Trail Running calendar near Colorado Springs 2025-2026

Niwot's Challenge is a demanding ultramarathon held in Colorado's Front Range, inspired by the Barkley Marathons. This grassroots event, limited to 40 participants, emphasizes navigation skills as runners traverse mostly off-trail terrain using only a map and compass. The challenge includes various..

The Mountain Ridge Trail Race, taking place on May 10, 2025, in Highlands Ranch, Colorado, offers a variety of distances for trail running enthusiasts, including a 21-mile, half marathon, 10K, and 5K. Celebrating its 11th year, the race features scenic dirt and single-track trails with manageable el..

The Valkyrie Trail Race, held in Cheyenne Mountain State Park near Colorado Springs, Colorado, is a women-focused trail running event offering distances from 4 miles up to 50 kilometers. The course begins on crushed limestone meadows before transitioning to singletrack trails ascending Cheyenne Moun..

The Ram Party Trail Runs is a multi-distance trail running event held at Rampart Reservoir near Woodland Park, Colorado, on May 17, 2025. It offers races ranging from 15K to 55 miles, featuring scenic courses with stunning views of Pikes Peak and the Front Range. The courses include point-to-point a..

The Endure Trail Runs, organized by the Human Potential Running Series, takes place at Mueller State Park in Divide, Colorado. This unique event features a variety of races, including a 10k, Half Marathon, and timed challenges of 12 and 24 hours. Participants in the 12-Hour and 24-Hour events will d..

The Ol' College Try 24 Hour Ultra is Denver's inaugural 24-hour ultra race, organized by Rise Again Running Events in collaboration with Tall Tales Ranch. Scheduled for May 24-25, 2025, at Auraria Campus, this event invites runners of all abilities to challenge themselves in a non-stop race, fosteri..

The Spirit Trail Race is a running event held in Buena Vista during Memorial Day Weekend, featuring a marathon, half-marathon, and 9K race. Participants start at the South Main Town Square area, with race times beginning early in the morning. The event supports local organizations such as the Buena..

The 3rd Latino Ultra Nature Adventure (LUNA) is a unique trail running event scheduled for May 31, 2025, in Boulder, Colorado. This culturally relevant and inclusive event features various distances, including 5km, 7 miles, 15 miles, and a marathon. LUNA aims to promote physical and mental health th..

The Reuter-Hess Trail Incline is a challenging 10k trail race held in Parker, Colorado, featuring about 600 feet of elevation gain. The course begins with a lollipop loop that includes a steep incline with widely spaced stairs, making running difficult. After the incline, runners navigate rolling te..

The North Fork 50 Mile and 50K ultramarathon takes place in the scenic Colorado mountains near Buffalo Creek. The course features nearly all singletrack trails, with some double track sections, traversing diverse landscapes including burn areas from a 1996 fire, ponderosa pines, and granite rock for..

Mace’s Hideout 100 is a challenging and scenic ultra-marathon set in the stunning Wet Mountains of Colorado. Participants can choose between a 100-mile race and a 50-mile option, with only 75 spots available for each distance. The course features diverse ecosystems, transitioning from lush, wet envi..

The Great Divide Ultra is a premier trail running event held in Divide, Colorado, featuring distances of 100 miles, 100k, 50k, and 25k. Set in the scenic Mueller State Park, the course showcases spring-fed meadows, massive Pikes Peak granite rocks, and stunning mountain views. The race uses a smooth..

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..

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 featuring challenging terrain with significant elevation gains and stunning natural sce..

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 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 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 a premier trail running event held in Colorado Springs, Colorado, showcasing some of the area's best trails. Starting at Bear Creek Regional Park, the course ascends High Drive and passes through Cheyenne Canon, including the iconic Seven Bridges Trail and Pipeline Trail. Run..