Trail Running calendar near Lone Tree 2026-2027

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.

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 an obstacle course event in Fort Carson featuring 5 km and 15 km distances. Conquer signature muddy challenges and earn iconic finisher gear while enjoying views of the Rocky Mountains.

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 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.

Experience the scenic HRCA Backcountry Wilderness Area with trail races for the whole family. Enjoy rolling hills and open views followed by a pancake breakfast and finisher medals for all participants in Littleton.

Experience an epic run across the iconic Royal Gorge Bridge in Canon City. Choose between scenic trail half marathons or family friendly road races while supporting a meaningful cause in one of Colorado’s most stunning landscapes.

Explore the scenic Philip S. Miller Park ridgeline trails with distances ranging from a 5K to a 50K ultramarathon. This festival features professional timing, finisher medals, and a family friendly obstacle course.

Experience pure cross country running through four scenic parks in Colorado Springs. This historic trail series features four races of increasing distances across varied terrain for runners aged 15 and older.

Experience the beauty of the Colorado Front Range at the Indian Creek Trail Runs. Choose from four distances on scenic single track trails through pine forests and golden aspen groves near Sedalia.

Experience the urban wilderness of Colorado Springs with trail races ranging from 5K to 50K. Navigate the rocky bluffs and forests of Palmer Park while enjoying views of Pikes Peak.

Experience the scenic redstone hardpack of Northern Colorados Front Range mountains. This event offers marathon and half marathon distances on singletrack trails with moderate elevation and generous time limits.