Trail Running Calendar Colorado 2024-2025

The Red Feather Trail Jamboree is a three-day trail running weekend in Red Feather Lakes, CO, featuring a 50-mile race on Friday, a 50k race on Saturday, and a half marathon on Sunday. The event takes place on private land at the Ben Delatour Scout Camp and surrounding National Forest, offering chal..

The Mountain Marmot Trail Run will take place in Durango on Saturday 21 September 2024. You can run between 0 and 0 kilometers.

The Sunlight Showdown will take place in Glenwood Springs on Saturday 21 September 2024. You can run between 0 and 0 kilometers.

The 12th annual Snow Mountain Ranch Trail Running Festival will take place on September 21, 2024, at the YMCA of the Rockies in Granby, CO. The event offers 4 races - Half Marathon, 10K, 5K, and 50K, with the option to participate in the Moosehead Challenge or Baby Moose Challenge by completing mult..

The Pikes Peak Marathon, established in 1956, is the oldest continuously held marathon in the United States. The race takes runners from Manitou Springs, Colorado, to the summit of Pikes Peak at 14,115 feet and back down for a total of 26.2 challenging mountain miles. The Pikes Peak Ascent, a sister..

The Ouray Mountain Trail Run is a 13-mile race starting at 7:30 am at Fellin Park in Ouray, CO. Registration closes on September 19, 2024, at 11:59 PM MT. The race offers Outdoor Research t-shirts to all runners and awards for the top 3 male and female participants. The event is a cupless race with ..

The Silver Creek Mountain Runs will take place in Empire on Saturday 21 September 2024. You can run between 13 and 50 miles.

The Sangre de Cristo Trail Festival offers various trail run distances ranging from 8-Mile to 200-Mile races. The event takes place at Music Meadows Ranch on the Rainbow Trail in the Sangre de Cristo mountains, providing a challenging yet scenic course. Participants can enjoy running through the Sou..

The West Line Winder trail run offers 18 or 30 miles of scenic single track and forest roads with breathtaking views of the Collegiate Peaks in Buena Vista, Colorado. Hosted by Freestone Endurance, this race is suitable for all levels of trail runners, from beginners to experienced ultra runners. Pa..

The Crested Butte Ultra offers a challenging 50 Miler, 55K, and 35K race through the stunning trails of Crested Butte, CO. Runners will enjoy breathtaking views of Gunnison National Forest, wildflowers, and the beautiful changing aspen leaves. The event's website provides essential information such ..

The Wildcat Mountain trail races start at the Douglas County East/West trailhead and go through the HRCA Backcountry Wilderness Area Wildcat Mountain trail system. Participants receive a dry-fit race t-shirt, custom finisher award, and can enjoy a free pancake breakfast and post-race beers. The cour..

The Louisville Trail Race, taking place on September 28, 2024, offers a Half Marathon, 10K, and 5K race on mostly flat terrain with a challenging hill providing a stunning view of the front range mountains. The event is family-friendly with post-race festivities at Louisville Community Park. The cou..

The 24 Hours of Palmer Lake is an endurance run featuring a 0.82-mile loop course surrounded by mountains at an elevation of 7,240 feet. This community-driven event is for those who enjoy pushing their limits in a beautiful setting. Participants can compete to cover the most distance in 24 hours and..

The Deep Creek Trail Half Marathon is a 13-mile trail run starting at Last Dollar Road near Telluride Airport. Participants will run through Aspen-filled woods along Deep Creek Trail back to Telluride. The course consists mostly of singletrack and has a 5-hour time cutoff. Bib pick-up is available t..

The Emerald Mountain Trail Run will take place in Steamboat Springs on Saturday 28 September 2024. You can run between 4 and 7 miles.

The Bear Chase Race Endurance Festival offers a variety of distances including a 100k, 50 mile, 50k, Half Marathon, and a Baby Bear 10k Trail Race at Bear Creek Lake Park in Lakewood, CO. The course provides a mix of challenging terrain and scenic views, with 95% of the race on dirt and single track..

The Rim to Rim Royal Gorge Races, celebrating its 14th year, offers a 5K road race, 8-mile trail run, and a half marathon trail run on October 5th. The races provide stunning vistas, culminating in a memorable finish by running across the iconic Royal Gorge Bridge. Proceeds from the event benefit St..

The Castle Rock Trail Festival offers a variety of trail run options, from the liveBIG 5K to the Ultra Marathon 50K, taking place on the first Saturday in October. Participants will receive an event T-shirt and finisher’s medal, and there will be professional chip timing with a disposable bib chip. ..

Participants can join the West Elk Challenge Trail Marathon, a point-to-point trail marathon through the West Elk Mountain range during peak fall colors. The race starts at Crawford Reservoir State Park, passes through farms, ranches, and climbs through aspen stands on Mt. Lamborn. The course includ..

The Camp 4 Coffee Cart to Cart Trail Race will take place in Crested Butte on Saturday 5 October 2024. You can run between 10 and 19 miles.