Trail Running Calendar United States 2026-2027

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 5K obstacle mud run at The Master's Motoplex in Gaston, South Carolina on September 13, 2026. The course features 18 plus obstacles and welcomes participants aged 7 and older to run, jog or walk with a teamwork focus.

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.

Experience a historic run at Pompey’s Pillar National Monument with an RRCA qualified 5k or a relaxed 1 mile walk. Support local history and preservation while enjoying the scenic Montana landscape this September.

A 5K and 10K trail run in Letchworth State Park on September 13, 2026 featuring woodland courses, finisher medals, a post-race celebration at Trailside Lodge, and timed results with downloadable certificates and photos.

An inaugural trail festival at Greek Peak Mountain Resort in September 2026 featuring multiple mountain races, a kids mile, and a dog friendly 5k. Night races require headlamps and an Uphill 1k climbs the Iliad slope.

A fall mountain event on September 13, 2026 featuring a 25K loop past Crystal Mill, an 8 mile Quarry Climb, and a 2.5K kids run, with a post-race BBQ and proceeds benefiting Marble Charter School.