Trail Running Calendar United States 2025-2026

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 Vertigo Night Runs, hosted by Aravaipa Running, take place at White Tank Mountain Regional Park in Waddell, Arizona. This nighttime trail running event offers multiple distances: 6K, 10K, 20K, 31K, and a challenging 52K ultra. The courses run on the 6.5-mile Sonoran Competitive track loop, featu..

The Crystal Springs Ultra Races take place in the scenic Crystal Springs Recreation Area in Wytheville, Virginia, featuring challenging trail runs on the High Rocks Spur and Boundary Trail loops. The event offers three distances: a 12.8-mile half marathon with 2,008 feet of elevation gain, a 25.6-mi..

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 Eddy Trail Races, set in Annandale, Minnesota, features two main events: the Big Eddy 50k and The Eddy Half Marathon. Both races take place in the scenic Stanley Eddy Park Reserve, offering participants a mix of trails, gravel, and paved roads. The event emphasizes community and camaraderie, wit..

The Cougar Mountain Trail Run Series #4 takes place on August 9, 2025, at King County’s Cougar Mountain Regional Wildland Park in Newcastle, Washington, just 15 minutes from Seattle. This event offers three race distances: 5k, 14.5 miles, and a full marathon of 26.2 miles. The course features a vari..

The Last Buckeye Standing Backyard Ultra is a challenging endurance running event held at Alum Creek State Park in Lewis Center, Ohio. Participants run a 4.167-mile loop on the scenic Alum Creek Hiking Trail, featuring grass ski paths and single-track trails with moderate elevation changes. The race..

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 Petal to the Medal Endurance Event is an inclusive trail running challenge held at the Daniel Stowe Conservancy in Belmont, North Carolina. Participants have up to eight hours to complete as many 5K loops as they wish on a scenic trail course. Designed for both experienced trail runners and newc..

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..

Wy’east Trailfest is a premier mountain trail running event held at Mt. Hood Meadows in Oregon, showcasing the alpine terrain of Mt. Hood.The festival features challenging and scenic races over two days, including a 50-mile point-to-point course with 11,100 feet of gain, a 50K, a 28K loop, and a ste..

The Run The Rockies Trail Race in Frisco, Colorado, offers 5k, 10k, and half marathon distances along scenic trails on the Frisco Peninsula. The course features single track and dirt road trails with stunning views of Dillon Reservoir and the Ten Mile Range. Starting and finishing at the Frisco Nord..

The Kat'cina Mosa 100K Mountain Run is a challenging ultramarathon held in the scenic Wasatch Mountains above Provo, Utah. The course covers approximately 100 kilometers with over 15,000 feet of elevation gain and loss, featuring a mix of dirt trails, dirt roads, and paved sections. Runners will exp..

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 3rd Annual Swift Bear Trail Run, scheduled for August 9, 2025, in Hays, Montana, features a variety of running events including a 10 Mile, 20 Mile, and a newly added 50K run. The race takes place during the Hays Powwow, offering a scenic route through Mission Canyon. Participants can expect a mi..

The Angry Owl Ultramarathons is an annual timed running event held in Salem, Oregon, featuring 24-hour, 12-hour, and 6-hour races. Participants run on a roughly one-mile loop through Bush's Pasture Park, with the course comprising dirt, trail, grass, gravel, and asphalt. The event encourages runners..

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..

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 605 Trail Fest is an exciting running event scheduled for August 9, 2025, at Good Earth State Park in Sioux Falls, South Dakota. This festival features a variety of trail races, including an 8-mile race and a 4.5-mile race, catering to runners of different skill levels. Additionally, there is a..

The Mines of Spain Trail Races is a scenic running event held in Dubuque, Iowa, featuring 4-mile, 7-mile, and half marathon distances. The race takes place at the EB Lyons Nature Center and showcases challenging trails through the Mines of Spain park, including dirt single and double tracks, prairie..