Trail Running calendar near Keystone 2025-2026

Run the Ranch is an annual trail running event held at the scenic Sylvan Dale Guest Ranch in Loveland, Colorado. The race offers a variety of distances including 5K, 10K, and timed trail runs of 4, 6, and 12 hours, with options for solo run..

Experience singletrack through Palmer Park's sandstone bluffs and rock formations with panoramic views of Colorado Springs and Pikes Peak. Trail options range from 50K to 5K, offering technical terrain with minimal elevation gain for all ab..

Niwot’s Challenge is an invitation only, navigation driven ultra near Sedalia CO that emphasizes self reliance on rugged off trail terrain. Choose roughly 24, 50, or 100 mile routes with massive elevation gain and strict no GPS rules for a..

Run scenic dirt trails in Greenland Open Space near Pikes Peak with 50K, 25K, 8 Mile and 4 Mile options, highlighted by the 2026 RRCA National 50K Championship. Expect sweeping views, solid race swag and a lively trail day atmosphere.

Run through Garden of the Gods on May 2, 2026 with roads closed to traffic for a safe, scenic outing. Choose road or trail routes that pass iconic rock formations and offer stunning views of Pikes Peak.

Tackle spring singletrack and rocky descents at the Valkyrie Trail Race in Cheyenne Mountain State Park, a women focused trail event. Choose from 4 Miler to 50K and soak up big mountain views and rugged fun.

Ram Party Trail Runs : May 16, 2026 Ram Party Trail Runs takes place in the Colorado Springs / Woodland Park area with race activity centered around Rampart Reservoir. Distances offered on Saturday are: 55 Mile 60K 50K 24K 15K The event l..

Run rugged single and double track trails at Mueller State Park with distances from 10k to marathon and a playful 12 hour loop where colored balls pick your next lap. One main aid station, scenic views, and on site camping.

North Fork 50 : Event details The North Fork 50 Mile/50K is scheduled for Saturday, May 30, 2026, in Buffalo Creek, Colorado. The start and finish are at the Buffalo Creek Clubhouse, 18050 S Buffalo Creek Rd, Buffalo Creek, CO 80470. Distan..

Enjoy alpine single track through meadows and aspen groves at Granby Ranch Resort with distances from 6 Mile to 50k and a unique Elevation Challenge scored by total climb rather than distance. Small field and stocked aid stations make for a..

Great Divide Ultra in Divide, Colorado on June 6-7, 2026 offers looped 25k to 100 mile trail races in Mueller State Park plus the Dark Divide Night Run. Smooth single and double track winds through rolling meadows with stunning Pikes Peak v..

Run the Crazy Legs 10k+ at Devils Backbone Open Space in Loveland, Colorado, a scenic singletrack course with aid stations and lively local support. Limited spots remain and this is the event's final year, so grab your spot now.

Ring the Springs : event overview Ring the Springs takes place Saturday, June 20, 2026, at Rock Ledge Ranch in Garden of the Gods, Colorado Springs, CO. The event offers trail distances of: 100K : 64 miles 50K : 32.3 miles 35K : 21.5 miles..

Race in the Clouds - Alma Dirt Festival 2026 The Race in the Clouds - Alma Dirt Festival is a multi-sport outdoor event held in Alma, Colorado in 2026. The festival base is Alma Cemetery Meadow, at about 10,600 ft elevation and roughly half..

Event overview The Silverheels Trail Runs take place July 10-11, 2026, with start/finish operations based at the Como Roundhouse in Como, CO. Distances offered include: 100-Mile 100k 50-Mile 60k 19-Mile 10-Mile Runner capacity is limited:..

Barr Trail Mountain Race is a 12.6-mile summer mountain running event along Pikes Peak. The course starts at Cog Railway Station in Manitou Springs (6,570 ft), ascends Barr Trail to Barr Camp at 10,200 ft, then turns, descends, and finishes..

TransRockies Run is a three-day, two-distance trail-running stage race across the Colorado Rockies. The route traverses the continental divide between Hope Pass and Red Cliff, Colorado, totaling 51 miles for The Full Pint (about 9,635 ft of..

Event overview The Never Summer races take place in July 2026 around Gould, Colorado, mostly inside State Forest State Park between the Never Summer Mountains and the Medicine Bow Mountains. Distances offered: 100 km (65.7 miles) 60 km (39..

Pikes Peak Ultra invites trail runners to Colorado Springs with 20K to 50 mile courses, and the 50K and 50 mile routes summit Mt Rosa. Rugged granite trails, big elevation and epic mountain views await.

The Summit 200 is a 200 mile single loop ultramarathon around Summit County Colorado, climbing above 9,000 feet through alpine trails. With 40,000 feet of gain and just 100 spots, this high altitude test rewards experienced 100 mile finishe..