Trail Running calendar near Estes Park 2025-2026

The Sunset Trail Running Festival, taking place in Gold Hill, Colorado, features a variety of trail races including a 28K, 12K, 5K, and a Kids 1K. This event, organized by The Boulder Watershed Collective and T.E.A.M Boulder, aims to raise funds for wildfire preparation and community resilience init..

The Timberview Trail Run is a scenic trail running event held at Lory State Park in Colorado, featuring three race distances: 5K, 5 Mile, and 10 Mile. Scheduled for June 28, 2025, this event caters to athletes of all levels, including beginners and families, with a beginner-friendly 5K route. Partic..

The Vail Hillclimb will take place in Vail on Saturday 5 July 2025.

Chase the Moon is a unique 12-hour endurance run held in the Highlands Ranch Backcountry trail system, offering participants the chance to run solo or as part of a relay team under the full moon. The event features various race options, including solo runs of 12, 6, and 3 hours, as well as a 50K dis..

The Silverheels Trail Runs, part of the Human Potential Running Series, is an annual event taking place in Como, Colorado, featuring a variety of challenging distances including 10-Mile, 19-Mile, 60k, 50-Mile, 100k, and 100-Mile races. Set at an average elevation of over 10,000 feet, the course offe..

The 10K & 5K @ 10,000 Feet will take place in Vail on Saturday 19 July 2025. You can run between 5 and 10 kilometers.

The Spring Creek Memorial Trail Run is a scenic running event held in Steamboat Springs, Colorado, featuring a 9.5-mile loop and a 5K course. The race takes place on the picturesque Spring Creek trail, surrounded by wildflowers and Aspen trees, and includes challenging terrain with significant eleva..

The Never Summer 100km and 60km races will take place from July 25-27, 2025, in the stunning landscapes of State Forest State Park, Colorado. This challenging mountain race features a variety of terrains, including high alpine ridges, meadows, and rocky trails, with participants experiencing breatht..

The Summit 200 is an extraordinary 200-mile mountain race set in Summit County, Colorado, featuring a challenging loop that showcases stunning natural beauty. Runners will navigate a mix of hiking trails, forest roads, and paved sections, with elevations ranging from over 9,000 to nearly 13,000 feet..

The Berry Picker Trail Run will take place in Vail on Saturday 2 August 2025.

The Boulder Rez Marathon is a scenic running event held at the Boulder Reservoir in Colorado, featuring a flat course primarily on dirt roads and trails. Participants can choose from various distances, including a marathon, half marathon, 3/4 marathon, and 10K. The race offers stunning views of the..

The Emerald Mountain Epic is a premier two-day endurance event held in Steamboat Springs, featuring both mountain biking and trail running races. Known for its challenging courses, the event includes 90% singletrack trails with significant elevation gains, attracting participants of all skill levels..

The Lory Summer Trail Series, taking place from August 5 to August 26, 2025, offers a series of midweek trail races designed for both novice and experienced runners. Participants can choose from distances of 5K, 10K, and 12K, with courses that vary in elevation gain. The event aims to create a fun a..

The Eltuck Valley 5K is part of a series of midweek trail races held at Lory State Park in Bellvue, Colorado. Scheduled for August 5, 2025, this event is designed to cater to both novice and experienced runners, offering a flat and fast course ideal for those looking to improve their speed. Particip..

The Run The Rockies Trail Race offers a scenic running experience through the Frisco Peninsula trails, featuring a 5k, 10k, and half marathon. Participants can enjoy stunning views of Dillon Reservoir and the Ten Mile Range, making it an ideal course for both beginners and seasoned runners. The even..

The Holy COW Trail Stampede is an exciting running event held in Westminster, Colorado, featuring a 10-mile race and 5K/10K options. Participants can enjoy a fun and festive atmosphere while supporting the charity partner, Growing Home, which focuses on breaking the cycle of poverty for families in..

The Med Bow Rail Marathon and Half Marathon, organized by the Friends of the Medicine Bow Rail Trail, will take place on August 9, 2025. This event features a marathon course that spans the scenic Medicine Bow Rail Trail, with an average elevation of 8,926 feet, and a half-marathon that includes loo..

Dirt Circus - Boulder is a vibrant community running event scheduled for August 9, 2025, in Boulder, Colorado. Organized by UltraSignup, this festival celebrates local races, run clubs, and businesses, fostering camaraderie among trail running enthusiasts. Participants can enjoy a social run with op..

The Into the Hills Eltuck 10K is part of a series of midweek trail races held at Lory State Park in Bellvue, Colorado. Scheduled for August 12, 2025, this event is designed to cater to both novice and experienced trail runners, offering a challenging course with significant elevation gain and stunni..

The Into the Hills Eltuck 5K is part of a series of midweek trail races held at Lory State Park in Bellvue, Colorado. Scheduled for August 19, 2025, this event features a challenging course with a steep climb and descent, making it suitable for both novice and experienced trail runners. Participants..