Trail Running calendar near Minturn 2026-2027

A backyard ultra on the paved Lake Estes trail where runners complete 4.252 mile loops each hour until one runner finishes a loop alone. The event records yards for DNFs and offers on-site aid and athlete village space.

SBT TRL in Steamboat Springs offers trail races at Howelsen Hill as part of the SBT GRVL weekend. Participants can choose a 5 km or 10 km distance with registration open from February 10 to June 27, 2026.

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 three race trail series at Sunlight Mountain Resort near Glenwood Springs, Colorado. It offers 5K, 10K, and a half marathon with specified elevation gains, limited aid station support, and defined registration windows.

A 10 kilometer trail race at Alderfer Ranch in Evergreen Colorado on June 27 2026. The event includes shuttles from Wulf Rec Center, vendor tents, on-site food and water refill stations while the course is supported by course marshals.

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 Fourth of July 5K in downtown Leadville, CO, held above 10,000 feet. Proceeds support local youth athletics and youth entries are free.

A historic uphill trail race on Vail Mountain covering about 12.2K (7.6 miles) with 2,128 ft of gain, three aid stations, on-course hydration and a Mid-Vail finish with awards by age group.

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 Crested Butte’s oldest trail challenge with running and mountain biking events. Choose between a 25 km loop or the classic 15 km sprint in this high elevation mountain competition.

A high-altitude, approximately 50-mile out-and-back trail run around Leadville with about 7,500 feet of elevation gain, marked aid stations, drop-bag service, shuttle-required parking, and LT100 qualification opportunities.

Experience the STRS Horseshoe Gulch Grind in Breckenridge with short and long course options. This trail event offers categories for adults and youth starting from the Blair Witch Trailhead.

Experience a high altitude mountain race through the Sawatch range of the Colorado Rockies. This 101 mile loop features historical ghost towns and alpine passes with over 23000 feet of elevation gain.

A trail race on Spring Creek near the gazebo in Steamboat Springs offering a 9.5 mile loop with steep early climbs and a 5K out and back. The long course has one aid station and is cupless.

Experience the mountain trails of Aspen Snowmass with three distinct race distances. Runners can choose between a 50K trek across four mountains a 25K trail run or a 10K course starting from the Elk Camp Gondola.

High-altitude trail races on Vail Mountain offering 10K and 5K courses that start near Gondola One, feature singletrack and gravel sections, on-course aid stations, post-race refreshments, and age-group awards.

Repeating 2 km out and back laps on the Thumb Open Space trail in Estes Park. Participants collect a poker chip at each turnaround and the most chips wins during a sunup to sundown timeframe; 35 spots and a $100 entry fee.

A three-stage trail race in Colorado offering Full Pint (51 miles) and Half Pint (35 miles) options, with campsite support, meals, showers and therapy services; registration is limited to 500 runners.

High-altitude trail ultras in State Forest State Park offering 100 km and 60 km options across alpine ridges, varied technical terrain and staffed aid stations, with limited entries and significant elevation gain.

A mountain fundraiser in Conifer, Colorado on July 25, 2026 featuring a 10K, a USATF certified 5K, and a 2 mile fun run, followed by a street festival with live music, vendors, and family activities.