Trail Running calendar near Leadville 2024-2025

The Summit 200 is an extraordinary 200-mile mountain race set in Summit County, Colorado, featuring a challenging loop that showcases stunning hiking trails, forest roads, and scenic views. Runners will experience significant elevation changes, with the lowest point above 9,000 feet and sections rea..

The Sheep Mountain Ultras, part of the Human Potential Running Series, is a challenging trail running event held annually in Fairplay, Colorado. The 10th edition will feature a 50-mile race, a 50k, and a half marathon, all set against the stunning backdrop of the South Park Valley. With an average e..

The TransRockies Run is an exhilarating six-day stage race set in the stunning Colorado Rockies, covering a total distance of 120 miles. Scheduled for August 4-9, 2025, this event promises an unforgettable adventure for participants, fostering a unique community spirit among runners. The race is des..

The Leadville Trail 100 Mile Run, known as the "Race Across the Sky," is a prestigious ultramarathon held annually in Leadville, Colorado. Established in 1983, this grueling event challenges participants with a 100-mile out-and-back course that features extreme elevation changes, including a peak at..

The Staunton Rocks will take place in Pine Junction Area on Sunday 24 August 2025. You can run between 13 and 26 miles.

The Grand Traverse Mountain Run is a challenging 40-mile ultra marathon that takes place from Crested Butte to Aspen, Colorado. Following the route of the Grand Traverse Backcountry Ski race, participants face over 6,000 feet of elevation gain while traversing the scenic Elk Mountains. This event se..

The Cirque Series - Arapahoe Basin is an exhilarating mountain running event set in Colorado, featuring a challenging 9.2-mile course with a vertical gain of 2,411 feet. Participants start at an elevation of 10,780 feet and navigate through scenic trails, including the new Half Moon Vista and Argent..

The Pikes Peak Ascent and Marathon is a renowned running event held annually in Manitou Springs, Colorado. Established in 1956, the Pikes Peak Marathon is the oldest continuously held marathon in the United States, featuring a challenging course that ascends to the summit of Pikes Peak at 14,115 fee..

The Crested Butte Ultra is a premier trail running event held in Crested Butte, Colorado, featuring three race distances: 50 miles, 55K, and 35K. Set against the stunning backdrop of Gunnison National Forest, participants can enjoy breathtaking views, vibrant wildflowers, and the beautiful autumn co..

The 24 Hours of Palmer Lake is an endurance running event set in the scenic mountains of Palmer Lake, Colorado, at an elevation of 7,240 feet. Participants will tackle a 0.82-mile loop course for 24 hours, pushing their mental and physical limits in a community-driven atmosphere. The event includes ..

The Bear Chase Trail Race is an exciting endurance festival held at Bear Creek Lake Park in Lakewood, CO, featuring a variety of race distances including 100K, 50 Mile, 50K, Half Marathon, 10K, and 5K. This event is ideal for both first-time ultramarathoners and seasoned trail runners, offering a mi..

The Indian Creek Trail Runs, part of the Human Potential Running Series, is a celebrated annual event known as the "Fall Classic." This race features a variety of distances, including 50-mile, 55k, 15-mile, and 5-mile options, all set against the stunning backdrop of Colorado's Front Range. Particip..