Trail Running calendar near Denver 2026-2027

Bear Chase Trail Race is a two day endurance festival at Bear Creek Lake Park with distances from 5K to 100K on scenic single track trails. Ultras race Saturday, shorter events Sunday, and proceeds help Lakewood open space and trails.

Run Wildcat Mountain near Littleton with 10 mile, 10K and kids races on rolling dirt trails and wide mountain views. Finishers get a dry fit shirt, medal, pancake breakfast and post race beers.

On Oct 3, 2026 Above the Clouds Ultra in Woodland Park, Colorado offers 50K and 10K trail routes with sweeping Pikes Peak views. Tackle rugged climbs and scenic singletrack for a true mountain run.

Run scenic single track trails through lodgepole pine, aspen groves and red rock views at the Indian Creek Trail Runs in Sedalia, Colorado. Choose from 50 mile, 55k, 15 mile or 5 mile distances with stocked aid stations and finisher medals.

Take on technical single track trails, rolling hills and rocky bluffs at Palmer Park with 50K, 25K, 10K and 5K options. Enjoy city and Pikes Peak views while testing your trail skills at this Aravaipa Running event.

Run scenic singletrack between Horsetooth Mountain Park and Devil's Backbone at the Blue Sky Trail Marathon and Half. Rugged climbs, rocky trails and full aid stations promise a rewarding mountain challenge.

Run single track trails with Denver skyline views at the Great Trailhead Foot Race, offering 5 and 10 mile courses at Bear Creek Lake Park. Registration includes a tee, park entry, post run party, a 10 mile finisher mug and a shoe drive.

Tackle scenic single track trails at Bear Creek Lake Park in Lakewood CO with 5 km, 15 km, a 5 plus 15 double and a kids 1 km. Enjoy race swag and a pancake breakfast amid varied terrain and rolling hills.

Nov 7, 2026 in Lone Tree CO, tackle a scenic single loop 13.1 mile course on dirt and singletrack through Highlands Ranch Backcountry Wilderness. Aid stations, tech shirt, finisher medal, pancake breakfast, post race beer and cash prizes.

Join the Louisville Trail Race on November 14, 2026 in Louisville, Colorado, with half marathon, 10K and 5K trail distances over scenic dirt paths and rolling climbs. This cupless race offers timed courses for all levels.

The Colorado Cold Rush Ultra will take place in West Colorado Springs on Saturday 21 November 2026. You can run between 10 and 50 kilometers.

The Sawmill Trail Runs will take place in Pine Junction Area on Saturday 5 December 2026. You can run between 8 and 50 kilometers.