Rock Hawk Trail Races

Niwot's Challenge is a demanding ultramarathon held in Colorado's Front Range, inspired by the Barkley Marathons. This grassroots event, limited to 40 participants, emphasizes navigation skills as runners traverse mostly off-trail terrain using only a map and compass. The challenge includes various..

The Mountain Ridge Trail Race, held in Highlands Ranch, Colorado, offers scenic trail running options for all levels, including 5K, 10K, half marathon, and 21-mile courses. Set on the Douglas County East-West Regional Trail, the race features rolling hills, dirt and single-track trails, and manageab..

The Ol' College Try 24 Hour Ultra is Denver's inaugural 24-hour ultra race, organized by Rise Again Running Events in collaboration with Tall Tales Ranch. Scheduled for May 24-25, 2025, at Auraria Campus, this event invites runners of all abilities to challenge themselves in a non-stop race, fosteri..

The Reuter-Hess Trail Incline is a challenging 10k trail race held in Parker, Colorado, featuring about 600 feet of elevation gain. The course begins with a lollipop loop that includes a steep incline with widely spaced stairs, making running difficult. After the incline, runners navigate rolling te..

The North Fork 50 Mile/50K is a premier ultramarathon held in Buffalo Creek, Colorado, about 50 miles southwest of Denver. The event features two distances: a 50-mile race with 6,425 feet of elevation gain and a 50K with 3,670 feet of climb. The course is 100% soft surface, primarily singletrack tra..

Chase the Moon is a unique overnight ultramarathon held in Highlands Ranch, Colorado, featuring a 12-hour solo and team relay format (3- or 5-person teams) on the scenic Highlands Ranch Backcountry trail system. Runners experience stunning views of the metro area and Front Range under the full moon'..