Trail Running calendar near Crested Butte 2025-2026

The Cannibalism SnowShoe Scramble is an exciting winter event taking place at Lake San Cristobal in Lake City, Colorado. This annual race features a 5K challenge course for adventurous participants and a 1-mile fun route suitable for families and casual snowshoers. Participants are encouraged to dre..

The Gothic Mountain Tour is a scenic running event taking place in Crested Butte, Colorado, featuring two courses: a 23.5-mile competitive race and a 17.85-mile recreational race. This challenging event offers participants a unique opportunity to circumnavigate the stunning Gothic Mountain, making i..

The 20th Annual Run Through Time Trail Marathon and Half Marathon will take place in Salida, Colorado, featuring a marathon, half marathon, and a 2-mile run. The event showcases scenic and challenging courses on dirt roads and narrow trails, with elevations ranging from 7,000 to 9,000 feet. Particip..

The Collegiate Peaks Trail Run, celebrating its 35th anniversary, is a renowned trail running event held in Buena Vista, Colorado. Participants can choose between two challenging distances: 25 miles and 50 miles. Established in 1991, the race features a scenic course that follows single-track and je..

The Sky Pilots Ouray Backyard Ultra is a unique running event taking place in Ouray, Colorado. Participants tackle a 4.167-mile course, with the challenge of completing each lap within an hour to continue racing. The event continues until only one runner remains, who must finish one more lap than al..

The Dynafit Boneyard Boogie is a popular running event held in Eagle, Colorado, featuring two race distances: a 14K and a 6K. This event is part of the Vail Trail Running Series and attracts participants of all skill levels, offering a scenic and challenging course through the beautiful landscapes o..

The Mt Sopris Run-Off is an exciting running event taking place in Carbondale, CO, featuring two race distances: a 10-Mile and a 25k. Scheduled for May 18, 2025, this race will showcase the stunning "Up & Over" single track trail, starting at Flying Dog Ranch and finishing at Rock Bottom Ranch in Ba..

The Spirit Trail Race is an exciting running event held in Buena Vista, Colorado, during Memorial Day Weekend. Participants can choose from various race distances, including a marathon, half-marathon, and 9k. The race promotes community engagement by donating proceeds to local organizations such as..

The Leadville Turquoise Lake 20K is a scenic running event set in Leadville, Colorado, featuring breathtaking mountain views as participants race around Turquoise Lake. The course includes 6.5 miles of hilly paved roads followed by 5.5 miles of single-track dirt trails. Proceeds from the event suppo..

The Fish Hatchery 5K Trail Run is an exciting running event set in the picturesque surroundings of the Leadville National Fish Hatchery in Colorado. Participants will enjoy a scenic cross-country course that meanders through subalpine forests and alongside the Evergreen Lakes and lower Rock Creek ar..

The adidas Terrex Après 5K Trail Run is an exciting event that kicks off the GoPro Mountain Games weekend in Vail, Colorado. Participants can enjoy a scenic evening run on the trails of Vail Mountain, starting and finishing at Nature Valley Mountain Plaza. This 5K race is designed for those looking..

The adidas Terrex 10K Spring Runoff is an exhilarating trail running event set in the stunning Vail Valley, taking place at an elevation of nearly 9,000 feet. Participants will face a challenging course featuring constant elevation changes and diverse terrain, competing against top trail runners for..

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 significant community benefit for local EMTs. The race features a challenging course through the stunning San Juan Mounta..

The Leadville Trail Marathon and Heavy Half is a challenging running event that takes place in the historic mining district of Leadville, Colorado. The marathon spans 26.4 miles, while the Heavy Half covers 15.4 miles, both featuring rugged terrain and high-altitude trails, reaching elevations of ov..

The Vail Hillclimb will take place in Vail on Saturday 5 July 2025.

The Alma Foundation Race in the Clouds Dirt Festival is an exciting outdoor event taking place in Alma, Colorado, from July 10 to July 13, 2025. Set at an elevation of 10,600 feet, the festival features a variety of activities including mountain bike racing, trail running, a free kids' bike race, an..

The Silverheels Trail Runs, part of the Human Potential Running Series, will take place on July 11-12, 2025, in Como, Colorado. This annual event features multiple race distances, including a 100-Mile, 100k, 50-Mile, 60k, 19-Mile, and 10-Mile, catering to a range of runners. The courses traverse stu..

The Leadville Silver Rush 50M is a challenging 50-mile trail run set against the stunning backdrop of the Rocky Mountains. Participants will navigate a course featuring 8,000 feet of elevation gain, technical climbs, and exhilarating descents, making it an ideal preparatory event for the Leadville T..

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 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 loop course featuring 23,500 feet of vertical gain, reaching elevations of up to 13,100 feet. The race traverses beautiful singletrack trails,..