Ouray 50 Mile Endurance Run

The Sky Pilots Ouray Backyard Ultra is a unique running event held in Ouray, Colorado, featuring a "last person standing" format. Participants complete a 4.167-mile course, and if they finish within an hour, they continue to run each hour until only one runner remains. The course is designed to be a..

The San Juan Solstice 50 Mile Run is an annual ultra-marathon held in Lake City, Colorado, typically around the Summer Solstice. Established in 1995, the event has evolved into a community benefit for local EMTs. The race features a challenging course that includes high mountain terrain and varying..

The John Cappis is a challenging mountaineering event held in Silverton, CO, honoring John Cappis, a co-founder of the Hardrock 100. Participants tackle an unmarked, off-trail course of approximately 50K with a significant elevation gain of 19,000 feet, navigating rugged terrain and varying altitude..

The Hardrock 100 is a challenging 100-mile ultramarathon held in the San Juan Mountains of southwestern Colorado. Participants face a total elevation change of 66,000 feet, with an average elevation of over 11,000 feet, making it one of the most demanding endurance runs in the world. The course feat..

The Ouray 100 Mile Endurance Run is a challenging ultramarathon set in the breathtaking San Juan Mountain range of Colorado. Participants face approximately 41,862 feet of elevation gain over the course of the race, making it one of the toughest endurance events. Runners must complete eight hours of..

The Silverton Alpine Marathons, taking place in Silverton, Colorado, offers an exhilarating trail running experience through the stunning San Juan Mountains. Participants can choose from three distances: a 50K, a marathon (approximately 26.7 miles), and an 8-mile run. The courses traverse historic m..