Ouray 100 Mile Endurance Run
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About the race
The Ouray 100 Mile Endurance Run is a mountain ultramarathon held in Ouray, Colorado, organized by Ouray Ultras. The course is a 100 Miler in the San Juan Mountain range with an advertised elevation gain of 41,862 feet and fourteen climbs, including a final ascent to the Bridge of Heaven before a descent to Fellin Park.
The event requires each entrant to complete eight hours of volunteer service prior to July 1; acceptable options include volunteering at a trail ultramarathon or performing physical trail work. Crewing, pacing, and coaching do not qualify. Participants may opt out of the service requirement by making a $100 donation to Ouray Trail Group. Entrants who have not submitted a service form or paid the opt out fee by July 10 will forfeit their registration and will not be allowed to participate.
Racers must carry a SPOT tracker provided by the organizers; locations are updated every five minutes. The 100 mile race has a 52 hour cutoff. The event is not a UTMB qualifier.
Top finishers receive a cash purse, with the top male and top female prizes specified; payment of these awards is contingent on urine and/or blood testing for banned substances, with tests for substances including steroids, testosterone, EPO, and THC. Podium awards are laser cut from traffic cones. Visit the organization's website for the most recent information.
