Trail Running calendar near Castle Rock 2026-2027

Event Overview The Great Divide Ultra is a trail running festival held in early June in Divide, Colorado. The event takes place on the rolling meadows of Mueller State Park. The courses are 100% smooth single and double-track trail. Distanc..

Aiden's Adventure 5k is a community run/walk honoring a young child's memory. The event features a flat dirt trail 5k, a kids' dash, and family-friendly activities like carnival games and a butterfly release. All proceeds support local char..

Run the trails at Devil's Backbone Open Space in this classic 10k+ loop course. The event features old-school stick timing and finishes with an awards ceremony at a local brewery. This race series will conclude after the 2028 edition.

The Barr Lake Trail Race offers a flat, fast course on dirt trails around the scenic lake. With distances from 5K to 50K, runners can enjoy views of the Colorado Front Range. The event is in its seventh year and features a cupless initiativ..

Experience a historic Colorado Springs race through towering sandstone formations and landmarks like Balanced Rock. Choose between road and trail distances for a scenic run in Garden of the Gods Park.

Prepare for the Race Across the Sky at this three day training camp in Leadville. Run key sections of the 100 mile course alongside veteran guides and attend educational panels on nutrition and biomechanics.

Event Details Ring the Springs is a trail running event taking place on June 20, 2026, in Colorado Springs, Colorado. The event offers three distance options: a 100K, a 50K, and a 35K. All races start and finish at Rock Ledge Ranch, located..

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.

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.

Celebrate Independence Day with a festive 5k along Pueblo's Arkansas River Trail. This family-friendly event features costume prizes, finisher medals, and post-race activities. Proceeds support the local running community and charitable cau..

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.

Celebrate the Fourth of July at over 10,000 feet in North America’s highest city. This 5K run and walk through downtown Leadville supports local youth athletics and begins just before the annual holiday parade.

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 historic mountain run on Pikes Peak climbing to an altitude of 10,200 feet. This 12.6 mile trail race features a 3,630 foot vertical gain through the scenic landscapes of Manitou Springs.

The TransRockies Run is a three-day stage race through the Colorado Rockies, from Hope Pass to Red Cliff. Choose between the 51-mile Full Pint or the 35-mile Half Pint. Runners finish each day at a fully supported camp with meals, showers,..

The Pikes Peak Ultra on July 25, 2026, features trail races from 20K to 50 miles in Colorado Springs. Starting at Bear Creek Park, the course includes views of Pikes Peak and a summit of Mt. Rosa for longer distances. Organized by Mad Moose..

Experience a historic Colorado tradition where runners and burros compete together. Navigate mountain trails and high altitude passes while carrying traditional mining gear in this unique world championship event.

Course and Terrain The Summit 200 is a 200-mile single-loop ultramarathon in Summit County, Colorado. The non-repetitive course utilizes hiking trails, 4WD roads, and recreation paths, with the majority being single-track trail and infreque..

Experience high elevation trail running in the mountains of Fairplay Colorado. This event offers three distances ranging from a half marathon on forest roads to technical ultramarathons through remote wilderness terrain.