Trail Running calendar near Eaton 2024-2025

The Reuter-Hess Trail Incline is a running event taking place in Parker, CO, featuring a challenging 10k course and a 1-mile kids race. The course includes a lollipop loop with a mix of flat, rolling, and rocky terrain, culminating in a steep incline. Participants will experience approximately 600 f..

The Mountain Peacock 50k is an exciting ultra running event taking place in Golden, Colorado, where participants will conquer four peaks in one day. This inaugural event emphasizes a no-frills approach, focusing on the essence of trail running without expensive fees or elaborate aid stations. Runner..

The Thumbs Up Vertical Challenge is an exciting running event held at the Thumb Open Space in Estes Park, CO. Participants will embark on an 8-hour ascent along a 1km out-and-back trail, gaining 540 feet in elevation. Runners must collect poker chips at the turnaround point to track their progress, ..

Santa's Summit Slam is a versatile running event that takes place in various weather conditions, featuring a 5-mile course that includes 30% gravel roads and 70% single-track trails. Participants can expect a unique experience, whether running on dry trails, navigating sloshy paths with traction spi..

The Twin Mountain Trudge is a challenging winter running event held in Laramie, WY, featuring two race options: a single loop 'Classic' of approximately 10.2 miles and a double loop 'Marathon' of about 20.5 miles. Participants will navigate hilly terrain, deep snow, and ice, with significant elevati..

The Winter's End Snowshoe Races, hosted at Granby Ranch Resort in Granby, CO, is an exciting winter sports event designed for runners of all skill levels. Scheduled for March 8, 2025, the event features multiple race distances, including a marathon, 16-mile, 8-mile, and a 2-mile fun run. Participant..

Niwot's Challenge is a challenging ultramarathon held annually in Colorado's Front Range, designed for experienced runners. Modeled after the Barkley Marathons, this grassroots event features a secretive course that requires participants to navigate using a map and compass, with limited aid availabl..

Samson's Revenge is a trail running event held at the YMCA of the Rockies in Estes Park, Colorado, honoring the legacy of Samson, a famous elk poached in 1995. Participants can choose from three distances: 10K, 27K, and 55K, featuring a challenging course with significant elevation gain, particularl..

The Ol' College Try 24 Hour Ultra is Denver's inaugural 24-hour ultra race, taking place at Auraria Campus. Organized by Rise Again Running Events in collaboration with Tall Tales Ranch, this event invites runners of all abilities to challenge themselves and achieve personal milestones. Participants..

The Weld Your Mettle Running Event is a unique ultra-running festival taking place in Eaton, Colorado, featuring a variety of timed events from May 24 to May 25, 2025. Participants can choose from solo events lasting 3, 6, 9, 12, or 24 hours, or join relay teams of up to 12 members. Additional activ..

The North Fork 50 Mile/50K is an ultramarathon set in the scenic Colorado mountains near Denver. This event features a challenging course that is entirely on soft surfaces, primarily consisting of singletrack trails, with some sections of double track road. Runners will experience diverse landscapes..

The Crazy Legs 10k+ Trail Run is an exciting running event taking place at Devil’s Backbone Open Space in Loveland, Colorado, on June 1, 2025. This trail run features a challenging course designed to provide a fun experience for participants. Runners will navigate through various trails, with water ..

Estes Park's Backyard Ultra is a unique ultra-running event set against the stunning backdrop of Lake Estes, Colorado. Participants must complete a distance of 4.252 miles within one hour, every hour, until only one runner remains. This format continues indefinitely, with the last runner standing be..

The Timberview Trail Run is an exciting annual event held at Lory State Park in Colorado, featuring three race distances: a 10-mile, a 5-mile, and a 5K trail run. Scheduled for June 28, 2025, this event welcomes participants of all ages and skill levels, offering a scenic course with stunning views ..

Chase the Moon is an exciting overnight running event held in the Highlands Ranch Backcountry trail system, featuring a 12-hour solo ultramarathon and team relays. Participants can choose to run solo or form teams of 3 or 5. New this year, shorter distances such as 5 miles, 10 miles, 25K, and 50K ar..

The Lory Summer Trail Series, scheduled for August 2025, features a series of midweek trail races at Lory State Park in Fort Collins, Colorado. Participants can choose from distances of 5K, 10K, and 12K, designed to cater to both novice and experienced trail runners. The event aims to create a fun a..

The Holy COW Trail Stampede is an exciting running event held in Westminster, Colorado, featuring a 10-mile race and a 5k/10k option. 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 Front Range Ultra Dayze will take place in Loveland from Thursday 28 August 2025 to Monday 1 September 2025.

The Red Feather Trail Jamboree is a three-day trail running event held in September 2025 at the Ben Delatour Scout Ranch in Red Feather Lakes, Colorado. Participants can choose from three race distances: 50 miles, 50K, and a half marathon, each featuring scenic trails with varying elevations and ter..

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..