Trail Running calendar near Mount Princeton 2025-2026

The Pikes Peak Ascent is an uphill endurance race from Manitou Springs, Colorado, to the summit of Pikes Peak. It covers 13.32 miles with a total elevation gain of 7,867 feet. The course is described as not a typical half marathon, but a unique and demanding challenge.The event takes place in Manito..

The Pikes Peak Marathon is the 70th Annual race held in Manitou Springs, Colorado. It covers 26.2 miles with 7,834 feet of elevation gain (and loss), starting in Manitou Springs and climbing to the summit of Pikes Peak before returning to the start. Marketed as America’s Ultimate Challenge, the cour..

Be Ovary Aware 5K Run/3K Walk is a Colorado Springs charity race benefiting Sue’s Gift Gynecologic Cancer Support. The 17th annual event takes place at America the Beautiful Park, featuring a flat, scenic out-and-back course along Fountain Creek on the Pikes Peak Greenway Trail, starting and finishi..

Crested Butte Ultra, in Crested Butte, Colorado, features 50 Miler, 55K, and 35K formats. Runners traverse the Gunnison National Forest on single-track trails through mountain meadows and up to high ridges for wide-open vistas of wildflowers, mountain backdrops, and fall foliage. The event aims to f..

The West Line Winder is a scenic trail running event held in Buena Vista, Colorado, featuring two race distances: a 50K (30.6 miles) with 4,000 feet of ascent and a 30K (18.1 miles) with 2,080 feet of ascent. The courses traverse buttery singletrack trails, forest roads, and some paved sections, set..

Golden Leaf Half Marathon, presented by ACG, is the bucket-list race hosted by the Ute Mountaineer and the City of Aspen. The half marathon (approximately 13.1 miles) starts at Fanny Hill in Snowmass and follows the Government Trail through scenic Aspen groves, finishing at Koch Lumber Park in downt..

Sangre de Cristo Trail Festival is a multi-distance trail-running event held in Westcliffe, Colorado, with start/finish at Greenhorn/Music Meadows Ranch near the Grape Creek Trailhead. The festival features six distances: 8-Mile, 27k, 50k, 50-Mile, 100k, and 100-Mile, all run along the Rainbow Trail..

24 Hours of Palmer Lake is a 24-hour ultramarathon held in Palmer Lake, Colorado, on a 0.82-mile loop atop the Palmer Divide at about 7,240 feet elevation. The event is described as a low-fanfare, community-driven affair, welcoming runners who want to push mental and physical limits in a mountain se..

The Sawatch Ascent 50k is a challenging high-alpine trail race held in Nathrop, Colorado, showcasing the stunning Sawatch Range. Covering 33 miles with 7,000 feet of vertical gain, the course features a mix of 26 miles of singletrack, paved, and gravel roads, including 12 miles on the Colorado Trail..

14er Fest is a fall trail-running event in Buena Vista, Colorado, featuring two races: an 8.7-mile (14K) course and a 3.1-mile (5K) course. The 14K starts in Buena Vista River Park, crosses the Arkansas River, and climbs the Midland Hill Trail System for over 500 feet of elevation gain, offering pan..

The Rim to Rim Royal Gorge Races, held in Canon City, Colorado, offer a scenic and challenging running experience featuring three main events: a 5K road run, an 8-mile trail run, and a half marathon trail run. Each race includes the unique opportunity to cross the iconic Royal Gorge Bridge, the high..

The Above the Clouds Ultra takes place in Woodland Park, Colorado on October 4, 2025. The event offers the following distances: 50k 10k Registration closes on October 1, 2025. Registrations include a gender-specific race shirt, personalized bib and finishers’ award, access to aid stations, and a..

The West Elk Challenge is a point-to-point trail marathon in the North Fork Valley of Colorado on October 4, 2025. Distances offered: 26.2 miles (marathon) 30 km option (new in 2025; limited to 50 participants) The event is held during peak fall color and serves as a fundraiser for the Nature Con..

Suffer Better Fall Trail Runs take place at Staunton State Park, just off Highway 285 near Conifer, Colorado. The event offers four distances: 50K, 25K, a 25K FishSlappers edition, and a new 5K. The course showcases CO’s best trails—lovely, flowing singletrack with significant vertical gain (roughly..

Rubey Rescue Run is a 5K uphill trail race held in Aspen, Colorado. The course climbs Buttermilk Mountain, starting near the base at Buttermilk Mountain Lodge and gaining about 1,700 feet to the Cliff House, offering a timed competition and sweeping views of the Maroon Bells. Participants may run wi..

Sage Burner Trail Race is held at Hartman Rocks Recreation Area in Gunnison, Colorado. The event date is Saturday, October 11, 2025. Distances offered include: 50K 28K 15K The event location features high desert terrain with sage brush and 360 degree views of the Maroon Bells, the San Juan Mounta..

The Bobcat Trail Race takes place on Saturday, October 18, 2025, at Palmer Park in Colorado Springs, CO (3650 Maizeland Rd). The event offers multiple trail distances: 50K (about 31.0 miles) 25K (about 15.3 miles) 10K (about 6.4 miles) 5K (about 3.7 miles) The races use Palmer Park’s trail system..

The Bridge Burner Ultra takes place on October 25, 2025, in Cañon City, Colorado. The event offers multiple distances that start and finish at Centennial Park. 35 Mile 50K 35K 10K Registration closes October 22, 2025. Race entries include a gender-specific race shirt, a BOCO trucker hat (excludes..

Located in Colorado Springs’ North Cheyenne Cañon Park, the Canya Cañon Trail Race & Family Hike offers a 4-mile trail race along the Columbine Trail, starting at the Starsmore Visitor & Nature Center (2120 S Cheyenne Canyon Rd). The course follows the beloved Columbine Trail to the Powell parking l..

Colorado Cold Rush Ultra, held in Colorado Springs, offers 50K, half marathon, and 10K options. The race is billed as the "coolest" winter running event and features a route starting at Bear Creek Regional Park, climbing High Drive, and threading through tunnels from the Colorado gold rush along Gol..