Trail Running Calendar Colorado 2024-2025

The Emerald Mountain Epic is a premier single track race experience taking place on August 3rd & 4th, 2024. The event offers mountain bike races on August 3rd, including solo and duo relay options, and trail running races on August 4th, with full marathon, half marathon, and 10K distances available...

The Dynafit Berry Picker Trail Run is set to take place on August 3, 2024, at the base of Gondola One on Vail Mountain, CO, starting at 8 a.m. The race covers 4.6 miles of uphill running with an average grade of 14 percent, challenging runners on singletrack and doubletrack terrain. Participants wil..

The Kennebec Mountain Run is a challenging 15-mile trail run through the La Plata Mountains of southwest Colorado. This rugged course features 3,100 feet of elevation gain and reaches a peak of 12,200 feet at Kennebec Pass, offering stunning views of the Animas River and Dolores River valleys. Proce..

The Lory Summer Trail Series offers a fun series of shorter midweek trail races in Bellvue, CO, starting with the Eltuck Valley 5k on August 6. The series includes races of varying distances from 5k to 12k, with different elevation gains. The races aim to provide both new and experienced trail runne..

The Lory Summer Trail Series will take place in Bellvue on Thursday 8 August 2024. You can run between 5 and 12 kilometers.

The High Five 100 is a challenging 100-mile trail run in Lake City, CO, created by local ultra runners. Participants must navigate on foot to 22 specified locations, including proof points and checkpoints, with only 6 designated aid areas. The route covers between 90-105 miles with over 40,000 ft of..

The Run the Rockies Trail 5k, 10k, and Half Marathon takes place in Frisco, CO, offering runners a scenic course through the Frisco Peninsula trails with stunning views of Lake Dillon and the Ten Mile Range. Participants can enjoy single track and dirt road trails, making it suitable for first-time ..

The Turkey Springs Showdown offers a 10K and Half Marathon trail race starting and finishing at the Turkey Springs Guard Station in Pagosa Springs, CO. The race courses include single tracks like Gopher Trail, Aspen Run Trail, Newt Jack Trail, Catamount Trail, and Park Avenue Trail, featuring runnab..

The Dirt Circus - Boulder will take place in Table Mesa on Saturday 10 August 2024. You can run between 0 and 0 kilometers.

The Transrockies Run will take place in Buena Vista from Monday 12 August 2024 to Saturday 17 August 2024. You can run 120 miles.

The Summer Trail Series at Lory State Park offers a fun and challenging opportunity for trail runners of all levels. With races ranging from 5k to 12k, participants can enjoy the beautiful mountain scenery while testing their skills on varying terrains. The series aims to provide newer trail runners..

The Lory Summer Trail Series will take place in Bellvue on Thursday 15 August 2024. You can run between 5 and 12 kilometers.

The San Juan Softie is a 100-mile ultra run in southwest Colorado through the stunning San Juan mountains, featuring an average elevation of nearly 10,000ft and over 20,000ft of vertical gain. The race is scheduled to start on Friday, August 16th at 6:00 AM and finish on Saturday, August 17th at 8:0..

The Leadville Trail 100 Run is a historic ultramarathon that takes place in the Rocky Mountains, starting at 10,200 feet and climbing to 12,600 feet. The course is a challenging out-and-back route with steep climbs, high-altitude passes, and technical terrain totaling over 18,000 feet of elevation g..

The Cheyenne Mountain Ruck Or Run will take place in Colorado Springs on Saturday 17 August 2024. You can run between 5 and 25 kilometers.

The Dynafit Arrowhead Half Marathon & 5K is a challenging yet stunning trail run taking place on Beaver Creek Mountain. The half marathon features over 3,000 feet of elevation gain, while the 5K has only 300 feet of elevation gain, making it suitable for all ages and abilities. The race offers beaut..

Participants can join the Escape 5K Trail Run at YMCA Camp Jackson, Rye, CO, for a challenging 5K run/hike with over 1,000 feet in elevation gain. The event starts at 9:00 am, and participants are advised to bring water, sunscreen, extra clothing, and a hat due to unpredictable mountain weather. Pri..

Participants can join the Summer Trail Series at Lory State Park in Bellvue, CO on August 6, 13, 20 & 27 for a series of shorter midweek trail races ranging from 5k to 12k. The third race features a steep climb and descent on the Homestead, Well Gulch, Kimmons loop. The event aims to provide both ne..

The Lory Summer Trail Series will take place in Bellvue on Thursday 22 August 2024. You can run between 5 and 12 kilometers.

The Telluride Mountain Run is a challenging and technical race in the San Juan Mountains above Telluride, Colorado, offering three routes of 40, 24, and 13 miles. Runners will traverse old mining roads, singletrack, and alpine tundra over mountain passes, exposed ridgelines, and high summits. The ra..