Trail Running calendar near Evergreen 2025-2026

The Garden of the Gods Ten Mile Run® is a premier running event held in Colorado Springs, featuring a challenging 10-mile course that winds through the stunning sandstone rock formations of Garden of the Gods Park. Celebrated for over 45 years, this race attracts participants from across the United..

The adidas Terrex 10K Spring Runoff is an exhilarating trail running event set in the stunning Vail Valley, taking place at an elevation of over 8,000 feet. Participants will face a challenging course featuring constant elevation changes and diverse terrain, making it one of the most demanding 10K r..

The Summits Trail Runs, part of the Human Potential Running Series, is an exciting trail running event set in the stunning Rocky Mountains at Granby Ranch Resort, Colorado. Scheduled for June 14, 2025, the event features various race distances, including a challenging 43-mile Quad, a 27-mile Triple,..

The Barr Lake Trail Race, held in Brighton, Colorado, celebrates its sixth year with a scenic and fast course around Barr Lake. The event offers multiple distances, including a 50K, 30K, half marathon, 15K, and 5K, all on dirt trails with minimal elevation gain, making it ideal for PR seekers and tr..

The Estes Park Backyard Ultra is an endurance running event held along the scenic Lake Estes, supporting Childcare and Family Services. Participants run a 4.252-mile course on a paved bike trail, completing a lap every hour until only one runner remains. The race features no predetermined end time,..

Ring the Springs is a trail running event held in Colorado Springs, Colorado, starting and finishing at Rock Ledge Ranch in the iconic Garden of the Gods. The race offers three distances: 100K, 50K, and 35K, each showcasing the area's stunning natural beauty, including rugged mountains, scenic city..

The Sunset Trail Running Festival, taking place in Gold Hill, Colorado, features a variety of trail races including a 28K, 12K, 5K, and a Kids 1K. This event, organized by The Boulder Watershed Collective and T.E.A.M Boulder, aims to raise funds for wildfire preparation and community resilience init..

The Timberview Trail Run is a scenic trail racing event held at Lory State Park in Colorado, featuring three distances: 5K, 5 miles, and 10 miles. The race offers a beautiful course among treetops with views of Horsetooth Reservoir and the surrounding foothills. The 5K is beginner-friendly, while th..

The Leadville Trail Marathon and Heavy Half is a challenging running event held in the historic mining district of Leadville, Colorado. Participants can choose between a 26.4-mile marathon or a 15.4-mile Heavy Half, both featuring breathtaking views and high-altitude trails, with the marathon reachi..

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' race, and an..

The Silverheels Trail Runs, organized by the Human Potential Running Series, is an annual mountain ultramarathon event held in Colorado’s stunning Front Range. The 2025 edition features multiple race distances, including a 100-mile, 100k, 50-mile, 60k, 19-mile, 10-mile, and 11th annual 100k, with ra..

Chase the Moon is a unique overnight ultramarathon held in Highlands Ranch, Colorado, featuring a 12-hour solo and team relay format (3- or 5-person teams) on the scenic Highlands Ranch Backcountry trail system. Runners experience stunning views of the metro area and Front Range under the full moon'..

The Leadville Silver Rush 50M is a challenging 50-mile trail run that tests participants' endurance and grit against the stunning backdrop of the Rocky Mountains. The course features approximately 8,000 feet of elevation gain, taking runners through historic mining districts and offering breathtakin..

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 "10K & 5K @ 10,000 Feet" is a running race held in Vail, Colorado, as part of the Vail Trail Running Series. This event features two distance options: a 10-kilometer and a 5-kilometer race, both conducted at a high elevation of 10,000 feet, offering a challenging course for participants. The rac..

The Barr Trail Mountain Race is a renowned summer mountain running event held in Manitou Springs, Colorado. Covering a challenging 12.6-mile course, participants start at the Cog Railway Station, ascend the iconic Barr Trail to Barr Camp, and then descend back to the Barr Trailhead. This race, estab..

The Pikes Peak Ultra is an annual trail running event held in Colorado Springs, featuring distances of 20K, 30K, 50K, and 50 miles. Starting at Bear Creek Regional Park, the course winds through scenic trails including Cheyenne Canon, Seven Bridges Trail, and Pipeline Trail, with some routes offerin..

The Summit 200 is a challenging ultramarathon scheduled for July 28, 2025, in Summit County, Colorado. It features a 200-mile loop through scenic mountain terrain, with over 40,000 feet of elevation gain and sections exceeding 12,700 feet altitude. The race emphasizes a small, intimate field limited..

The Sheep Mountain Ultras, part of the Human Potential Running Series, is a challenging trail running event held annually in Fairplay, Colorado. The race offers three distances: a 50-mile ultra, a 50k, and a half marathon, all starting and finishing at the Town of Fairplay Beach. Set at an average e..