Trail Running calendar near Byers 2025-2026

The Big Brrrrito event offers participants the choice of running 5 miles, 10 miles, or 15 miles through the scenic trails of Chatfield State Park in Colorado. Organized by the Roxborough Running Club, this running event is set to take place on January 25, 2025. Registration for the event will close ..

The Running Up for Air - Staunton Rocks is an endurance running event taking place at Staunton State Park in Pine, Colorado, on February 14-15, 2025. Participants can choose from various challenges, including 3, 6, 12, and 24-hour races, running a marked 7.1-mile loop with significant elevation gain..

The Stories Trail Runs, part of the Human Potential Running Series, is an exciting winter trail running event set in Colorado Springs, CO, at Cheyenne Mountain State Park. Scheduled for February 15-16, 2025, the event features a variety of races, including a 10k, Half Marathon, and timed ultra event..

Lucky Lyons is a festive running event held in Lyons, Colorado, featuring 5K and 10K races to kick off St. Patrick's Day celebrations. Participants are encouraged to wear their best green attire as they navigate scenic courses that include paved, gravel, and dirt paths.The event supports the Lyons C..

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

The Rattler Trail Race, taking place in Colorado Springs, features three race distances: 50K, 25K, and 10K. Set in the scenic Palmer Park, participants can enjoy stunning views of the city and Pikes Peak while navigating the challenging trails. This event highlights the beauty of the local trail sys..

The Great Western Trail Race is a running event taking place in Severance, Colorado, celebrating the region's newest trail that connects Windsor, Severance, and Eaton. Participants can choose from various distances, including a 5k, 10k, half marathon, and a Kids Fun Run. The event promises a festive..

The Rock Hawk Trail Races, part of the Bear Chase Race Series, take place on the scenic trails of Castle Rock’s Miller Park and Ridgeline Trail systems. Scheduled for April 19, 2025, this event features multiple race distances: 50K, 25K, 10K, and 5K, catering to both novice and experienced trail run..

The Cheyenne Mountain Trail Race, taking place in Colorado Springs, CO, features multiple race distances including 50K, 25K, 7 Miler, and 4 Miler. Set against the stunning backdrop of Cheyenne Mountain State Park, participants will navigate scenic trails that include grassy meadows and wooded areas...

Take 5 in the Garden is an exciting running event held in the scenic Garden of the Gods, Colorado Springs, CO. Participants can choose from a 5K, a 5 Mile course, or a new 5 Mile Trail Race, all set against the backdrop of stunning natural beauty. The event features closed roads, ensuring a safe and..

The Falcon 50 is an annual race series held on May 3, 2025, at the USAF Academy in Colorado Springs, CO. Participants can choose from five race options: 50 Miler, Marathon, Military Heavy, Half Marathon, and Military Half-Heavy. The scenic course features challenging terrain primarily on dirt trails..

The Greenland Trail Races, held annually in May at the Greenland Open Space in Larkspur, Colorado, features four race distances: 4 Mile, 8 Mile, 25K, and the 50K ultramarathon, which is recognized as Colorado's fastest 50K. Participants enjoy a scenic course with views of Pikes Peak, running on soft..

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 primarily off-trail using a map and compass. With ..

The Mountain Ridge Trail Race, taking place on May 10, 2025, in Highlands Ranch, Colorado, offers a variety of distances for trail running enthusiasts, including a 21-mile, half marathon, 10K, and 5K. Celebrating its 11th year, the race features scenic dirt and single-track trails with manageable el..

The Quad Rock 50 and 25 Mile Trail Races, organized by Gnar Runners, will take place on May 10, 2025, in Lory State Park and Horsetooth Mountain Park, near Fort Collins, Colorado. This challenging event features two distances: a 50-mile race with over 11,000 feet of elevation gain and a 25-mile race..

The Ram Party Trail Runs, scheduled for May 17, 2025, in Colorado Springs, CO, offers a variety of race distances including 55 Mile, 60K, 50K, 24K, and 15K. Set against the stunning backdrop of Rampart Reservoir and Pikes Peak, participants can enjoy breathtaking views while challenging themselves o..

The Endure Trail Runs, organized by the Human Potential Running Series, takes place at Mueller State Park in Divide, Colorado. This unique event features a variety of races, including a 10k, Half Marathon, and timed challenges of 12 and 24 hours. Participants in the 12-Hour and 24-Hour events will d..

The Weld Your Mettle Running Festival is a four-day event taking place in Eaton, Colorado, featuring a variety of running challenges suitable for all participants. Events include solo and relay formats ranging from 3 to 24 hours, as well as a 7K run and ruck. The festival offers a vibrant atmosphere..

The Ol' College Try 24 Hour Ultra is Denver's inaugural 24-hour ultra race, organized by Rise Again Running Events in collaboration with Tall Tales Ranch. Scheduled for May 24-25, 2025, at Auraria Campus, this event invites runners of all abilities to challenge themselves and achieve personal bests ..

The North Fork 50 Mile/50K is an ultramarathon set in the scenic Colorado mountains near Denver, taking place on May 31, 2025. This event features a challenging course that is entirely on soft surfaces, primarily singletrack trails, with some double track sections. Runners will experience diverse la..