Trail Running Calendar United States 2025-2026

Greensprings 24 is a 24-hour endurance race held in Williamsburg, Virginia, at the Greensprings venue (3751 John Tyler Hwy). The course is a USATF-certified 2.215-mile loop on crushed gravel, mostly flat and scenic, with a non-technical profile. Runners can complete full loops to reach targets such..

Beware The Bear Trail Races take place at Bear Creek Lake Park in Lakewood, Colorado. Organizers offer four options: a 5K, a 15K, a 5K+15K Double, and a Kids 1K. The mostly dirt courses feature single and double-track trails with short, steep climbs, rollers, and mixed terrain designed as a friendly..

The Fields of Gold 50-Miler and associated races take place at Shaffer Bend Recreation Area in Marble Falls, Texas, showcasing the stunning fall colors of the Texas Hill Country. This event offers multiple distances including a 50-Miler ultra, 50K, marathon, half-marathon, 10K trail race, and a fami..

Shenandoah Zombie Run is a 5K running event held at Camp Shenandoah in Swoope, Virginia. The course weaves through Camp Shenandoah’s hills and woods along Little North Mountain, offering forest trails as runners dodge zombies. Each participant wears a belt with three flags, representing lives to pro..

Piedmont Newnan's Autumn Chase is an annual running event held in Newnan, Georgia, featuring a 10k, 5k trail race, and a 1-mile fun run suitable for all ages. The 14th edition takes place at Newnan Utilities Carl Miller Park, offering a family-friendly atmosphere focused on fitness and community wel..

The Last Cowboy Backyard in O’Neill, Nebraska, is Ultraverse Supplements’ first Backyard Ultra. The course follows the flat, non-technical Cowboy Trail as an out-and-back, starting and finishing at the O’Neill community center. Each lap is 4.17 miles and starts on the hour with all runners beginning..

633 Run takes place in Little Elm, Texas, at Lobo Stadium (1151 East Eldorado Parkway), a family-friendly, community-focused event. The program offers a 1-mile Fun Run, a 5K, and the 633M Run—a 6.33-mile race—along with a 633M Tactical Division. The course runs through Little Elm’s trail system and..

The Battle at Big Creek is an annual trail running event hosted by Dirty Spokes Productions, taking place at Big Creek Trails in Roswell, Georgia. Participants can choose between two distances: 9.4 miles or 5.0 miles, offering a challenging course that includes a mix of single and double track trail..

Oakland Hills Trail Run takes place in Redwood Regional Park, Oakland, CA, offering 35K, Half Marathon, and 10K distances. Runners traverse a forest of coast redwoods and other park communities, with most of the course on technical dirt trails and non-technical fire roads. Elevation gains are substa..

The Crozet Trails Crew 5K/10K Trail Run + Family Fun Run is a fundraiser in Crozet, Virginia hosted by the Crozet Trails Crew. The course starts and ends at Crozet Park, following rustic trails east of the park with roots, rocks, and ruts. Distances include Trail 5K, Trail 10K, and a Family Fun Run;..

Run With Scissors is a running event held in Boston Township, Ohio, featuring a half marathon, full marathon, and double marathon. The race starts at Kendall Lake Lodge and courses through the scenic Cuyahoga Valley National Park. The half marathon follows an out-and-back route, while the full and d..

The Suttle Lake Trailfest, held near Sisters, Oregon, is a scenic endurance running event featuring 24-hour, 12-hour, and 6-hour races on a 3.6-mile loop trail around Suttle Lake. The course offers a well-maintained, non-technical trail with a soft forest floor and gentle elevation gain of 110 feet..

Salt Creek 24 is an all-day, all-night endurance event held at Salt Creek Recreation Area in Port Angeles, Washington. It offers three options: a 24-hour race around a 1.3-mile loop, a Relay Team format, and a Last Runner Standing challenge that summits Striped Peak (~3.75 miles with about 1,000 ft..

Trick or Trail 5k & 1 Mile, presented by Hunter Subaru, returns to Hendersonville, NC, with start and finish in the Historic 7th Avenue District and festival vibes spilling from the nearby Fall Festival at the Hendersonville Farmers Market. Costumes are highly encouraged, with prizes for top categor..

The Sadlers Creek Stumble is a fall trail running and camping event held at Sadlers Creek State Park in Anderson, South Carolina. It offers multiple race distances including a 32-hour 100-mile challenge, marathon, half marathon, and 10k, all set on scenic, looped trails around Lake Hartwell. The cou..

The Aiken Trailblazer Halloween Half Marathon is a festive running event held at Stable View, a scenic equestrian facility in Aiken, South Carolina, featuring over 1,000 acres of rolling hills and forest canopies. The event includes a Half Marathon, 10K, 5K with an optional steeplechase featuring ju..

Canyonlands Ultra is a Moab, Utah trail ultramarathon as part of Mad Moose Events' Run Moab Series. It offers six distances: 100K, 50 Mile, 50K, Marathon, Half Marathon, and 15K. Runners traverse Moab’s trails with sandy washes, technical double-track, and sweeping views of the La Sals, towering san..

Georgia Sky to Summit is a fall trail race in Sky Valley, Georgia, offering two distances: 50K with 7,500 feet of gain and an 11-hour cutoff, and 25K with 3,500 feet of gain and a 5.5-hour cutoff. Both start and finish in Sky Valley, winding through surrounding mountains, past waterfalls and up to R..

Hyak Halloween 25K, a Rainshadow Running event, takes place on Snoqualmie Tribe Ancestral Lands at the Hyak Trailhead along the Palouse to Cascades Trail near Snoqualmie Pass, Washington. The 25K course features about 1,800 feet of cumulative elevation gain and a similar descent, with roughly half t..

The SARR Rocky Horror Trail Run takes place at Eisenhower Park in San Antonio, Texas. The in-person event offers four distances on rugged, natural trails: 5K (3.3 miles), 10K (two loops), 27K (five loops), and 53K (ten loops) for a total of up to about 33 miles, with about 400 feet of elevation gain..