Trail Running calendar near Idaho Springs 2026-2027

Test your strength at this exclusive obstacle course event in Peyton featuring a three lap 3K race and a one mile kids run. Navigate rigs, rope climbs, and heavy carries in a small field of only fifty athletes.

Experience the peaks of Colorado through a series of four half marathons and a 25 km trail race. Run through iconic locations like Estes Park and Nederland while supporting local youth programs.

A community-focused trail festival in Gold Hill, Colorado, with 28K, 12K, 5K and Kids 1K races, a shuttle from Boulder, and proceeds supporting wildfire preparedness for the town.

Experience the beauty of Lory State Park at this USATF sanctioned trail race featuring 5K, 5 mile, and 10 mile distances. Enjoy scenic foothill views, plant-based post-race pancakes, and unique wooden medals.

Experience the highest trail marathon in the USA reaching 13185 feet at Mosquito Pass. Choose between a 26.4 mile marathon or a 15.46 mile heavy half through Leadvilles historic mining district and rugged high altitude terrain.

An overnight endurance event in Highlands Ranch, Colorado offering solo and team relay options on a 10.3 miles dirt loop beneath a full moon. Two aid stations, drop bags, medical support and a headlamp requirement are provided.

A lap-based backyard ultra around Lake Estes in Estes Park, Colorado. Each lap is 4.252 miles on a paved bike trail with 150 feet of gain, repeated hourly until one runner remains; aid, a custom hat, and athlete village space are provided.

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.

Kick off Independence Day with a 5k run/walk in Winter Park, Colorado. The scenic route travels along the Fraser River Trail and finishes at the Rendezvous Event Center for a post-race party.

A July 4 5 kilometer run or walk in downtown Leadville, with downtown bib pickup and an Independence Day parade afterward. Adult entry is $25 and youth 17 and under may enter for free, with proceeds supporting local youth athletics.

Celebrate 50 years of history at the Vail HillClimb, a 12.2 km mountain race gaining over 2,000 feet of elevation. Run from Vail Village to the scenic Mid-Vail finish line for incredible views and commemorative awards.

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 an endurance challenge through historic Colorado mining districts with the Silver Rush 50 Run. Choose between 50 mile, 15 mile, or junior 5k distances while competing for a qualifying spot in the Leadville Trail 100.

Experience a high altitude 100 mile loop through the Colorado Rockies featuring 23,300 feet of gain. Run across alpine passes and historic ghost towns on the Continental Divide and Colorado Trails within a 37 hour limit.

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.

Experience high altitude trail running at 10,000 feet on the scenic Vail Mountain in Colorado. Choose between a 5K or 10K course featuring mountain views, wildflowers, and a unique gondola ride to the starting line.

Experience a historic 12.6 mile mountain race on Pikes Peak. Runners ascend from Manitou Springs to Barr Camp at 10200 feet before descending the iconic Barr Trail in this classic Colorado summer event.

A three day, fully supported trail running stage race in Leadville, Colorado that crosses the Continental Divide between Hope Pass and Red Cliff. Offers a 51 mile Full Pint and a 35 mile Half Pint with a field limited to 500 runners.

Experience a true mountain ultra through the rugged alpine peaks and lakes of Northern Colorado. Navigate technical trails and high ridges across 60km or 100km courses in a wild wilderness setting.

Experience the mountain trails of Colorado Springs at the Pikes Peak Ultra. Choose from four race distances that take you through high elevation terrain including Cheyenne Canon and the summit of Mt. Rosa.