Trail Running calendar near Louisville 2026-2027

Experience a scenic run in Allenspark with majestic views of Mount Meeker and the Continental Divide. Choose between a competitive 5k or a casual 2k walk and bring your dog along for the race and an amateur dog show.

A multi-day ultra-running festival in Loveland, CO with timed and distance events on a 2-mile loop, camping in the park, limited RV permits, continuous aid station service, and a 200-runner cap.

Experience a high altitude mountain run at Arapahoe Basin covering 9.4 miles and 2,211 feet of vertical gain. Runners summit Little Lenawee peak and finish with live music and professional photos at Mountain Goat Plaza.

Join the community for a 5K run or walk on a brand new dirt course at the North Arvada Middle School Athletic Complex. Support local high school racers before taking on this off road route yourself.

Test your endurance at Staunton State Park with weighted rucking options ranging from 6.5 to 21.5 miles. Choose your load and tackle the Colorado trails to support the Special Forces Foundation.

A multi-event weekend in Longmont Colorado on September 11 and 12 offering distances from 5K to a 100 mile race on a flat 1.05 mile loop, with finisher awards, aid station support, and commemorative race apparel.

Experience a historic Colorado mountain tradition in Nederland with trail and road races. Choose between a half marathon, 10K, or a dog friendly 5K while winding through scenic trails and old town streets.

Experience high altitude trail running at the Snow Mountain Ranch Trail Running Festival in Granby. Choose from distances ranging from 5 km to 50 km on scenic dirt and grass paths reaching nearly 10000 feet in elevation.

Experience the scenic trails of Lory State Park in this 13.5 mile mountain race featuring technical singletrack and stunning Rocky Mountain views. Enjoy a well supported course followed by a celebratory pancake breakfast at the finish.

High altitude trail races in Empire, Colorado on September 12, 2026 offering 50K and 22K point to point courses on dirt single track with substantial elevation gain. The 50K requires prior ultra experience.

Experience the historic landscapes of Meadow Mountain in Minturn with a technical trail race through alpine meadows and singletrack. Choose between 5K and 11K routes featuring beautiful views of the Gore Range.

Trail races on North Table Mountain in Golden, CO on Sep 19, 2026, with 10 Mile and 5 Mile courses. Organized by BeyondHome, the event supports families moving from homelessness to self-sufficiency.

Follow the historic Barr Trail on a 13.3 mile journey from Manitou Springs to the 14,115 foot summit of Pikes Peak. Experience a 7,800 foot vertical climb through Colorado forests and alpine terrain in this high altitude event.

Experience a 26.2 mile mountain run from Manitou Springs to the summit of Pikes Peak and back. This historic event features over 7800 feet of elevation gain and a 10 hour time limit.

Experience the wild spaces of Northern Colorado with a weekend of trail races ranging from a half marathon to a 50 mile ultra through scenic forests and scout camp trails. Stay on site with available camping and community meals.

Experience a rugged trail adventure through the Colorado wilderness in Estes Park. Choose between a 50k run or bike and a heavy half marathon while supporting the local high school mountain bike team.

Experience a stunning point to point trail race from Vail to Minturn. Run through golden aspen groves and high alpine terrain with distances of 26K and 14K available for up to 250 participants.

Experience the autumn colors of Colorado during this scenic 5K trail run. Participants race through Breckenridge's mountain trails before finishing at a historic downtown festival featuring traditional music and food.

Test your endurance at this mountain trail event featuring 25 km and 50 km distances. Join a community dedicated to environmental conservation and public land protection on the beautiful trails of Colorado.

Experience the scenic trails of Bear Creek Lake Park at this multi day endurance festival in Lakewood. With distances ranging from a 5K to a 100K ultra marathon, the event features fast non technical dirt paths and panoramic views.