Trail Running calendar near Highlands Ranch 2026-2027

A four-race August trail series at Lory State Park in Fort Collins featuring 5k, 10k and 12k courses with chip timing, series points and end-of-series awards. Post-race pizza and beverages are provided.

Trail races of 5k, 10k and half marathon on Frisco Peninsula trails with lake and mountain views, single-track sections, chip timing, aid stations, and post-race food and beer for participants 21 and older.

Historic pack burro race in Leadville, Colorado at over 10,000 feet, with a long out and back of about 21 miles toward Mosquito Pass and a shorter 6 to 8 mile course. Teams pair one runner with one burro.

Pat's Pony Express is a trail race at Rampart Reservoir in Colorado Springs offering 8 mile and 16 mile distances. Founded in 1977, it takes place the second Saturday of August and includes a member discount.

Experience a focused trail run through the hills of Lory State Park with 1,700 feet of elevation gain. Enjoy a post-race social with pizza and beer in a scenic outdoor setting limited to 100 participants.

A four‑race midweek trail series at Lory State Park in August 2026 offering 5k, 10k and 12k courses with varied elevation. Series and per-race registration, post-race food and drinks, and end-of-series awards for top points scorers.

A running event at Carter Park in Breckenridge on August 12, 2026 offering short and long course entries in Adult, Youth and Non-Binary Open divisions with published entry fees.

A multi-distance race at Boulder Reservoir, Colorado, featuring a mostly dirt and trail course with about 200 feet of elevation gain and views of the reservoir and the Rocky Mountains.

Trail ultras from Roxborough State Park to Sharptail Trailhead featuring sustained climbs, technical singletrack, and a long runnable finish, with full aid support and an emphasis on land stewardship.

Experience the trails of Cheyenne Mountain State Park with three race distances ranging from a 5K walk to a 25K mountain challenge. This chip timed fundraiser supports park conservation through scenic and high elevation courses.

Westminster Trail Race at Standley Lake in Westminster, Colorado offers five dirt-trail distances from 5K to 50K with lake and Front Range views on out-and-back and Y routes.

Summit Grays and Torreys Peaks in this 8.8 mile Colorado endurance event. Participants must carry a 20lb dry load while tackling 4,101 feet of elevation gain.

A 10 km out and back in Leadville on August 16, 2026 that uses the opening and closing sections of the LT100 Run course. Aid at the turnaround and liquids on the Courthouse lawn, minimum age 12, general registration open.

Experience a hilly 5k trail race through the scenic Lory State Park. Enjoy a low key atmosphere followed by pizza, beverages, and a vintage race shirt in this midweek summer series event.

A four‑race midweek trail series at Lory State Park in August 2026 offering 5k, 10k and 12k courses with varied elevation. Series and per-race registration, post-race food and drinks, and end-of-series awards for top points scorers.

A 60 hour endurance challenge at Snow Mountain Ranch where runners repeat a 10 mile trail loop to reach milestone distances. Entry includes lodging, meals, training and recovery services.

A high-elevation, approximately 100-mile out-and-back ultramarathon in Leadville, Colorado, featuring Hope Pass and over 15,000 feet of climbing. The event uses an entry lottery and includes 11 aid stations, pacer allowance, and buckle awar..

Experience a high altitude trail run through the Rocky Mountains on 100 percent unpaved roads and trails. This dog friendly event in Fraser supports children facing cancer through the Shining Stars Foundation.

A trail race at Staunton State Park offering 26.3 mile and 13.1 mile courses over mostly singletrack with significant elevation gain, well marked trails, capped fields, and fully stocked aid stations.

Experience a fast and flat 12k trail race through the scenic Valley Trails of Lory State Park. Enjoy a low key atmosphere followed by pizza, beverages, and a vintage race shirt in Bellvue.