Trail Running calendar near Empire 2025-2026

The Cheyenne Mountain Run is a celebrated annual running event held at Cheyenne Mountain State Park, with the next edition scheduled for August 16, 2025, marking its 10th anniversary. Participants can choose from three race distances: 5K, 10K, and 25K. The event features cash prizes for top finisher..

The Into the Hills Eltuck 5K is part of a series of midweek trail races held at Lory State Park in Bellvue, Colorado. Scheduled for August 19, 2025, this event features a challenging course with a steep climb and descent, making it suitable for both novice and experienced trail runners. Participants..

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

The Byers Peak Stampede Half Marathon & 5K Run is an exciting running event set in the stunning Rocky Mountains, just 60 miles from Denver. Scheduled for August 23, 2025, the event features a challenging half marathon and a 5K, catering to athletes of all levels. The courses primarily traverse dirt..

The Staunton Rocks! Marathon and Half Marathon, scheduled for August 23, 2025, takes place in the scenic Staunton State Park, located in Colorado's Front Range Mountains. This event features a challenging yet accessible course, primarily on singletrack trails, allowing participants to enjoy breathta..

The Westminster Night Trail is an annual nighttime running event held at Standley Lake in Westminster, Colorado. Celebrating its 12th year, the race offers distances from 5K to 50K, all on scenic, packed dirt trails illuminated by lights and the stars. Participants enjoy stunning views of the lake a..

The Continental Divide Trail Run is a trail racing event held in Steamboat Springs, Colorado, on August 23, 2025. It offers three race distances: a 5-mile, a 16-mile, and a 50K ultramarathon. The courses feature scenic views of aspen and pine forests, with significant elevation gains—over 3,500 feet..

The Eltuck Valley 12K is part of the Lory Summer Trail Series, taking place at Lory State Park in Bellvue, Colorado. This event features a series of midweek trail races designed for both novice and experienced runners, offering distances from 5K to 12K. The series aims to provide a fun and low-key a..

The Front Range Ultra Dayze is a multi-day ultra-running festival held in Loveland, Colorado, from August 28 to September 1, 2025. It offers a variety of ultra-distance races, including timed events ranging from 12 to 100 hours and distance-based races such as 200-mile and 100-mile runs. The event f..

The Rock Hawk Trail Races will take place in Castle Rock on Saturday 30 August 2025. You can run between 5 and 50 kilometers.

The 10k @ 10,000 Feet is a renowned trail running event held in Steamboat Springs, Colorado, celebrated for its stunning mountain scenery. This challenging race features a 10k course, which is actually 6.8 miles, and a 5k option, both starting at the summit of Rabbit Ears Pass. Participants navigate..

The American Heroes Run is a commemorative running event held in Longmont, Colorado, designed to honor the heroes of 9/11 and celebrate patriotism. Participants can choose from various race distances, including a 100-mile run, marathon, half-marathon, 9.11-mile run, and a 5K, all set on a scenic 1.0..

The Black Squirrel Half Marathon, scheduled for September 6, 2025, takes place in Lory State Park, Bellvue, Colorado. This challenging 13.5-mile trail race features a mix of technical and non-technical terrain, with approximately 2,000 feet of elevation gain. Runners will enjoy stunning views of Hor..

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 for September 6, 2025, in Keystone, Colorado. Participants will tackle a 9.4-mile course with an elevation gain of 2,411 feet, starting at 10,780 feet. The race features three divisions: Sport, Expert, and Pro, catering t..

The HRCA Wildcat Mountain Trail Races, scheduled for September 6, 2025, in Littleton, Colorado, features a variety of events including a 10K, 10M, and a Kid's Race. The race begins at the Douglas County East/West trailhead and takes participants through the scenic HRCA Backcountry Wilderness Area. R..

Run Rabbit Run is an annual ultramarathon held in Steamboat Springs, Colorado, featuring 50 and 100-mile races through scenic mountain terrain. The event showcases challenging courses with significant elevation gains, including climbs over Mount Werner and Emerald Mountain. The 100-mile race offers..

The Breckenridge Oktoberfest 5K is an exciting running event that kicks off the annual Oktoberfest celebration in Breckenridge, Colorado. Set against the stunning backdrop of the changing aspens and beautiful mountain scenery, this 5K trail run takes participants through the picturesque Town of Brec..

The Ned Ned Half Marathon is a longstanding trail running event held in Nederland, Colorado, celebrating its 43rd year. Participants can choose from a half marathon, 10K, or 5K race, with courses winding through scenic dirt roads and single-track trails in the Colorado mountain town. The event is fa..

The Meadowgold 5k &10k will take place in Minturn on Saturday 13 September 2025. You can run between 5 and 11 kilometers.