Trail Running calendar near Pine Junction Area 2026-2027

A 24 hour loop endurance run in Palmer Lake, CO on a 0.82 mile course at 7,240 feet, with distance awards and guaranteed buckles for early 100 mile finishers.

A two-day trail and bike event in Estes Park featuring 31-mile bike and run options, a 15-mile heavy half, and a 62-mile duathlon, with rugged trails, significant climbs, and aid stations supporting competitors.

A point to point trail race from Vail to Minturn with 26K and 14K options across Vail Mountain, high alpine singletrack, staffed aid stations and postrace awards.

A *5K* trail run on Town of Breckenridge Trails that finishes at Blue River Plaza on Main Street during Breckenridge Oktoberfest. Field limited to 300 runners; first 250 registrants receive a long-sleeve technical tee and 21+ entrants get a..

A six hour trail challenge of repeating a 5K loop each hour; finish all six to earn the OUTLAST medal and a place on the national leaderboard.

A high alpine 50k in Nathrop, Colorado, featuring Colorado Trail singletrack, about 7,000 ft of climb and panoramic Sawatch Range views.

A fall trail event in Buena Vista, Colorado on September 27, 2026 offering a 14K trail race with over 500 feet of elevation gain and a 5K along the Arkansas River. Both races start and finish at Vendor Village near the Eddyline Beer Garden.

The 4th annual Greenland Open Space Pack Burro Race in Larkspur, Colorado offers 8 Mile and 3 Mile pack burro divisions. Teams must register a burro partner, follow animal welfare rules, and the field is limited to 75 participants.

A weekend of looped trail races at Bear Creek Lake Park near Lakewood CO offering 100K, 50 Mile, 50K, half marathon, 10K and 5K on mostly singletrack dirt.

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.

A Woodland Park trail event featuring 50k and 10k options on singletrack and forest roads with views of Pikes Peak, stocked aid stations, and crew access for the 50k.

Multiple race distances run near the Royal Gorge Bridge, including a 5K road run, an 8 mile trail race and a 13.1 mile half marathon, plus a free kids Dinosaur Dash and a virtual race option.

Trail races on Philip S. Miller Park ridgelines include a family adventure run plus 5K, 10K, half marathon and 50K with chip timing and aid stations.

A scenic 5K through Estes Park during Elk Fest with shuttle transport from the Visitor Center and a finish at Performance Park.

OUTLAST Denver is a six hour trail challenge where runners complete a 5K every hour, earn patches or a medal for laps, and can place on a national leaderboard.

A four-race trail series across city parks with increasing distances, chip timing, and cumulative awards for runners who complete all four events.

Multiple trail distances at Staunton State Park on October 10, 2026, from a steep 5K to a 50K ultramarathon, plus a 25K FishSlappers division that includes catching a trout; proceeds support conservation organizations.

The The Daisy 104 will take place in Castle Rock from Saturday 10 October 2026 to Sunday 11 October 2026. You can run between 18 and 104 miles.

A mountain backyard ultra in Estes Park with 4.167-mile loops every hour on trails beside Rocky Mountain National Park; last runner standing wins $1,000.

Run the Rocks at Red Rocks Park in Morrison, CO offers a 5k and a 1.3-mile family course, raising funds for lung disease education, advocacy and research in Colorado.