Trail Running calendar near Breckenridge 2025-2026

The Thumbs Up Vertical Challenge is an exciting running event taking place in Estes Park, CO, featuring an 8-hour ascent on the Thumb Open Space trail. Participants will navigate a 1km out-and-back course with a 540ft elevation gain, collecting poker chips at the turnaround to determine their standi..

The Sawmill Trail Runs, part of the Human Potential Running Series, is an annual trail running event held at Staunton State Park in Pine, Colorado. The event features three distance options: a 50k, a 16-mile, and an 8-mile race, catering to various skill levels. The park's stunning landscapes, rangi..

The USCSA Cross Country Ski Racing Festival, hosted by Colorado Mesa University, is an exciting event taking place at Snow Mountain Ranch Nordic Center in Granby, Colorado. Scheduled for January 24-25, 2026, the festival features competitive races for collegiate and junior athletes, including 15K an..

The Stories Trail Runs is an annual winter trail running event held in Colorado Springs, CO, featuring a stunning backdrop of Cheyenne Mountain and Pike’s Peak. Participants can choose from various timed events, including 15-hour, 30-hour, and 6-hour challenges, as well as shorter distances like a 1..

The Winter's End Snowshoe Races, held at Granby Ranch Resort in Granby, Colorado, is an exciting winter running event that welcomes participants of all skill levels. Scheduled for March 7, 2026, the event features multiple race distances, including a marathon, 14-mile, 7-mile, and 5k, all set agains..