Trail Running calendar near Granby 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.

A four race trail series at the Argo trails in Idaho Springs, Colorado, held June to September 2026. Each event is about 5 miles with 785 feet of gain on non technical, runnable trails with visual finish timing.

Looped trail races at Barr Lake State Park in Brighton Colorado offer 50K, 30K, half marathon, 15K and 5K options on dirt surfaces with lake and Front Range views. Aid station coverage varies by distance.

Experience the single track trails of historic Howelsen Hill in Steamboat Springs. Choose between the 4 mile or 8 mile distance as you run through scenic aspen groves and vibrant wildflowers to benefit the Knights of Columbus.

Prepare for the Race Across the Sky at this three day training camp in Leadville. Run key sections of the 100 mile course alongside veteran guides and attend educational panels on nutrition and biomechanics.

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.

Trail 10K and 5K races in Beaver Creek on June 20, 2026 with a kids run, aid stations, post race food and age group awards. The event benefits the Vail Valley Charitable Fund.

Summer Vibes Bike Rally & Run Festival in Lyons Colorado pairs gravel and road bike rallies with trail running, relays, live music, recovery pools and camping for a combined endurance and festival weekend.

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.

A community-focused trail festival in Gold Hill, Colorado, with 28K, 12K, 5K and Kids 1K races, a shuttle from Boulder, and proceeds supporting wildfire preparedness for the town.

Experience a high altitude outdoor festival in the highest incorporated town in North America featuring trail running mountain biking and duathlon. Enjoy a weekend of racing and meadow camping surrounded by 14,000 foot peaks.

Experience the beauty of Lory State Park at this USATF sanctioned trail race featuring 5K, 5 mile, and 10 mile distances. Enjoy scenic foothill views, plant-based post-race pancakes, and unique wooden medals.

On June 27, 2026 in Leadville, Colorado two trail races run to Mosquito Pass at 13,185 feet. The marathon is 26.4 miles and the Heavy Half is 15.46 miles, with multiple on-course aid stations and a Leadville Trail 100 qualifying allocation.

An overnight endurance event in Highlands Ranch, Colorado offering solo and team relay options on a 10.3 miles dirt loop beneath a full moon. Two aid stations, drop bags, medical support and a headlamp requirement are provided.

A lap-based backyard ultra around Lake Estes in Estes Park, Colorado. Each lap is 4.252 miles on a paved bike trail with 150 feet of gain, repeated hourly until one runner remains; aid, a custom hat, and athlete village space are provided.

Experience trail running at the historic Howelsen Hill ski area in Steamboat Springs. Choose between 5k and 10k distances as part of an exciting multi sport race weekend in the Colorado mountains.

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.

A 10K trail race at Alderfer Ranch that loops through Elk Meadow Open Space Park via Pioneer Trail, with a downhill along Highway 74 and a wooded section by the mountain. Registration is not yet available and the race is cup free with no ai..

A 5K run/walk in Winter Park, Colorado following the Fraser River Trail from Gondola Plaza to the Rendezvous Event Center, with an after party featuring refreshments, awards and prize giveaways.

A July 4 5 kilometer run or walk in downtown Leadville, with downtown bib pickup and an Independence Day parade afterward. Adult entry is $25 and youth 17 and under may enter for free, with proceeds supporting local youth athletics.