Trail Running calendar near Edwards 2025-2026

The Never Summer 100km and 60km races will take place from July 25-27, 2025, in the scenic State Forest State Park, Colorado. Participants can choose between a challenging 100km course with a total elevation gain of approximately 14,450 feet or a 60km course with about 8,850 feet of elevation gain. ..

The Summit 200 is an extraordinary 200-mile mountain race set in Summit County, Colorado, featuring a challenging loop that showcases stunning hiking trails, forest roads, and scenic views. Participants will experience significant elevation changes, with the lowest point over 9,000 feet and sections..

The Boulder Rez Marathon is a scenic running event held at the Boulder Reservoir in Boulder, Colorado. Scheduled for August 2, 2025, the marathon features a flat course primarily on dirt roads and trails, offering stunning views of the reservoir and the Rocky Mountains. Participants can choose from ..

The Emerald Mountain Epic is a premier running and mountain biking event held in Steamboat Springs, showcasing the area's stunning singletrack trails. This challenging race features various categories, including solo and duo mountain bike races, as well as trail running options such as a full marath..

The Sheep Mountain Ultras, part of the Human Potential Running Series, is an annual trail running event held in Fairplay, Colorado. Scheduled for August 2, 2025, it features three race distances: a challenging 50-mile, a 50k, and a half marathon, all set against the stunning backdrop of the South Pa..

The TransRockies Run is an exhilarating six-day stage race set in the stunning Colorado Rockies, covering a total distance of 120 miles. Scheduled for August 4-9, 2025, this event promises an unforgettable adventure for participants, combining the thrill of trail running with the camaraderie of a vi..

The Leadville Trail 100 Mile Run, known as the "Race Across the Sky," is a prestigious ultramarathon held annually in Leadville, Colorado. Established in 1983, it challenges participants with a grueling 100-mile out-and-back course that features extreme elevation changes, reaching a peak of 12,600 f..

The Arrowhead Half Marathon and 5K is a scenic running event held in the picturesque Arrowhead area, featuring a challenging half marathon course with a significant elevation gain of 3,000 feet over 13 miles. Participants traverse beautiful trails across Arrowhead, Bachelor Gulch, and Beaver Creek S..

The Continental Divide Trail Run, scheduled for August 23, 2025, in Steamboat Springs, Colorado, features three trail race distances: 5 Mile, 16 Mile, and 50K. Participants will experience stunning views while navigating through aspen and pine forests, with significant elevation gains—over 3,500 fee..

The Staunton Rocks! Marathon and Half Marathon, scheduled for August 23, 2025, is a premier trail running event held in Staunton State Park, Colorado. Designed by trail runners for trail runners, the event features a challenging yet accessible course that showcases the park's stunning landscapes, in..

The Grand Traverse Mountain Run is a challenging 40-mile ultra marathon that takes place from Crested Butte to Aspen, Colorado, following the route of the Grand Traverse Backcountry Ski race. Participants face over 6,000 feet of elevation gain as they traverse the stunning Elk Mountains. This event ..

The 10k @ 10,000 Feet is a renowned trail running event held in Steamboat Springs, Colorado, celebrated for its stunning mountain scenery. Scheduled for August 31, 2025, the race features a challenging 10k course that actually measures 6.8 miles, starting at the summit of Rabbit Ears Pass. Participa..

Devil on the Divide is a challenging trail running event held in Empire, Colorado, featuring two race distances: a 50K and a 22K. Participants will experience breathtaking views of Clear Creek County and the Continental Divide, with the 50K course reaching altitudes over 13,000 feet and climbing mor..

The Cirque Series - Arapahoe Basin is a challenging mountain running event set in Keystone, Colorado, featuring a 9.2-mile course with an elevation gain of 2,411 feet. Participants start at 10,780 feet and navigate through scenic trails, including the High Noon parking lot and Black Mountain Lodge, ..

Run Rabbit Run is an annual running event held in Steamboat Springs, Colorado, featuring both 50-mile and 100-mile races through the stunning Routt National Forest. The event, which will take place on September 12-13, 2025, is designed for runners of all levels, with a challenging course that includ..

The Snow Mountain Ranch Trail Running Festival, taking place in Granby, Colorado, offers a stunning backdrop for runners of all levels. Participants can choose from various race distances, including a 50K, 33K, Half Marathon, 10K, and 5K, all set against the picturesque scenery of rolling hills and ..

The Crested Butte Ultra is an exciting trail running event set in the stunning landscapes of Crested Butte, Colorado, known for its exceptional trails and breathtaking views. Participants can choose from three race distances: 50 miles, 55K, and 35K, all set against the backdrop of the Gunnison Natio..

The Golden Leaf Half Marathon is a scenic running event that takes place annually in Aspen, Colorado. The race begins at Fanny Hill in Snowmass and follows the picturesque Government Trail, winding through beautiful aspen groves before finishing at Koch Park in downtown Aspen. This popular half mara..

The Bear Chase Race Endurance Festival, held at Bear Creek Lake Park in Lakewood, CO, features a variety of race distances including 100K, 50 Mile, 50K, Half Marathon, 10K, and 5K. This event is ideal for both novice and experienced trail runners, offering a mix of challenging terrain and stunning v..

The Emerald Mountain Trail Run is a scenic running event taking place in Steamboat Springs, Colorado, featuring two race distances: a 12k (approximately 7.75 miles) and a 4-mile run. The course begins at the base of Howelsen Hill and winds through beautiful aspen-lined single tracks, making it a pic..