Trail Running Calendar United States 2025-2026

The DoWackaDo Trail Runs & Gravel Rides take place at Sandy Sanders Wildlife Management Area near Erick, Oklahoma. The event features multiple trail run distances on Saturday, including 5, 10, 20, 30, 40, and 50 miles, with courses consisting of loops on graded ranch roads through canyonlands. Aid s..

The FallApple event in South Orange, NJ, is a diverse running competition scheduled for September 6, 2025. Participants can choose from various distances, including a 5K, 10K, half marathon (13.1 miles), marathon, 50K, and 50 miles. The course features a mix of fire roads, single-track trails, hills..

The Pine Creek Challenge is a scenic trail running event held in Wellsboro, Pennsylvania, featuring multiple race distances including 100 miles, 100K, 50 miles, and a marathon. The course runs along the Pine Creek Rail Trail, passing through the Grand Canyon of the East, a National Natural Landmark..

The Smallfoot Trail Fest will take place in Mifflinburg on Saturday 6 September 2025. You can run 3 miles.

The Mendocino Running Festival, held in Mendocino Woodlands Park, California, offers a unique outdoor running experience amidst ancient redwoods. The event features a looped 6-mile trail course with 875 feet of elevation gain, crossing log bridges and streams. Participants can choose from a 12-hour..

The Tanri Lake Race, taking place in Miramonte, CA, features both a Relay Race and an Individual Race on September 6, 2025. The Relay Race consists of teams of three runners, each completing four 5-mile loops at an elevation of approximately 6,000 feet. The Individual Race allows participants to run..

The Twisted Pine Trail Runs is an exciting running event set in the picturesque South Beach State Park along the Oregon coast. Participants can choose from three race distances: a half marathon, 10k, and 5k, each offering a unique adventure through lush forests and sandy beaches. Runners will naviga..

The Diablo Trail Run, held at Diablo State Park in Clayton, California, offers a variety of scenic trail running events on September 7, 2025. Participants can choose from distances including 4 miles, 10 miles, half marathon, marathon, and 50K, with a free Kid's Run also available. The course feature..

The Country Roads Trail Run takes place at the Summit Bechtel Reserve near Oak Hill, West Virginia, adjacent to the scenic New River Gorge. This event offers two main distances: a 10K and a half marathon, both featuring varied terrain that includes wide singletrack trails, steep climbs, and technica..

The Mammoth Bar Trail Runs, held in Auburn, California's Auburn State Recreation Area, offer challenging trail races on September 7, 2025. Participants can choose from a Half Marathon, 10K, or 5K, all set on the single-track and double-track trails of the Mammoth Bar OHV Area. Known for its steep cl..

Oli Via is a challenging running event taking place in Chattanooga, TN, featuring a half marathon and a 4.5-mile race, both conducted on dirt trails. The courses include significant elevation gains, with the half marathon featuring 2,444 feet of climbing and the 4.5-mile race having 731 feet. Partic..

The Wicked Mudder will take place in Southwick on Sunday 7 September 2025. You can run between 5 and 5 kilometers.

The Macedonia Trail Race, held annually in Macedonia Brook State Park in Kent, Connecticut, offers trail runners a unique experience with its lush forest trails, challenging climbs and descents, and stunning viewpoints including Cobble Mountain, where runners can see the Catskill Mountains on clear..

The Glen Iris 5K & 10K Trail Run/Walk is a scenic event held within Letchworth State Park, known as the "Grand Canyon of the East," in Castile, NY. Participants will enjoy challenging woodland trails with breathtaking views of the Genesee River Gorge, wildlife, streams, and bridges. The race feature..

The Mt. Spokane Trail Run is a scenic trail running event held at Mt. Spokane State Park, featuring courses of 5K, 10K, and 25K distances.Participants enjoy a course along Spokane's historic mountain, starting and finishing at Selkirk Lodge. Runners receive a finisher shirt, medal, and food, with op..

The Rut Mountain Runs is a three-day mountain running event taking place in Big Sky, Montana, from September 12 to 14, 2025. The event features a variety of races, including the Lone Peak Vertical Kilometer, a Trifecta (50K, 28K, VK), and distances ranging from 50K to a Kids 1K Runt Run. This celebr..

The Breckenridge Oktoberfest 5K is a festive running event held in historic downtown Breckenridge, Colorado, as part of the annual Oktoberfest celebration. This 5K trail run takes participants through scenic Town of Breckenridge Trails, showcasing beautiful fall foliage and changing aspens. The race..

Run Rabbit Run is a challenging ultramarathon event held in Steamboat Springs, Colorado, featuring 50-mile and 100-mile races through the scenic Routt National Forest. The 50-mile course starts at the Steamboat Springs ski area (6,900 ft elevation) and climbs nearly 9,000 feet, including ascents to..

The Goat Rattler 100 is a challenging ultramarathon held in North Ogden, Utah, featuring a 101-mile course with 22,500 feet of vertical gain, primarily on single-track trails. Participants must have prior ultrarunning experience, completing a 100-mile or equivalent race within the last two years. Th..

If You're Not First You're Last is a unique endurance running event held in Eagle, Idaho, featuring a challenging 4.167-mile loop course. The race tests participants' stamina and grit rather than speed, as runners must complete each loop within an hour and be back at the starting corral on the hour..