Logo

Ouray 100 Mile Endurance Run

Ouray, United States • 18-20 Jul 2025

The Ouray 100 Mile Endurance Run is a challenging ultramarathon held in Ouray, Colorado, nestled in the scenic San Juan Mountains. Covering 100 miles with an elevation gain of approximately 41,862 feet, the course features fourteen significant climbs, including a final 5,000-foot ascent to the Bridge of Heaven. Known for its rugged terrain and breathtaking views, the race finishes at Fellin Park, where runners receive a distinctive belt buckle and can enjoy the nearby Ouray Hot Springs. The event emphasizes a tough, no-frills atmosphere, requiring participants to complete volunteer service or pay an opt-out fee. Prize money is awarded to top finishers, contingent on drug testing. Visit the organization's website for the most recent information.

United States Colorado Ouray

Race information

Website Registration
100 mi
41862 m+
100 Mile
Visit the organization's website for the most recent information.
Trail runs nearby

High Five 100 - Lake City, CO

Lake City - 19 mi from Ouray

The High Five 100 is an extreme ultra-endurance running challenge held in Lake City, Colorado. Covering approximately 90 to 105 miles with over 40,000 feet of elevation gain, the course requires runners to summit five 14,000-foot peaks and six 13,000-foot peaks within 48 hours. Unlike traditional ra..

Telluride Mountain Run

Telluride - 10 mi from Ouray

The Telluride Mountain Run, held in Telluride, Colorado, is a demanding mountain race set in the San Juan Mountains. It offers three challenging distances: 40 miles, 24 miles, and 13 miles. The course features old mining roads, singletrack trails, alpine tundra, mountain passes, exposed ridgelines,..

The Sneffels Round

Ouray

The Sneffels Round is a challenging mountaineering event held near Ouray, Colorado, with a 100-hour time limit. Participants choose their own routes to summit a selection of peaks from a map featuring 39 mountains, including many 13ers and the 14,150-foot Mt. Sneffels.The course covers roughly 75 mi..

Imogene Pass Run

Telluride - 10 mi from Ouray

The Imogene Pass Run will take place in Telluride on Saturday 6 September 2025.

Blisters & Brews Telluride 5k

Telluride - 10 mi from Ouray

Blisters & Brews is a 5k fundraiser race held in Telluride, designed for attendees of the Telluride Blues & Brews Festival to enjoy a morning of exercise before the festivities begin. The event supports the Telluride Adaptive Sports Program and features a scenic route that includes views of Bridal V..

Ouray 50 Mile Endurance Run

Ouray

The Ouray 50 Mile Endurance Run, held in Ouray, Colorado, is a challenging mountain ultramarathon featuring approximately 23,582 feet of elevation gain. Known for its technical and demanding trails, the course is set nearly two miles above sea level amidst stunning mountain scenery. The race is desi..