Trail Running calendar near Erie 2026-2027

Experience a scenic loop course through the Devil’s Backbone Open Space in Loveland. This manual timed trail run features natural terrain and includes a commemorative hat for all participants.

The Barr Lake Trail Race offers a flat, fast course on dirt trails around the scenic lake. With distances from 5K to 50K, runners can enjoy views of the Colorado Front Range. The event is in its seventh year and features a cupless initiativ..

Experience up to three miles of messy fun at the Colorado National Speedway. Navigate obstacles by crawling wading and sliding through the mud with friends and family during this unique event in Dacono.

Test your strength at this exclusive obstacle course event in Peyton featuring a three lap 3K race and a one mile kids run. Navigate rigs, rope climbs, and heavy carries in a small field of only fifty athletes.

Experience the peaks of Colorado through a series of four half marathons and a 25 km trail race. Run through iconic locations like Estes Park and Nederland while supporting local youth programs.

The Timberview Trail Run returns for its seventh year at Lory State Park. Choose from scenic 5K, 5-mile, or 10-mile trail courses with views of Horsetooth Reservoir. Participants receive a shirt, finisher medal, and post-race refreshments.

Run under the full moon in Colorado. This overnight event offers solo ultramarathon distances and team relays on rolling dirt trails. A unique 100-mile challenge with a cash prize is available for 3-person teams.

This Backyard Ultra takes place on a paved trail around scenic Lake Estes in Colorado. Runners complete a 4.252-mile loop every hour until only one remains. The event starts in the afternoon and includes custom swag for all participants.

Experience a half marathon in the mountains of Nederland Colorado. This event features a significant elevation gain of 4226 feet with the summit always in view.

Kick off Independence Day with a 5k run/walk in Winter Park, Colorado. The scenic route travels along the Fraser River Trail and finishes at the Rendezvous Event Center for a post-race party.

Celebrate 50 years of history at the Vail HillClimb, a 12.2 km mountain race gaining over 2,000 feet of elevation. Run from Vail Village to the scenic Mid-Vail finish line for incredible views and commemorative awards.

Experience high altitude trail running through historic Colorado ghost towns and mines at over 10000 feet. Choose from distances ranging from 10 miles to 100 miles in the scenic South Park Valley.

Experience high altitude trail running at 10,000 feet on the scenic Vail Mountain in Colorado. Choose between a 5K or 10K course featuring mountain views, wildflowers, and a unique gondola ride to the starting line.

Experience a true mountain ultra through the rugged alpine peaks and lakes of Northern Colorado. Navigate technical trails and high ridges across 60km or 100km courses in a wild wilderness setting.

Experience a historic Colorado tradition where runners and burros compete together. Navigate mountain trails and high altitude passes while carrying traditional mining gear in this unique world championship event.

Course and Terrain The Summit 200 is a 200-mile single-loop ultramarathon in Summit County, Colorado. The non-repetitive course utilizes hiking trails, 4WD roads, and recreation paths, with the majority being single-track trail and infreque..

Experience an epic 200 mile point to point team relay from Fort Collins to Steamboat Springs. Run through the heart of the Rocky Mountains and over two scenic mountain passes in this ultimate Colorado road race.

Experience high elevation trail running in the mountains of Fairplay Colorado. This event offers three distances ranging from a half marathon on forest roads to technical ultramarathons through remote wilderness terrain.

Experience high alpine racing through the scenic singletrack and forest trails of Winter Park Colorado. Join a point to point mountain adventure with distances ranging from a 10K loop to a technical 50K ultra.

Experience a challenging 4.3 mile uphill climb on Vail Mountain featuring over 2,000 feet of elevation gain. This scenic singletrack race finishes at Mid Vail with stunning views and post run refreshments for all participants.