Trail Running Calendar United States 2025-2026

The Bronze Dragonfly 30 Hour Ultra is a multi-distance endurance running event held at Lake Mayer in Savannah, Georgia. Participants can choose from 3, 6, 12 (day or night), 24, or 30-hour races on a 1.4-mile USATF certified course featuring half paved and half rubberized track terrain. The event is..

The Sunflower Relay, Half Marathon and Marathon will take place in Winthrop on Saturday 25 April 2026. You can run between 13 and 26 miles.

The TARC Spring Classic is a trail running event held annually at Jericho Town Forest in Weston, Massachusetts. It offers multiple distance options including 10K, Half Marathon, Marathon, and 50K, catering to runners of all levels. The course features a relatively flat, smooth 10K loop with addition..

The Extreme North Dakota Sandhills Ultra Run Experience is a scenic trail race held in McLeod, North Dakota, featuring 25K, 50K, and 100K distances. The course traverses the Sheyenne National Grasslands section of the North Country Trail, southwest of Fargo, showcasing diverse terrain including wide..

The Dunes 50K Ultra & Heavy Half is a challenging trail running event held at Jonathan Dickinson State Park in Hobe Sound, Florida. The race features two main distances: a 50K ultra and a 14.4-mile Heavy Half marathon. Participants traverse over 11,000 acres of diverse terrain, including 16 unique n..

The Virginia Run for Cancer is a 24-hour solo and team ultramarathon held in Hampton, Virginia, featuring a USATF-certified 3.75-mile all-dirt nature park trail. The event welcomes runners and walkers of all abilities, offering a flat course ideal for endurance running. Participants can compete indi..

Pandora's Box of Rox is a popular trail running event held annually in late April at Reveille Peak Ranch near Burnet, Texas, just outside Austin. The race offers multiple distances including 4 miles, 8 miles, a half marathon (13.1 miles), a full marathon (26.2 miles), and a double marathon (52.4 mil..

The Bonneville Backyard Ultra, held near Provo, Utah at the Deer Creek Dam Trailhead, is a challenging last-person-standing ultramarathon. Runners complete a 4.167-mile out-and-back loop along the scenic Deer Creek Reservoir every hour on the hour. The course is mostly smooth and runnable, but the r..

Childish Nonsense is a trail running event held in Palatine, Illinois, at Deer Grove Forest Preserve West. It offers multiple distances including a 50-mile, 50K, 25K, and 10K, with courses consisting of laps on a mostly wide, non-technical trail. Runners encounter a single aid station at the start/f..

The Gator Wilderness Camp Trail Run/Walk is a scenic event held at Gator Wilderness Camp School in Punta Gorda, Florida, featuring 5k, 10k, and 15k trail races through diverse woods and shaded hammocks on 250 acres. The event supports a residential school for struggling adolescent males. Runners can..

The Mt. Tam Wild Boar Half Marathon & 10K is an annual trail running event held at Mt. Tamalpais State Park in Mill Valley, California.Celebrating its 38th year, the race features a scenic coastal ridge course combining paved roads and single-track dirt trails with stunning views of the Pacific Ocea..

Wawayanda Trail Fest is a challenging trail running event held in Vernon Township, New Jersey, at Wawayanda State Park. The festival offers multiple race distances including a 100K, 50 Mile, 50K, and Half Marathon, featuring a unique 26+ mile loop course with scenic rhododendron tunnels, marsh bridg..

The Coldwater Traverse is a trail running event held in Ogden, Utah, featuring 16-mile and 11-mile race options. The course follows the scenic Bonneville Shoreline Trail, offering runners a beautiful and engaging route. This event is suitable for both new trail runners looking to gain experience and..

The Oxbow Trail Runs is a family-friendly trail running event held at scenic Oxbow Regional Park near Gresham, Oregon, about 30 minutes from downtown Portland. Scheduled for April 26, 2026, the race offers three distances: 5k, 10k, and a half marathon. The courses start and finish at the Alder Picni..

Leatherman's Loop is a renowned 10k trail race held annually each spring at the Ward Pound Ridge Reservation in Cross River, New York. Established in 1987, it is considered the largest trail race on the East Coast of the United States. The event features a challenging and scenic course through the r..

The Jack Bristol Lake Waramaug Ultra Races, held in Kent, Connecticut, is a historic ultra running event featuring 100K, 50-mile, and 50K distances. The course consists of rolling loops primarily on flat, paved roads around scenic Lake Waramaug, known for personal record performances. Runners enjoy..

Coyote Two Moon is a challenging trail running event held in the scenic Los Padres National Forest near Ojai, California. The race offers a variety of distances ranging from a 10K fun run to ultra distances including 30K, 55K, 55 miles, 100K, and a grueling 100-mile course. The ultra courses feature..

The WausaUltra event, held in Wausau, Wisconsin at Sylvan Park, offers three race formats: Limitless, Double, and Solo. The Limitless race is a "last runner standing" challenge where participants run a 4.167-mile mostly trail loop every hour starting Friday morning, continuing until only one runner..

The Salt Flats Endurance Runs take place at the Bonneville Salt Flats International Speedway near Wendover, Utah. This event offers multiple ultramarathon distances including 50K, 50 mile, 100K, and 100 mile races, all starting simultaneously on Friday morning. The courses begin on the iconic salt f..

The Greenland Trail Races take place annually in May at Greenland Open Space in Larkspur, Colorado. Offering four distances—4 miles, 8 miles, 25K, and 50K—the event features a fast, beginner-friendly course on wide, smooth dirt trails through native grasslands, oak hills, and ponderosa pine forests..