Trail Running Calendar United States 2025-2026

The Rock 'N The Knob Trail Challenge, held in Claysburg, Pennsylvania, is the state's highest trail race, taking place atop Blue Knob Mountain at over 3,100 feet elevation. The event offers three challenging courses: a 10K "Short Course" featuring steep climbs and technical terrain; a 20K-25K "Mediu..

The South Hills Single Track Trail Run - Summer, held at Calero County Park in San Jose, CA, offers a variety of distances including 50K, trail marathon, 16-mile, half marathon, 9-mile, 10K, 5K, mile, and a kids run. The course features challenging single track trails, hills, dirt paths, oak trees,..

The Tucard will take place in Orono on Saturday 13 September 2025.

The Ned Ned Half Marathon is a long-standing trail running event held in Nederland, Colorado, a picturesque mountain town at 8,236 feet elevation. Celebrating over 43 years, the race features a challenging 13.3-mile half marathon with 1,408 feet of elevation gain, traversing dirt roads and single-tr..

The Mountain Lakes Trail Run & Walk in Princeton, NJ, is a scenic event held at the Billy Johnson Mountain Lakes Nature Preserve, benefiting the Friends of Princeton Open Space. It features a 5K+ trail run and a 3K walk, both starting from Community Park North Amphitheater. The trail run covers abou..

The Friends of Pilot Knob Trail Race is held annually at Pilot Knob State Park in Forest City, Iowa. The event features 5K and 10K trail races, offering runners a scenic course through the park's natural surroundings. Participants enjoy a friendly and supportive atmosphere, with refreshments served..

The Pawling 24 Hour Trail Running Festival, held in Pawling, NY at Lakeside Park, offers runners a challenging and festive endurance experience. Participants can choose from 3, 6, 12 (including a night start), or 24-hour timed races on a 1.68-mile loop course featuring pavement, grass, and single-tr..

The Jelm Mountain Run, held in Southeast Wyoming near Jelm Mountain, offers two challenging distances: a 10+ mile out-and-back course and a 50k race that covers the 10-mile route three times. The course features rugged jeep roads with over 2,000 feet of elevation gain, starting at 7,600 feet and cli..

The Riverbend Ultras 12 HR/50K is a community-focused ultrarunning event held at the River Pavilion on Picnic Island in Riverbend Park, Jupiter, Florida. Participants run on scenic gravel trails along the Loxahatchee River, including part of the Lake to Ocean Trail, surrounded by local wildlife such..

The 7th Calvary Trail Run offers two scenic trail race options—a 4-mile and an 8-mile course—held at the Fort Meade Trailhead near Sturgis, South Dakota. Set in the beautiful Black Hills, the event features rugged, well-marked trails with wide-open views, ideal for both beginner and experienced trai..

The Wahaneeta Trail Run is a 5K trail race held in Westerly, Rhode Island, located on Moorhouse Road. Scheduled for September 13, 2025, it is the first event in the WTAC Fall Trail Race Series, which includes four races with a discount for registering in multiple events. This race embraces an "old s..

The Mountain Goat Cabin Trail Run takes place at the Merck Forest and Farmland Center in Rupert, Vermont. The main event features a challenging 7-mile loop with approximately 1,500 feet of elevation gain, winding through scenic trails and forest roads. Runners experience two historic cabins, Ned's P..

The Pleasant Creek Trail Run, hosted by the Eastern Iowa Trail Alliance, is an annual trail running event held in Palo, Iowa. The 2025 race offers three distances: 15K, 30K, and 45K, all run on Pleasant Creek’s scenic outer equestrian trail loop. The course features primarily dirt and grass trails w..

The Oak Flats Picnic Trails event, held in Tijeras, New Mexico within Cibola National Forest, offers a free, self-supported trail running experience suitable for all abilities, including dogs. Participants can choose distances from 5k to 30k by completing laps on two looped courses—a short 3.2-mile..

The Iron Will 100 in Junction City, Kansas, is a challenging ultramarathon event featuring multiple distances: 100 miles, 100K, 50 miles, 50K, and a 36-hour timed option. The course is a flat, fast river trail with approximately 75% shade, designed as out-and-back loops—ten for the 100-mile race and..

XTERRA Lake Tahoe is a renowned off-road triathlon and trail running event set in the stunning scenery of Lake Tahoe, United States. The classic triathlon course includes a 1.5K swim in Lake Tahoe’s clear waters, followed by a challenging 35.5K bike ride starting with a sandy climb up Tunnel Creek a..

The Jones Gap Trail Half Marathon is a scenic 13.1-mile trail race held in Jones Gap State Park near Marietta, South Carolina. Set within the Mountain Bridge Wilderness Area, the course features challenging single-track trails with a total elevation gain of 3,000 feet. Runners experience stunning na..

Run for the Hills is an annual 5K trail run and walk held at the Oswegatchie Hills Nature Preserve in Niantic, Connecticut. The event offers participants a scenic course around Clark Pond and through over 450 acres of coastal forest, showcasing the preserve's natural beauty. It serves as a fundraise..

The Berkeley Trail Adventure is a scenic trail running event held in Berkeley, California, within Tilden Regional Park and Wildcat Canyon. It offers four race distances: 10K, half marathon, 35K, and 50K, featuring technical dirt trails, fire roads, and some asphalt sections. The course showcases sha..

The Helvetia 10k Mountain Run is an annual race held in Helvetia, West Virginia, a small Swiss mountain community in southern Randolph County. Celebrating its 26th running in 2025, the event features a 6.2-mile course on country roads and trails that follow portions of an original Swiss settlement t..