 50 mile finisher will receive $625. The payment of these cash awards will be subject to the results of urine and/or blood testing that will be administered to winners immediately after the event. Banned substances tested for will include (but not be limited to) steroids, testosterone, EPO, and THC. (Fear not, Colorado people. Only THC levels above the threshold of 150 ng/ml will trigger a positive result. Doping agencies chose that threshold so that out-of-competition use should not trigger a positive result. In other words, lay off the magic brownies prior to and during the event.)


Thursday, 7/29/21, 12 – 5 PM, Early packet pickup at Fellin Park for both events
Thursday, 7/29/21, 6 – 7 PM, Optional pre-race meeting at Fellin Park
Friday, 7/30/21, 8 AM, 100 Mile Start, Fellin Park (52 hour cutoff)
Saturday, 7/31/21, 12 PM, 50 Mile Start, Fellin Park (24 hour cutoff)
Sunday, 8/1/21, 11 AM, Drug testing of 1st place male and female for both events, Fellin Park
Sunday, 8/1/21, 12 PM, Cutoff for both events, Fellin Park
Sunday, 8/1/21, 12:30, Award Ceremony, Fellin Park

Live Tracking

Racers will be required to carry a SPOT tracker during the race. (We will provide this, even if you already own one.) Runners’ locations will be updated every five minutes on a route map on our website through a third-party interface.

No Whining

Non Laurus Luctatio

“Not the prize but the struggle”

This event is about as tough as they come while still being doable (this is no Barkley, our oldest finisher was 62). It’s low key, no frills, and old school. This event goes against the grain of the everyone’s-a-winner, participant-trophy nonsense that seems to be creeping into the sport. If you survive this bad boy, you’ll uneventfully pass through two orange cones and be handed a cold piece of metal you can wear on a belt. With pride.

July 21, 2023


100 Miler
July 21, 2023 (Friday)
100 miles
The information about this event is based on data from the official website or may be provided by the organiser. Before booking flights or accommodation check the event's website and social media. If this listing is not up-to-date, please let us know at [email protected]


From Around the web

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