Trail Running Calendar United States 2025-2026

The Baby Backyard Ultra is a community-focused running event held in Maple Grove, Minnesota, featuring a unique format that allows participants to run a series of 5K loops every hour until reaching 50K or choosing their own distance. Open to runners, walkers, and kids, the event promotes fun, camara..

Pyro's Push It Up Trail Run is a scenic trail running event held in New Castle, Colorado, set in the beautiful Flat Tops area. The race offers three distance options: a family-friendly 3.5K, a more challenging 7.7K, and a demanding 13K Double Down course. Participants run along mountain trails that..

The Steel City 12 Hour Run & Ruck is a unique endurance event taking place in Middletown, Ohio, designed to challenge participants to run or ruck for 12 hours. Scheduled for August 9-10, 2025, the event features a flat, 1.52-mile loop course around Smith Park. Participants can choose to compete in v..

The Run the Rockies Trail Race is a scenic event featuring a 5k, 10k, and half marathon through the trails of Frisco Peninsula, offering stunning views of Dillon Reservoir and the Ten Mile Range. The courses include single track and dirt roads, starting and finishing at the Frisco Nordic Center. Par..

The Med Bow Rail Marathon & Half Marathon, held in the scenic Medicine Bow National Forest near Laramie, Wyoming, offers runners a unique high-elevation challenge. The marathon covers the entire 21-mile Medicine Bow Rail Trail, averaging 8,926 feet in elevation, crossing briefly into Colorado before..

The Running Wild at Wildwood 2.5 Mile Trail Run is an exciting outdoor event taking place at Wildwood State Park in Wading River. Scheduled for August 9, 2025, this trail run invites participants of all skill levels to enjoy the scenic beauty of the park while engaging in a healthy and fun activity...

The 2025 Haulin Aspen is a premier trail running event taking place in Bend, Oregon, featuring a full marathon, half marathon, and a 6.5-mile course known as the "Half As." Celebrating its 21st year, this event showcases the stunning trails of the Deschutes National Forest, offering participants a c..

The H9 Dragon is a trail running event held at Vogel State Park in Blairsville, Georgia, featuring a 50-mile race and a marathon along the scenic Duncan Ridge. Organized by the H9 Trail Club, participation requires club membership, emphasizing adherence to Forest Service regulations. The event offer..

The PRR Summer Series - Warnick 10k is a scenic trail running event held on Moscow Mountain in Idaho. The course is a roughly 6-mile loop starting and finishing at the Warnick Road parking area, featuring over 800 feet of elevation gain with varied terrain including climbs and descents. Runners trav..

The Nifty Fifty is a trail running event held in Juneau, Alaska, featuring 50K, 25K, and 10K races. All races start and finish near the end of Basin Road by the Perseverance Trail. The courses traverse scenic trails with significant elevation gain, including over 5,000 feet for the 50K.The 50K cours..

Capt'n Karl's Trail Series at Reveille Peak Ranch is a premier running event taking place in Burnet, Texas, on August 9-10, 2025. This series features a variety of race distances, including a 60K, 30K, 20K, 10K, a Sunset 5K, and a Youth 1-Mile Trail Run for children aged 12 and under. Set in a stunn..

The Slate Valley Scramble, organized by Slate Valley Trails, is a trail running event taking place on August 9, 2025. Participants can choose between an 8k and a half marathon, both set on scenic singletrack and double-track trails in Vermont's Slate Valley. A Kid's Fun Run is also available for chi..

The Copper City 24 Hour Race, held in Three Forks, Montana, is an endurance running event featuring 12- and 24-hour options. Participants run on a scenic, relatively flat one-mile double-track loop that offers views of multiple mountain ranges, distant city lights, and passes by an old copper smelte..

The Ute 100 is a premier ultramarathon held in the scenic La Sal Mountains of Utah, featuring a challenging 100-mile course with an average elevation above 8,700 feet and approximately 21,000 feet of elevation gain and loss. A 50-mile option offers a single loop of the 100-mile course, providing the..

Bear Creek is a trail running event held in Lafayette, California, featuring a half marathon, 10K, and 5K distances. The races take place on challenging courses with many hills through the scenic Briones Regional Park, offering a rewarding experience for trail runners rather than a flat, fast course..

The Eastern States 100 is a challenging 103-mile trail race set in the scenic Pennsylvania Wilds, specifically around the Pine Creek watershed. This event features a demanding course with over 20,000 feet of elevation gain, showcasing some of the most rugged and beautiful trails in the region, inclu..

Larrabee Lakes is a trail running event held in Bellingham, Washington, starting and finishing at Fairhaven Park. The race offers three distances: 12K, 25K, and 50K, featuring lush green forests, picturesque lakes, and unique geology with narrow ridgelines shaped by the Chuckanut Formation. The cour..

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..

Race the Reserve is a scenic running event held in Coupeville on Whidbey Island, Washington. Scheduled for August 9, 2025, it offers multiple race distances including a 5K, 10K, half marathon, and a virtual race option. The course traverses the picturesque Ebey’s Landing National Historical Reserve,..

Hobby Trails to You! is an exciting running event scheduled for August 9, 2025, in Winston-Salem, NC. Participants can choose between a 5K and a 10K trail race, both featuring a challenging single-track course that begins with a cross-country start. The event promises ample parking, shaded areas, an..