Trail Running Calendar United States 2025-2026

The Tower Tag Challenge is a trail running event held at Sleeping Giant State Park in Hamden, Connecticut, known for its stunning views and diverse trails. The race features a straightforward course on the Tower Trail, a smooth carriage road that climbs over 600 feet in 1.5 miles to the park's Obser..

The Calero Trail Run - Winter takes place at Calero County Park in San Jose, California, offering a variety of distances including 50K, trail marathon, 25K, half marathon, 15K, 10K, 5K, mile, and a kids run. The course features challenging single-track trails, hills, dirt paths, oak trees, and panor..

The Capstone 50K is a trail running event held near St. George, Utah, featuring a scenic 10K loop course with expansive desert views. Runners complete multiple loops in alternating directions—known as the "washing machine" style—to cover their race distances: 10K (1 loop), half marathon (2 loops), a..

The Caloosa Fest Ultra, held at Caloosahatchee Regional Park in Alva, Florida, features challenging 50K and 25K trail races on December 6, 2025. The course consists of an 11.1-mile loop with varied terrain, including rolling hills, technical stretches, and scenic views along Green, Black, and Blue t..

Last Chance Ultra is an annual trail running event held in Springfield, Missouri, typically in early December. The race offers multiple distances including a 100-mile, 50-mile, 50K, and a 10-mile run, catering to a wide range of ultrarunners and trail enthusiasts. The event encourages participants t..

The Conquer in Dawsonville, GA, is a challenging backyard ultra trail running event held at Amicalola Falls State Park. Runners tackle a rugged 4.1-mile loop featuring the East Ridge trail, Mountain Laurel trail, and the Appalachian Trail Approach with 1,065 feet of elevation gain and 605 steps. Eac..

The Jackson County 50-50 Ultramarathon, held in Brownstown, Indiana at the Pyoca Camp and Retreat Center, offers challenging trail races including 10-mile, 50k, 100k, and a 100k relay. The course features rugged terrain with steep topography, rewarding runners with scenic vistas around two lakes and..

The Santa's Summit 10k is a scenic and challenging trail run held at Bull Run Marina in Clifton, Virginia. The course follows the Bull Run Occoquan Trail, featuring hilly terrain with a mix of out-and-back and one-way sections. Participants can choose between 5k and 10k distances, both chip-timed, a..

The Bigfoot 50K is a prominent trail running event taking place at Salt Fork State Park Lodge in Kimbolton, Ohio, on December 6-7, 2025. This exciting race features multiple distances, including a 50K, 20-mile, and 10-mile options on Saturday, followed by another 10-mile event on Sunday. The course..

The Ray Miller 50/50 is a trail running event held at Point Mugu State Park in Malibu, California. Scheduled for December 6, 2025, the race offers three distance options: a 50-mile ultra, a 50K, and a 30K. Participants experience scenic coastal and mountainous terrain within the state park, known fo..

The Lake Norman State Park Trail Race is an annual event featuring 30K and 50K trail running races held in Troutman, North Carolina. The course includes smooth, rolling single-track trails with no repeat loops, offering a scenic and challenging experience for runners of all levels. The race provides..

The Cloudland Canyon 50 is a trail running event held at Cloudland Canyon State Park in Rising Fawn, Georgia. It features multiple race distances including a 50-mile, 50K, 25K, and 5-mile run over a scenic course known for its waterfalls, canyon views, and challenging terrain. The 50-mile race inclu..

The Backland is a challenging last-man-standing trail race held near the Texas-Oklahoma border at Walnut Creek Resort & Marina in Gordonville, TX. Participants run a 4.5-mile loop called a "land" and must complete each loop within one hour to continue. The race continues hourly until only one runner..

The McDowell Mountain Frenzy is a trail running event held at McDowell Mountain Regional Park in Fountain Hills, Arizona. It offers multiple race distances including 50 miles, 50K, 25K, 10 miles, and 5 miles, catering to both beginners and experienced runners. The courses feature scenic desert singl..

The Mosaic Trail Race is a December trail running event held at Indian Mound Ranch near Liberty Hill, Texas, just outside Austin. It offers multiple race distances including 50K, marathon (26.2 miles), half marathon (13.1 miles), 15K, 10K, 5K, and youth races of 1 and 2 miles. The course features a..

The Thumbs Up Vertical Challenge is an 8-hour ascent race held in Estes Park, Colorado, on the Thumb Open Space trail. Participants run a 1 km out-and-back course with a steep 540-foot elevation gain per ascent. Runners collect poker chips at the turnaround point to track their completed ascents, wh..

The Caloosa Fest 5K is an exciting running event taking place in Alva, Florida, featuring a scenic trail run. Scheduled for December 6, 2025, this festival includes not only the 5K race but also ultra races of 25K and 50K, along with adventure races. Participants can enjoy various activities, includ..

The Crooked Creek Ultra Trail Race is an exciting running event held at Camp Crooked Creek in Shepherdsville, Kentucky, featuring a challenging 12.7-mile loop with over 2,300 feet of elevation gain. Scheduled for December 6-7, 2025, participants can choose from various distances, including 100 miles..

The Krampuslauf is a unique running event held at the Dartmouth Skiway in Lyme, New Hampshire, featuring 5K, 10K, and a challenging 9-hour race. The course begins at the ski lodge base and includes two distinct 5K loops on Holt’s and Winslow sides of the mountain. The 5K race covers Holt’s side, whi..

The Wildwood Trail Marathon, hosted by Terrain Trail Runners, takes place in Wildwood, Missouri, starting and finishing at LaSalle Springs Middle School. Scheduled for December 6, 2025, the event offers both marathon and half-marathon distances on scenic, mostly single-track trails featuring a mix o..