Trail Running Calendar United States 2025-2026

The Dahlgren Heritage Rail Trail 50K is a challenging ultramarathon held in King George, Virginia, on August 2, 2025. This 31-mile race takes place on the Dahlgren Railroad Heritage Trail, a flat, well-maintained, and mostly shaded converted railroad bed featuring dirt, grass, pine needles, crushed..

The River to Sea 12/6 Hour Trail Race takes place in Palm Coast, Florida, featuring a nearly one-mile loop trail surrounded by palm and oak trees in a classic old Florida hammock setting. The course is flat, shaded, and nontechnical, offering a scenic and comfortable running experience between the r..

The Dino-Griffin 10K Bonus Run is a trail running event held at Griffin Bike Park in Terre Haute, Indiana. The race features a 10-kilometer course consisting of two laps around Stryker Lake, with moderate terrain, rolling hills, and generally stable footing. The wide trails allow for easy passing an..

The Rodeo Valley Trail Run, held in the scenic Marin Headlands near Sausalito, CA, offers trail races of 8K, Half Marathon, 30K, and 50K distances. Starting near historic Fort Cronkhite and Rodeo Beach, the course features challenging steep climbs and descents along coastal trails with stunning view..

Oakadoke Trail Runs, held in Valparaiso, Indiana, offers scenic trail racing through Creekside Trails featuring tree-covered single-track, switchbacks, creek crossings, and farmland views. The event includes three distances: 18 miles, 9 miles, and 4 miles, with start times in the morning. The challe..

The Sheep Mountain Ultras, part of the Human Potential Running Series, is a challenging trail running event held annually in Fairplay, Colorado. The race offers three distances: a 50-mile ultra, a 50k, and a half marathon, all starting and finishing at the Town of Fairplay Beach. Set at an average e..

The Bob's Big Timber Backyard Ultra will take place in Glenmont on Saturday 2 August 2025.

Run for the Oaks is an annual running event held at Left Coast Estate in Rickreall, Oregon, designed to support the Oak Savanna Restoration Project. Participants can choose between a 5K or 10K trail run, with the course winding through beautiful vineyards and oak forests. The event aims to raise fun..

The MCW Westfield Ultra is an endurance race held at Tamaques Park in Westfield, NJ, on August 2, 2025. Participants can choose from 3, 6, 9, 12, or 24-hour events, aiming to complete as many laps as possible around a 0.8-mile course that features pavement and gravel paths. The event fosters a suppo..

The People's Forest 7-Mile Trail Run is an annual trail running event held in Barkhamsted, Connecticut. This race covers a challenging 7-mile distance through scenic forest trails, offering runners a chance to experience natural beauty and rugged terrain. The event is part of the USATF/CT Mountain U..

The Boise Front Trail Festival is a running event scheduled for August 2, 2025, at Bogus Basin Ski Resort in Boise, Idaho. Participants can choose between two courses: a 5-mile and a 10-mile run. This festival not only promotes fitness and outdoor activity but also supports a charitable cause, as pr..

Loopy Looper is an ultra running event held at Cooper River Park in Pennsauken, New Jersey, featuring a fast and mostly flat 3.75-mile paved loop with scenic views of the Philadelphia skyline and river. The race offers multiple distances including 12-hour, 24-hour, and a 101.25-mile ultra, as well a..

The Gremlin Gallop 5k is an annual scenic race held along the Armstrong Rails to Trails in East Brady, PA. Celebrating its 10th edition, the event offers a beautiful course suitable for runners of all levels, from beginners to seasoned athletes. Participants can enjoy the natural surroundings while..

The South Texas Rollers Cross Country Invitational Season Opener is a 5K race held in Corpus Christi, Texas. This event welcomes runners of all levels and offers overall, age group, and team awards, along with finisher medals. The race takes place at West Guth and aims to provide a memorable cross c..

Night Claw is a unique nighttime trail running event held at Dinosaur Valley State Park in Glen Rose, Texas. Participants can choose from various distances including 5K, 10K, and timed 4-hour, 6-hour, and 8-hour races, all featuring scenic, hilly single-track trails with dirt, rocks, and a river cro..

The Ralph Painter Memorial Run, held in Rainier, Oregon, features 5K and 10K distances to honor the memory of Chief Ralph Painter of the Rainier Police Department. This event supports the Ralph Painter Jr. Memorial Scholarship Fund, which awards scholarships to deserving high school seniors in Colum..

Stephen's Run 6k is a cross-country running event held in memory of Stephen Pangborn, a young athlete who lost his battle with cancer. Scheduled for August 3, 2025, at Long Point State Park in Bemus Point, NY, the race aims to raise funds for the Stephen Pangborn Memorial Scholarship Fund. Participa..

The Merrie Mill Farm & Vineyard 10k and 5k is a scenic cross-country race held at Merrie Mill Farm & Vineyard in Keswick, Virginia. Participants can enjoy a course that features hills, gravel, dirt, and paved roads, with the 5k being one lap and the 10k two laps around the vineyard property. Runners..

The Nashville Running Company's Bowie 6 Miler is a popular trail race held in Fairview, Tennessee, featuring a 6-mile course through scenic trails with gradual inclines, single and double tracks, and soft pinestraw underfoot. Known for its fast and enjoyable route, it is a fan favorite in the 6 Mile..

Run The Woods-Oxbow is an annual trail running event held at Oxbow Park & Zollman Zoo in Byron, Minnesota. The 7th edition, scheduled for August 3, 2025, offers three race distances: 10 miles, 5 miles, and 2 miles. The course features scenic trails through the park, including challenging hills and t..