Trail Running Calendar Colorado 2024-2025

The Hanging Flume 50k is an ultrarunning trail race taking place at the historic Uravan Ballpark in Uravan, CO. The course consists of a large loop running along abandoned mining two-track and desert single-track, offering stunning views of canyons, slick-rock, and epic vistas. The race aims to prom..

The Above the Clouds Ultra is an annual trail run held in Woodland Park, CO, offering both 50K and 10K distances. Participants will experience the stunning Colorado fall colors, fast singletrack of Rampart Reservoir, and sweeping views of Pikes Peak. The course takes runners through Lovell Gulch, Ra..

The Suffer Better Fall Trail Runs will take place in Pine on Saturday 5 October 2024. You can run between 25 and 50 kilometers.

The Sage Burner Trail Race takes place in Gunnison, Colorado, at the Hartman Rocks Recreation Area, offering 50K, 28K, and 15K race distances. The event provides stunning views of the Maroon Bells, San Juan Mountains, and the Gunnison Basin, with a mix of technical slickrock and smooth singletrack t..

The Indian Creek Trail Runs, organized by the Human Potential Running Series, is an annual event known as the "Fall Classic." Participants can choose from distances of 5-Mile, 15-Mile, 55k, and 50-Mile, all featuring beautiful single-track trails in the Denver Metro area. Runners will experience the..

The Blue Sky Trail Marathon & Half is Fort Collins's original and only trail marathon, taking place on the trails between Horsetooth Mountain Park and the Devil's Backbone Open Space. The course offers over 3,500 feet of elevation gain and loss, appealing to both veteran trail runners and beginners...

The Great Trailhead Foot Race offers a 10-mile and 5k trail run at Bear Creek Lake Park in Lakewood, CO. Participants can enjoy single-track trails with views of Denver's skyline. There is also a 1.1-mile youth race available. Registration fees include park admission, a post-run party, and a finishe..

The Bobcat Trail Race offers 50K, 25K, 10K, and 5K distances in Colorado Springs, CO. The race takes place in Palmer Park, showcasing beautiful views of the city and Pikes Peak from rocky bluffs. Participants can enjoy the amazing trail system located in the heart of the city. Formerly organized by ..

The Bridge Burner Ultra is a challenging trail run taking place in Canon City, Colorado, offering both a 35-mile and 35K option. The course starts in Canon City, following the Arkansas River and passing through historic tunnels before climbing to 7,109 feet for stunning views of the Royal Gorge and ..

The 16th Annual Backcountry Wilderness Half Marathon in Highlands Ranch is set to take place on November 2 at 9:00 am. The 13.1-mile trail race will traverse captivating landscapes, including the Douglas County East/West trail and the Backcountry Wilderness Area. Prize money will be awarded to the t..

The Kessel Run Ultra is a trail run event taking place in Fruita, Colorado, offering distances of 50 miles, 60K, 20 miles, and 10 miles on the Road 18 Trails. The course provides runners with stunning views of the Western Slope and features a mix of smooth and technical singletrack, promising a chal..

The Bingo! Trail Runs @ May Farms is a unique event organized by the Human Potential Running Series. Participants run loops until they obtain a Bingo on their bib by pulling bingo balls from a bag. The course features single and double track trails, farm roads, and is mostly flat with negligible ele..

The Colorado Cold Rush Ultra offers a unique winter running experience in Colorado Springs, CO. Participants can choose from a 50K, half marathon, or 10K distance. The course takes runners along historic High Drive and through tunnels from the Colorado gold rush era. While snow is a possibility, the..

The Thumbs Up Vertical Challenge is an 8-hour ascent trail run taking place on Saturday, December 7, 2024, in Estes Park, CO. Runners will ascend the Thumb Open Space trail, collecting poker chips at the turnaround point to determine their placing. Unique patches will be awarded at 3 milestones, wit..

The Sawmill Trail Runs at Staunton State Park offer 50k, 16-Mile, and 8-Mile distance options. The event takes place in a beautiful setting with diverse geology, soils, water features, and wildlife. Participants can expect challenging terrain and may need traction devices like micro-spikes or snowsh..

The Stories Trail Runs is a unique winter trail running event taking place in Colorado Springs, CO at Cheyenne Mountain State Park. The event features a community atmosphere with multiple loops spread out through the park, offering timed events (30-hr, 15-hr, 6-hr) where runners can challenge themse..

The 19th Annual Run Through Time Marathon, Half Marathon, and 2 Mile Run will be held on Saturday, March 9, in Salida, CO. The courses offer beautiful views of Salida and the Arkansas Valley, with elevations ranging from 7000-9000 feet. The marathon has a 7 1/2 hour time limit, while the half marath..

The Desert Rats Trail Running Festival will take place in Fruita from Saturday 12 April 2025 to Sunday 13 April 2025. You can run between 21 and 99 kilometers.

The Rattler Trail Race takes place in Palmer Park, Colorado Springs, offering 50K, 25K, and 10K distances. Participants will experience scenic views of the city and Pikes Peak from the rocky bluffs. The event provides detailed information on packet pickup, race guides, maps, aid stations, cutoff tim..