Trail Running calendar near Grand Mesa 2025-2026

Adventure Fest at 18 Road is a thrilling weekend celebration of outdoor adventure in Fruita, Colorado, designed for participants of all skill levels. Scheduled for May 10-11, 2025, the event features a variety of activities including a trail half marathon, mountain bike races, and a gravel challenge..

The Fruita Trail Half Marathon is an exhilarating 13.8-mile race set in the stunning desert landscape of Fruita, Colorado. Scheduled for May 11, 2025, this event features a scenic loop course with flowy singletrack, short climbs, and breathtaking views of the surrounding buttes and mesas. As part of..

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 complete one additional lap..

The Dynafit Boneyard Boogie 5K/13K will take place in Eagle on Saturday 17 May 2025. You can run between 6 and 14 kilometers.

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 an ultramarathon held annually in Lake City, Colorado, around the summer solstice. Established in 1995, the race benefits Lake City EMTs and features a challenging course through high mountain terrain, including creek crossings and snowfields. The event attracts arou..

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 is an exhilarating endurance event set for July 19, 2025, at Powderhorn Ski Resort in Mesa, Colorado. Participants can choose between a 12-hour or 6-hour race, tackling a challenging 10K loop with significant elevation gain, or focusing on vertical as..

The Box Canyon Trail Races, set in the stunning high country of Telluride, Colorado, features two challenging courses: a 30K and a 10-mile race. The 30K route offers a scenic loop with significant elevation gain, taking runners past iconic landmarks and through alpine meadows, culminating at the Tel..

Grand Mesa Ultras is an exciting mountain running event held in Grand Mesa, Colorado, featuring races of 50 miles, 55K, and 30K. Set on the world's largest flat-topped mountain, participants can expect challenging trails with rocky climbs, flowing single tracks, and stunning alpine scenery. The even..

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..

The Telluride Mountain Run is a challenging and technical race set in the stunning San Juan Mountains near Telluride, Colorado. Participants can choose from three demanding routes: 40 miles, 24 miles, and 13 miles, navigating through old mining roads, singletrack trails, and alpine tundra. Runners w..

The Grand Traverse Mountain Run is a challenging 40-mile point-to-point ultra marathon from Crested Butte to Aspen, Colorado, following the route of the historic Grand Traverse Backcountry Ski race. Participants traverse the Elk Mountains, gaining over 6,000 feet of elevation, and experience stunnin..

The Ouray 50 Mile Endurance Run is a challenging ultramarathon set in the stunning mountain scenery of Ouray, Colorado. With an elevation gain of 23,582 feet, this race is designed to be more difficult than many 100-mile events, featuring highly technical trails and an average elevation of nearly tw..

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..

The Deep Creek Trail Half Marathon is a scenic trail running event taking place in Telluride, Colorado. The race begins at Last Dollar Road near the Telluride Airport and features a challenging 13-mile course that winds through beautiful Aspen-filled woods along the Deep Creek Trail. Participants wi..

The Crested Butte Ultra is an exciting running event set in the picturesque Crested Butte, Colorado, known for its exceptional trails. Participants can choose from three race distances: 50 miles, 55K, and 35K, all of which traverse the stunning landscapes of the Gunnison National Forest. Runners wil..

The Golden Leaf Half Marathon will take place in Aspen on Saturday 27 September 2025. You can run 13 miles.

The West Elk Challenge is a scenic trail marathon set in the stunning West Elk Mountains of Colorado, taking place on October 4, 2025. Participants can run, walk, or hike through vibrant fall foliage, starting at Crawford Reservoir State Park and traversing gravel roads and single-track trails. The..