Trail Running calendar near Crawford 2025-2026

The Sky Pilots Ouray Backyard Ultra is a unique endurance running event held in Ouray, Colorado, starting at Fellin Park. Participants run a 4.167-mile out-and-back course featuring a mix of asphalt track, smooth dirt roads, and the scenic Uncompahgre River Walk with minimal elevation gain (140 feet..

The Dynafit Boneyard Boogie is a trail running event held in Eagle, Colorado, as part of the Vail Trail Running Series. It features two race distances: 14K and 6K, offering runners scenic and challenging courses through the mountainous terrain. The event is known for its vibrant atmosphere, attracti..

The Mt Sopris Run-Off is an exciting trail running event held in Carbondale, CO, featuring two race distances: 10 miles and 25k. Scheduled for May 18, 2025, the race takes participants along the scenic "Up & Over" single track trail, starting at Flying Dog Ranch and finishing at Rock Bottom Ranch. T..

The San Juan Solstice 50 Mile is a challenging ultramarathon held annually near Lake City, Colorado, typically around the summer solstice in June. Established in 1995, the race covers a 50-mile course through high mountain terrain, including snowfields and creek crossings along the Continental Divid..

The John Cappis is a challenging mountain endurance event held in Silverton, Colorado, on June 28, 2025. It features a roughly 50-kilometer course with approximately 19,000 feet of elevation gain, traversing peaks in the San Juan Mountains. The course is mostly off-trail and unmarked, requiring GPS..

The Hardrock 100 is a challenging 100-mile ultramarathon held annually in the San Juan Mountain Range of southwestern Colorado. The race features a counter-clockwise loop course with a total elevation change of about 66,000 feet, including 33,000 feet of ascent and descent, averaging an elevation of..

The Grin & Bear It is Crested Butte’s oldest trail running event, featuring a 15 km out-and-back race and a new 25 km loop, both starting and ending at the Crested Butte Nordic Center. The event takes place in July and offers scenic routes through mountain trails with significant elevation changes,..

The High Lonesome 100 is a challenging 100-mile trail race set in the stunning Sawatch Range of the Colorado Rocky Mountains. Participants will experience a grueling course featuring 23,500 feet of vertical gain, reaching elevations of 13,100 feet. The race includes a loop that traverses beautiful s..

The Ouray 100 Mile Endurance Run is a challenging ultramarathon set in the breathtaking San Juan Mountain range of Colorado. Participants will face approximately 41,862 feet of elevation gain, making it one of the toughest endurance events. The race features stunning views and demanding climbs, culm..

The Audi Power of Four Trail Run is an exciting running event set in the scenic mountains of Aspen Snowmass. Participants can choose from three different race distances: a challenging 50K, a 25K, and a 10K run, catering to various skill levels. This event not only offers a chance to enjoy the beauti..

The Powderhorn Mountain Ultra and Vert Challenge, held at Powderhorn Mountain Resort in Mesa, Colorado, offers a thrilling mountain running experience. Participants can choose between a 12-hour or 6-hour ultra on a 10K loop course with 1,546 feet of elevation gain per lap, or a Vertical Challenge fo..

The Silverton Alpine Marathons, held in Silverton, Colorado, offer trail running adventures through the stunning San Juan Mountains. Participants can choose from three distances: an 8-mile out-and-back, a marathon (~26.8 miles), and a challenging 50K (~31.8 miles). The marathon and 50K courses trave..

The Kendall Mountain Run is a challenging mountain race held annually in Silverton, Colorado. It features two main distances: a 12-mile course and an 11-kilometer course. Starting at 9,318 feet in downtown Silverton, runners ascend jeep roads to a thrilling final scramble to the summit of Kendall Mo..

The Creede 100 is an exhilarating 100-mile ultramarathon set in the historic mining town of Creede, Colorado. With only 100 spots available, this challenging race offers participants breathtaking views of the San Juan Mountains, including climbs above 12,000 feet and scenic trails along the Continen..

The Box Canyon Trail Races in Telluride, Colorado, feature two challenging mountain courses: a 30K and a 10-mile race. The 30K course offers a scenic loop through high alpine terrain with approximately 5,800 feet of vertical gain, passing iconic landmarks like Bridal Veil Falls and reaching elevatio..

The Grand Mesa Ultras, held on the Grand Mesa in Colorado, offers mountain trail races including a 50-mile, 55K, and 30K distance. Set on the world's largest flat-topped mountain with an average elevation over 10,000 feet, the event features challenging, technical trails with rocky climbs, fast fore..

The Aspen Backcountry Marathon, held in Aspen, Colorado, offers three challenging trail running distances: a 50K, a marathon, and a heavy half-marathon. The courses run almost entirely on dirt trails featuring diverse terrain with significant ascents and descents, and elevation gains up to 5,512 fee..

The High Five 100 is a unique ultra-running challenge held in Lake City, CO, designed for elite runners seeking an extraordinary test of endurance. Participants must navigate a course that includes 24 designated proof points and checkpoints, with the goal of returning to Lake City within a 48-hour t..

Pyro's Push It Up Trail Run is a scenic trail running event held in New Castle, Colorado, set in the beautiful Flat Tops area. The race offers three distance options: a family-friendly 3.5K, a more challenging 7.7K, and a demanding 13K Double Down course. Participants run along mountain trails that..

The Telluride Mountain Run, held in Telluride, Colorado, is a demanding mountain race set in the scenic San Juan Mountains. Offering three distances—40 miles, 24 miles, and 13 miles—this event challenges runners with technical terrain including old mining roads, singletrack trails, alpine tundra, ex..