Trail Running Calendar United States 2025-2026

The Cuyamaca 100K is an ultramarathon held in Cuyamaca Rancho State Park near Julian, California, about an hour east of San Diego. The race features a challenging 100-kilometer course composed of three distinct loops starting and ending at Camp Cuyamaca. The first loop covers 31.5 miles on the park'..

The Trail du Rocher - Leopold will take place in Leopold on Saturday 4 October 2025. You can run between 15 and 33 kilometers.

The South Texas Ultra takes place at H.W. Lewis Ranch in Leakey, Texas, in the Texas Hill Country. The event offers multiple distances: 50K, 35K, 17K, 17K RUCK, and 5K.Runners encounter rugged trails of rocky, dirt, and grass ATV paths, with more than 2300 feet of elevation gain on the 50K and a 10...

Papertown 10K/20K Trail Races take place at Chestnut Mountain Nature Park along Asheville Highway in Canton, North Carolina. The event offers two trail distances, 10K and 20K, appealing to both steady runners and longer-distance competitors. Billed as inaugural, the races promise a beautiful yet cha..

Export 100 Trail Run is a 101-mile out-and-back ultramarathon in western Pennsylvania, following the Westmoreland Heritage Trail, the West Penn Trail, and portions of the Morosini Preserve, Duff Park, and Pleasant Valley Park. The October route offers scenic fall colors and is highly spectator-frien..

October 4-5, 2025, The Hennepin Hundred is Illinois’ only point-to-point, all-trail ultramarathon, running from Sterling along the Rock River to Colona near the Mississippi and following the 104-mile Hennepin Canal State Trail through northwest Illinois’ historic locks, lift bridges, and scenic farm..

Brant's Apple Orchard 5K Trail Race is held at 4749 Dibble Rd, Ashtabula, Ohio. The 5K trail course winds through vineyard, woods, and rows of apple and pear trees, offering a notably challenging ride with almost constant elevation changes, several creek crossings, and twists and turns. The event is..

Flagstaff Marathon, presented by Cambium Wealth and Legacy Strategies, takes place in Flagstaff, Arizona, at the Arizona Nordic Village in the Coconino National Forest. The event includes Marathon, Half Marathon, 10K, and Kid's Kilo races. Courses are off-road, set at 8,000+ feet elevation among pon..

Arches Marathon and Half takes place in Moab, Utah, offering trail races from 15K to 50K. This fall event highlights Moab’s dramatic red cliffs and canyon vistas, with runners starting near Behind the Rocks Wilderness Study Area as the first climb toward aid stations reveals the La Sal Mountains. Th..

Run-a-Muck, hosted by the Willistown Conservation Trust, takes place in the Willistown countryside (Newtown Square, PA). Participants can choose a 5K run or muck (walk) on a cross-country trail described as diverse terrain. The event blends sport with a festive atmosphere, offering food, beer, wine,..

The Haunted Heritage Trail Fun Run / Hero Walk in Dyersville, Iowa, offers a festive and spooky running experience with multiple events including a 5K Haunted Heritage Trail Fun Run, a 10K Trail Run, and a 1 Mile Hero Walk. Participants are encouraged to wear Halloween costumes as they navigate a 3...

Hit the Trails Family Fun Run is a family-friendly trail event in Anchorage, Alaska, on October 4, 2025, at 5151 Abbott Road. The course runs on trails beside Trailside Elementary School and Service High School, suitable for all ages. Distances include 2K and 5K for both adults (17+) and youth (16 &..

The Lapham Peak Colorama Run/Walk is an annual fall running event held at Lapham Peak State Forest in Delafield, Wisconsin. Celebrating its 36th year in 2025, the event features 5K and 10K races on wide, well-groomed ski and hiking trails. The 5K course tours the park's middle level, while the 10K f..

Wilderness Trail Trek 5K/10K is a well-marked trail race in Lawson, Missouri (34030 West 204th Street) set in the Wilderness Camping and Retreat Center. The event features two distances, 5K and 10K, on a trail that combines dirt, grass, and gravel with scenic views. It is described as the 6th Annual..

Star City San Bruno Mountain Half Marathon & 5K, organized by the Excelsior Running Club, takes place in Brisbane, CA, on the San Bruno Mountain trails. The course is 93% on trail with about 2,400 feet of elevation gain, including a single-track downhill and sweeping views of the Pacific, Bay, and S..

Saddles 100 is an ultramarathon event held in Prescott, Arizona, offering runners the choice to race either 50 or 100 miles. The course features a loop around Prescott, showcasing some of the region's best trails. In 2025, the race will be run counterclockwise, with 50-mile participants covering the..

The Flutters and Foliage Endurance Run, held in Cohoes, NY, is a unique ultra running event supporting Flutters of Hope, a nonprofit aiding individuals and families affected by eating disorders. Now in its third year, the race features multiple endurance challenges including 1-hour, 3-hour, and 6-ho..

The Rim to Rim Royal Gorge Races, held in Canon City, Colorado, offer a scenic and challenging running experience featuring three main events: a 5K road run, an 8-mile trail run, and a half marathon trail run. Each race includes the unique opportunity to cross the iconic Royal Gorge Bridge, the high..

The Crown Stub 100 is a challenging ultramarathon held at Stub Stewart State Park in Buxton, Oregon, known for its scenic outdoor adventure setting. The 100-mile course features over 10,000 feet of elevation gain and combines various terrains, including asphalt on the Banks Vernonia State Trail, har..

The Grand Traverse is an annual fully supported trail running and hiking event held in Duluth, Minnesota, along the scenic Superior Hiking Trail. Scheduled for October 4, 2025, the event offers four challenging point-to-point distances: 10, 17, 21, and 27 miles. Participants enjoy a day on the trail..