Trail Running Calendar United States 2026-2027

A six hour loop challenge on shaded single track trails in North Park near Deer Browse 2 Pavilion in Allison Park PA. Runners complete as many 2 mile loops as they wish, earn a raffle ticket per loop, and top male and female loopers receive..

Trail races in Pittsfield State Forest on September 12, 2026 feature 50K, 25K, 15K and 5 mile options. The double loop course includes long climbs, fast descents and three aid stations, with proceeds supporting Free to Run.

A point-to-point 50K on the Pacific Crest Trail from the South Washington Cascades to the Columbia River Gorge, including a viewpoint stop at Three Corner Rock. A portion of proceeds supports the Stevenson High School Cross Country Team.

Weekend cycling and running events in Minden LA with gravel races, paved Fondo rides, MTB races and 5k/10k runs; courses are chip timed and include a post race meal.

Gut Check in Gunnison is a multi-course ruck and running event on dirt and mountain terrain with individual and 5-person team options in light and 35 pound heavy classes. Proceeds support firefighter and veterans charities.

Cornell Days 5k and 1 Mile Fun Run/Walk is a family friendly event at Clinton Keith Mills Memorial Park with an out and back county road course and a postrace breakfast cookout.

Trail races and a kids run at Eagle Creek Campground near Yellowstone on 12 September 2026. Courses include a 9k with 1000 feet of climb, a 5k with 400 feet of climb, and an untimed 5k walk.

A mountain road race in Jelm, Wyoming with a 10 mile out and back on jeep roads and a 50k that repeats the loop three times. The course gains over 2,000 feet and reaches the Infrared Observatory above 9,600 feet.

A 7 mile out and back on the Guild-Hardy Trail near Chattanooga on September 12, 2026, with a 3.5 mile climb to a boulder turnaround and a 3.5 mile descent back. The field is limited to 100 and parking is restricted.

A fall trail event in Groton, Vermont hosted by Onion River Outdoors, offering 25K and 12K routes through Boulder Beach State Park. Note that cell service is limited and day of purchases require cash or check.

A women only trail running event at Fountainhead Regional Park on September 13, 2025 offering a half marathon and a 10k plus option. The event includes organized training runs and a course video; entry is closed.

A 5K obstacle mud run at The Master's Motoplex in Gaston, South Carolina on September 13, 2026, featuring mud obstacles, finishers medals and event photos. The event partners with the National Breast Cancer Foundation to support breast canc..

An obstacle course race at Indiana Dunes National Park on September 13, 2026, featuring 10k, 5K and a K9 3.1-mile event. The course uses varied landscapes to reflect terrains associated with military service.

Experience the rugged beauty of northwest Connecticut at Macedonia Brook State Park. Featuring single track trails and views of the Catskill Mountains, this event offers 12K, 25K, and 50K distances for trail runners.

A community fundraiser at Mendon Ponds Park with in-person and virtual 5k options plus a Trail X Challenge and a 10k combo. The event supports ROCovery and includes event swag and packet pick up dates.

Trail races of 5K and 10K on the singletrack trails of Chewacla State Park in Auburn, Alabama. Part of the Southern Singletrack series and benefiting Valley Rescue Mission, with aid stations and race shirts included.

A fast, net downhill marathon and half marathon on a smooth packed gravel rail trail near Snoqualmie Tunnel. The marathon is USATF certified and a Boston qualifier; headlamps are required for the tunnel section.

Konza 25K & 10K takes place September 13, 2026, at Konza Prairie Nature Trail in Manhattan, KS. The event includes 25K, 10K and a virtual race with tiered registration fees across three periods.

A trail stage race on the Knobstone Trail with 5 mile, Half Marathon, 18 miler and a new 50K option; proceeds support the Suicide Awareness Mission and local scholarship grants.

A September mountain race at Echo Lake State Park offering a five mile course and a half marathon that climbs over 4,300 feet of vertical. Courses run on granite ledges and exposed ridges with remote aid stations.