Trail Running calendar near Bellvue 2024-2025

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 in Estes Park, CO, featuring an 8-hour ascent on the Thumb Open Space trail. Participants will complete an out-and-back course, collecting poker chips at the turnaround to determine their placing. Unique patches are awarded for reach..

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..

Run The Ranch is an exciting trail running event taking place at Sylvan Dale Guest Ranch in Loveland, Colorado, on April 4-5, 2025. Participants can choose from six different race distances, including a 5K, 10K, and various timed trail runs ranging from 4 to 12 hours, with options for solo runners a..

The Mountain Ridge Trail Race, celebrating its 11th year, offers a variety of distances including a 5K, 10K, Half Marathon, and 21-Mile race, all set in the scenic Highlands Ranch, Colorado. Participants will enjoy 100% dirt and single-track trails with manageable elevation gains, showcasing the stu..

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 Weld Your Mettle Running Festival is a vibrant event taking place from May 23 to May 25, 2025, in Eaton, Colorado. It features a variety of running challenges, including timed relays (3, 6, 9, 12, and 24 hours), a 7K Ruck, and a 1 Mile Kids Fun Run. Participants can enjoy a supportive community ..

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

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 ..

The Barr Lake Trail Race, held in Brighton, Colorado, is a celebrated running event now in its sixth year, featuring a variety of distances including 50K, 30K, Half Marathon, 15K, and 5K. Known for its flat and fast course with minimal elevation gain, the race offers stunning views of Barr Lake and ..

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 without a predetermined end, making it a true ..

The Timberview Trail Run is an exciting annual trail race held at Lory State Park in Colorado, featuring three distances: a 10-mile, a 5-mile, and a 5K. This event caters to athletes of all levels and ages, offering a scenic course with stunning views of Horsetooth Reservoir and the surrounding foot..

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 Never Summer 100km and 60km races, organized by Gnar Runners, will take place in July 2025 in the stunning Colorado Rockies. This challenging mountain race features a course that traverses diverse terrains, including high alpine ridges, meadows, and boulder fields, with significant elevation cha..

The Elevation Run/Walk is a community-focused event taking place in Conifer, Colorado, on July 26, 2025. This annual race features multiple distances, including 10 miles, 5 miles, and a 2-mile fun run, showcasing the scenic trails and neighborhoods of Conifer at an average elevation of 8,200 feet. P..

The Boulder Rez Marathon is a scenic running event held at the Boulder Reservoir in Boulder, Colorado. Participants can choose from various distances, including a marathon, half marathon, 3/4 marathon, and 10K, all set along dirt roads and trails with stunning views of the reservoir and Rocky Mounta..

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..