Trail Running Calendar Colorado 2024-2025

The Greenland Trail Races offer a variety of distances including a 50K, 25K, 8 Mile, and 4 Mile race on May 4, 2024, at Greenland Open Space in Larkspur, CO. Participants will enjoy a scenic course passing through grasslands, ponds, oak hills, and pine forests with views of Pikes Peak. The event pro..

The Collegiate Peaks Trail Run in Buena Vista, Colorado offers two race distances - 25 miles and 50 miles. Established in 1991, this challenging trail run tests participants' physical and mental stamina. The course follows single-track and jeep trails along the historic Midland Railroad and other sc..

The "Take 5 in the Garden" trail run takes place in the Garden of the Gods in Colorado Springs, CO. Participants can choose between a 5k road race or a 5 Mile trail race. The park will be closed to traffic, allowing runners to enjoy the beautiful scenery without interruptions. The event offers packe..

The Adventure Fest at 18 Road in Fruita, CO is a weekend event celebrating the rugged desert and adventure sports of the area. It features the Fruita Trail Half, the Sarlacc Attack 50K, and Zippity 22K mountain bike races, as well as The Dirty Edge Gravel event. The weekend also includes free events..

The Quad Rock 50 & 25 Mile Trail Races take place on the trails and hills west of Fort Collins in Lory State Park and Horsetooth Mountain Park, offering a challenging and scenic course. The loop provides stunning views of the Fort Collins skyline and the Rocky Mountains, with participants ascending ..

The Tava Canyons Trail Runs event has been cancelled. The trail run was set to take place in Colorado Springs, CO, offering a marathon and half marathon distance. The event promised to explore the beautiful and challenging trails in the Pikes Peak region. Unfortunately, no further details are availa..

The Valkyrie Trail Race in Colorado Springs, CO offers a women-only trail/ultra event in Cheyenne Mountain State Park with stunning city views and diverse eco-system. Participants can choose from various distances including 50K, Marathon, 30K, 1/2 Marathon, 8 Miler, and 4 Miler. The event website pr..

The Fruita Trail Half Marathon is a challenging and fun 13.8-mile loop on beautiful singletrack in Fruita, CO, featuring short steep climbs and descents with stunning views of nearby buttes and mesas. The race is part of the Adventure Fest weekend, offering a great way to connect with like-minded ra..

The Ram Party Trail Runs offer a variety of race options for all levels, set around the stunning Rampart Reservoir in Woodland Park, Colorado, with views of Pikes Peak and the front range. The event includes distances ranging from 15k to 60k on Saturday and 16k to 33k on Sunday. The race starts at B..

The Samson's Revenge trail run takes place on May 18, 2024, in Estes Park, CO, offering race distances of 55k, 27k, and 10k. The course features a 10k loop with 1,200ft of gain per loop, including the challenging Bible Point ascent. Runners will traverse fast single track trails with a significant s..

The Endure Trail Runs @ Mueller State Park offers a unique 12-hour and 24-hour timed event where runners pull colored balls to determine the loop they'll run. The 24-hour event requires participants to endure the full 24 hours, while the 12-hour event allows runners to participate for any duration w..

The Dynafit Boneyard Boogie is the first trail running race of the season in the 2024 Vail Trail Running Series. It offers a 13K and a new 5K option, with the 13K course featuring an elevation gain of approximately 1,400 feet and reaching a maximum elevation of 7,650 feet. The race starts and ends a..

The Mt Sopris Run-off will take place in Carbondale on Sunday 19 May 2024. You can run between 10 and 25 kilometers.

The Spirit Trail Run will take place in Buena Vista on Sunday 26 May 2024. You can run between 8 and 26 miles.

The Leadville Turquoise Lake 20K trail run takes place in Leadville, CO, offering stunning mountain views as participants run around Turquoise Lake. The course includes 6.5 miles of hilly paved road and 5.5 miles of single track dirt trail. The event starts at 9:00 AM at Matchless Boat Ramp, with bi..

The Mountain Ridge Trail Race will take place in Highlands Ranch on Saturday 1 June 2024. You can run between 5 and 21 miles.

Mace’s Hideout 100 is a challenging 101-mile trail run taking place in the Wet Mountains of Colorado. The route offers diverse ecosystems, from wet forests with towering firs to arid landscapes with pinon pines and cacti. With a total elevation gain of 22,500 ft, runners will experience a high point..

The North Fork 50 Mile/50K trail run takes place in the Buffalo Creek Recreation Area in the Pike National Forest, Colorado. The race offers a challenging course with varying altitudes between 6,700 to 8,600 feet for the 50 Mile and 50K distances. Participants can enjoy beautiful pine forests, uniqu..

The Great Divide Ultra is a trail running festival taking place in Divide, CO, offering distances of 100 miles, 100k, 50k, and 25k on both Saturday and Sunday. The event showcases the beautiful rolling meadows of Mueller State Park, featuring smooth single/double-track trails with stunning views of ..

The Latino Ultra Nature Adventure will take place in Golden on Saturday 1 June 2024. You can run between 5 and 50 kilometers.