Trail Running Calendar United States 2025-2026

The Southern Arizona Triple 50 is a unique ultra running challenge comprising three 50-mile races held in southern Arizona: the Colossal Vail 50 in Vail, the AZT Oracle Rumble 50 in Oracle, and the Old Pueblo 50 in Sonoita. All races take place on sections of the Arizona National Scenic Trail, offer..

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 Crooked Creek Ultra Trail Race takes place at Camp Crooked Creek within the Harry S. Frazier Scout Reservation in Shepherdsville, Kentucky, set in scenic Bourbon Country. The event features a challenging 12.7-mile loop with over 2,300 feet of elevation gain per lap through 1,000 acres of hardwoo..

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

Ollie's Ultra is a USATF certified endurance running event held at Santa Fe Park in Chanute, Kansas. It features multiple timed races including 24, 12, 9, 6, and 3-hour options, where participants run loops of a 2.022-mile soft chat trail on the former Safari Golf Course. The event offers a fully st..

The Festivus 100 Miler Trail Run, held in Middleburg, Florida, offers multiple race distances including 100 miles, 50 miles, 35 miles, 14 miles, and 7 miles. This event caters to a wide range of trail runners, from ultra-distance athletes to those seeking shorter challenges. The race takes place on..

The Dirty Spokes Off The Grid Fort Yargo Cannonball Run is a trail running event held at Fort Yargo State Park in Winder, Georgia. Participants can choose between two distances: 8.75 miles or 3.10 miles. The race features a mix of smooth and technical trail surfaces, making it suitable for both expe..

The Q50 Races Santa on Trails 5k is a festive trail running event held at Fontainebleau State Park in Mandeville, Louisiana. Scheduled for December 6, 2025, this 5-kilometer race features flat, scenic trails along the park's natural beauty. Participants are encouraged to run or walk in Santa suits a..

The Death Valley Trail Marathon, held annually in Death Valley National Park, California, offers marathon and half marathon distances on a spectacular dirt course along Westside Road in the Badwater Basin. The marathon consists of two out-and-back loops, while the half marathon is a single out-and-b..

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 Tower Tag Challenge is a trail running event held at the iconic Sleeping Giant State Park in Hamden, Connecticut. The race features a simple yet demanding course on the Tower Trail, a mostly smooth carriage road that ascends over 600 feet in 1.5 miles to the park's Observation Tower, offering st..

The Mosaic Trail Race is a family-friendly trail running event held in December at Indian Mound Ranch, a historic ranch near Liberty Hill, Texas, just outside Austin. The race offers multiple distances including 50K, marathon (26.2 mi), half marathon (13.1 mi), 15K, 10K, 5K, and a 1-mile youth run f..

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 sections, and scenic views along Green, Black, and Blue tr..

The All Things Race P4v13 is a running event held in Corbin, Kentucky, at 578 Singing Hills Road. Scheduled for December 6, 2025, it features a 5K road run/walk, a 10K trail race, and a kids fun run. The race honors the memory of Greg Deaton, a beloved pastor and camp director, and supports the Laur..

The Jackson County 50-50 Ultramarathon is a challenging trail running event held at Pyoca Camp and Retreat Center in Brownstown, Indiana. It offers multiple distances including a 10-mile run, 50k, 100k, and a 100k relay for teams of 2 to 6 runners. The course features rugged terrain with steep topog..

The Colossal Vail 50/50 is a trail running event held near Vail, Arizona, featuring ultra distances of 50 miles, 55K, and half-marathon options, including day and night courses. Starting and finishing at Colossal Cave Mountain Park, the race showcases scenic high desert terrain along the Arizona Tra..

The Sawmill Trail Runs is an annual trail running event held at Staunton State Park in Pine, Colorado, approximately 40 miles southwest of Denver. The race offers three distance options: 8-Mile, 16-Mile, and 50k, with a combined runner capacity of 250. The course features scenic and challenging terr..

The Hitchcock Experience Endurance Runs take place at the Hitchcock Nature Center in Honey Creek, Iowa. Scheduled for December 6-7, 2025, the event offers multiple distances including a half marathon (13.1 miles), 50 miles, 101K (a combination of the half marathon plus 50 miles), and a 100-mile ultr..

The Loup Garou Trail Run, held in Ville Platte, Louisiana, offers a uniquely Louisiana trail running experience with distances of 100, 60, 40, and 20 miles. The course features single-track trails winding through cypress swamps, hardwood forests, and piney woods, including long bridges that showcase..

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..