Trail Running Calendar United States 2025-2026

The Chernisky Ghost Town Trail-a-thon, held in Ebensburg, PA, is a multi-distance running and biking event set along the scenic Ghost Town Trail and C & I Extension. Participants can choose from a marathon (26.2 miles), 15-miler, 5k, or a fun "Couch Potato 0.0k" event. The marathon and 15-miler star..

The Flagstaff Marathon, presented by Cambium Wealth and Legacy Strategies, is a premier running event taking place in Flagstaff, Arizona. Scheduled for October 4, 2025, it features a variety of races including a full marathon, half marathon, 10K, and a Kids Kilo. The event is organized by the Coconi..

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 courses on wide, well-groomed ski and hiking trails. The 5K route tours the park's middle level, while the 10K..

Little Dog's Backyard Ultra is an exciting running event held in Bell Buckle, TN, known for its historic significance in the Backyard Ultra format. Participants will tackle a 4.1666667-mile loop, competing to be the last runner standing. This event offers a unique opportunity for runners to experien..

The Pikes Peak Road Runners Fall Series is a challenging cross country trail running event held in Colorado Springs, Colorado. It features four races of increasing distances—3.8 to 7.4 miles—across diverse city and county parks including Bear Creek Terrace, North Monument Valley Park, Piñon Valley P..

The Groton Town Forest Trail Races, organized by the Squannacook River Runners and Groton Trails Committee, feature two scenic courses of 9.5 miles and 3.4 miles through the picturesque Groton Town Forest. The trails are well-marked and consist of narrow dirt roads and winding paths, presenting a mi..

Nuthatch Nonsense is a challenging 15K trail race held at Sand Run Metro Park in Akron, Ohio. The course features over 1,000 feet of elevation gain, including primitive single-track trails like Dogwood and Nuthatch Loops, plus an out-and-back section on a jogging trail for faster running. The race s..

The Buck 50 is a challenging 50-kilometer ultramarathon held in Kattskill Bay, NY, along the scenic southern Adirondacks near Lake George. The course features rugged, remote trails that traverse four of Lake George's tallest peaks, including Buck Mountain, Sleeping Beauty, Black Mountain, and Erebus..

The Condor 25K Trail Run is a scenic trail running event taking place in Corvallis, Oregon, as part of the Corvallis Trail Series. Scheduled for October 5, 2025, this race aims to promote trail running and support local trail races. Participants will receive a pair of Condor socks with their registr..

The Think Big Trail Challenge, held in South Williamsport, PA, offers 5K and 10K trail runs through scenic and historic terrain at the Williamsport Water Authority. The courses feature a mix of smooth singletrack, rugged climbs, and flowing descents. The 5K route includes gravel roads, forest trails..

The Pocahontas Trail Festival is a running event taking place at Pocahontas State Park in Chesterfield, Virginia. Scheduled for October 5, 2025, the festival features a Half Marathon and a 10k race, both designed to showcase the park's scenic trails. Participants will enjoy professionally timed race..

The Black Forest Ultra is a challenging 100K trail running event set in the picturesque yet rugged terrain of the Pennsylvania Wilds. Known for its demanding course, participants face over 13,400 feet of elevation gain, with steep climbs and stunning views of diverse forest landscapes, especially vi..

The Kokanee Trail Runs, held annually in South Lake Tahoe, California, is a scenic running event featuring a half marathon, 10K, 5K, and a non-competitive half-mile Tadpole Trot for children 12 and under. The courses showcase stunning views, with the half marathon traversing Tahoe Mountain and overl..

"11 Miles to Paradise" is a 10.6-mile point-to-point trail race held in Missoula, Montana, through the scenic Lolo National Forest along the Clark Fork River. The course features rolling single-track trails, offering a challenging and picturesque running experience. After completing the race, partic..

The Greenbrier River Trail Marathon is an annual running event held in West Virginia, featuring a full marathon (26.2 miles) and a half-marathon (13.1 miles). The marathon course is a scenic, point-to-point route that starts at Cass Scenic Railroad State Park and finishes at Stillwell Park in Marlin..

The Blues Cruise is a 50K trail ultramarathon held near Reading, Pennsylvania, celebrating its 20th anniversary in 2025. The 31-mile loop course circles Blue Marsh Lake, featuring varied terrain including fields, rolling hills, single track, and less than half a mile of public road. A notable challe..

Trust Trail Fest October is a trail running event held at the Kennebunkport Conservation Trust headquarters in Kennebunkport, Maine. Participants can choose between a 5k or 10k race that winds through scenic forest trails featuring natural terrain such as rocks, roots, and possible mud. The race sta..

The Stub Stewart Trail Challenge is a trail running event held at L.L. Stub Stewart State Park, featuring challenging loop courses of 6.5 miles, with options for a quarter, half, three-quarter, or full marathon. Participants can choose their race distance after starting, with the opportunity to swit..

The Yuba Gold Trail Runs is a scenic running event held near Nevada City, California, featuring multiple race distances including 50K, 35K, and a half marathon. Participants enjoy stunning views of the South Fork Yuba River and historic sites like Malakoff Diggins. The event takes place at Malakoff..

The Run the Vineyards - Pindar Fall 8K is a scenic running event set in the picturesque Pindar Vineyards in Peconic, NY. Participants can choose between an 8K and a 5K race, both featuring flat courses primarily on hard-packed dirt trails and grass, making them walker-friendly. The event includes ch..