Trail Running Calendar United States 2025-2026

The Last Cowboy Backyard is Nebraska’s first Backyard Ultra event, held in O’Neill, NE, starting at the community center. The race features a 4.17-mile out-and-back course along the flat, non-technical Cowboy Trail, ideal for achieving high mileage and personal records. Participants run one lap ever..

The SARR Rocky Horror Trail Run is an annual trail running event held at Eisenhower Park in San Antonio, Texas. Scheduled for October 25, 2025, it offers multiple race distances: 5K, 10K, 27K, and 53K, with both in-person and virtual participation options. The course features a challenging 3.3-mile..

The WXT Ultra is a trail running event held in Titusville, New Jersey, starting and finishing at Washington Crossing Park. It offers two distances: a 25K and a 50K. The 25K course features mostly single-track trails, including an 8.5-mile section within the park and short road segments.The 50K follo..

Last Man Standing in Lumberton, Texas, is a unique endurance running event set in a scenic local park surrounded by towering pines and natural beauty. The race features a two-loop 4-mile course with well-maintained trails, shaded paths, and open stretches suitable for all levels. The challenge lies..

The Greensprings 24 is a 24-hour endurance race held in Williamsburg, Virginia, benefiting The Arc of Greater Williamsburg, a nonprofit supporting adults with developmental disabilities. Participants run or walk on a USATF-certified 2.215-mile loop course featuring a flat, scenic, and non-technical..

The Mosquito Hill Endurance Run is an annual trail running event held at Mosquito Hill Nature Center in New London, Wisconsin. Participants run or walk on a 3.4-mile loop trail featuring wetlands, prairies, forests, and a climb to the top of Mosquito Hill, with about 400 feet of elevation gain per l..

The Into the Darkness Night Trail Run is a unique 4-mile night race held in Roanoke Valley's Explore Park. The course features a mix of twisty, rolling single-track trails and grassy, gravel roads, primarily on IMBA-designed trails. Runners navigate the route marked with reflective arrows and glow s..

The Georgia Sky to Summit is a scenic trail running event held in Sky Valley, Georgia, featuring two race distances: a challenging 50K with 7,500 feet of elevation gain and an 11-hour cutoff, and a 25K with 3,500 feet of gain and a 5.5-hour cutoff. The course showcases stunning mountain landscapes,..

The Equalizer Endurance Run is an inclusive running event held in Des Moines, IA, designed for both new and experienced runners to challenge themselves at ultra distances. The event features a unique age/sex 'equalizer' scoring system, allowing participants to compete fairly across different age gro..

The Quicksilver Trail Challenge, hosted by the Quicksilver Running Club in San Jose, California, is an annual trail running event held in late summer or early fall at Almaden Quicksilver County Park. It features a half marathon, a 10K race, and a free one-mile kids' fun run. The courses traverse sce..

The Haunted Hills 10K in Redwood City is a unique nighttime running event featuring a spooky, fun atmosphere perfect for adults and families. Participants run in teams of 1 to 5, equipped with headlamps or flashlights, as they navigate through wickedly decorated neighborhoods. The course includes 36..

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 Ozark Trail 100 Mile Endurance Run is a challenging ultra-running event held in Steelville, Missouri, traversing 101 miles of the pristine Ozark Trail through Mark Twain National Forest. Celebrating its 17th year, the race features nearly continuous single-track trails with about 12,000 feet of..

The Chupacabra Trail Run takes place in Waco, Texas, at the Redwood Shelter in Cameron Park. Scheduled for October 25, 2025, it is the final race in the Huaco Cuatro Trail Run Series, which features challenging trails in the Waco area. Participants can choose between a 5K or 15K trail run, with virt..

The Grills Trail Run, hosted by the Westerly Track & Athletic Club, takes place at Grills Preserve in Westerly, Rhode Island. Scheduled for October 25, 2025, it features two race distances: a 10-mile and a 10K. Both courses start and finish at Grills Preserve, showcasing scenic trails with about 80%..

Caspers Trail Races, held in San Juan Capistrano, California, offer a variety of distances including 10K, 13.2 miles (half marathon), 30K, marathon, and 50K. The event features well-supported and clearly marked trail courses, ensuring a safe and enjoyable experience for participants. Runners can exp..

The Trail Run at Sly Park - Fall is a scenic trail running event held at the Sly Park Recreation Area in Pollock Pines, California, within the El Dorado National Forest. The race offers multiple distances including 5K, 10K, 8 Mile, Half Marathon, 17 Mile, Trail Marathon, and 50K, all featuring rolli..

The Big Elkin Trail Relay is a team trail running event held in Elkin, North Carolina, featuring a 5K loop on single-track trails and granite dust paths along the old E&A Railroad grade. The course offers shaded running with scenic views of waterfalls, Big Elkin Creek, and Elkin Reservoir. Teams of..

The Tussey Mountainback 50 Mile Ultra is a scenic ultramarathon held in Boalsburg, Pennsylvania, within Rothrock State Forest. The race features a USATF-certified 50-mile loop composed mostly of unpaved fire roads, with varied terrain including uphill, level, and downhill sections, shaded areas, and..

The Hills Are Alive Cross Country Race, now themed as the Ghostly Gallop Trail 5K, is held at Arrowhead Golf Course in Milton, Vermont. The 5K course runs along the scenic Laura’s Tears trail, offering a trail running experience with a festive Halloween atmosphere encouraging participants to wear co..