Trail Running Calendar United States 2026-2027

Member-only 5K through woods and fields on October 13, 2026, the final Atlanta Track Club Grand Prix race before the December 12 finale.

A low-key series of Wednesday evening trail races in Portland's Forest Park with three five-race Series April to October, 4 to 7 mile hilly courses and Series standings.

A loop-based trail event near Dubuque, IA, offering **100 mile** and **100 km** options on varied terrain with significant elevation and multiple scenic overlooks of the Mississippi River.

Shake Your Trail Feather Trail Run at Willenborg Woods on October 18 offers distances from a 5K to a 100K across timber, riverside paths, creeks and hills. The event features full course marking, community support and a post-race celebratio..

A three-day trail running event at Silver Falls State Park in Silverton, Oregon, offering distances from 5K to 50K. Registration opens Aug 1 and closes Oct 11, 2026, with fees that vary by race distance.

A weekend of races at the Gallatin County Fairgrounds in Glencoe, Kentucky featuring an 800 m kids run, a 5K trail with a two hour cut off, and a last runner standing ultra run on repeated 2.083 mile laps. Headlamps required for the ultra.

An ultramarathon in western Utah on the historic Pony Express Trail, offered at 50 and 100 miles on 100 percent dirt roads. The route is remote and crew supported with timing checkpoints and simple on course facilities.

Night trail races at Cave Creek Regional Park offering looped 5K, 11K, 22K and 33K options on desert single track with stocked aid stations, live tracking and a cupless race policy.

A three day, 60 mile stage trail race in Chattanooga, Tennessee on October 16 to 18, 2026. Each day uses a different mountain trail and strict time cutoffs and pace expectations apply.

Meyerhoff's Mayhem is a 48 hour endurance event at Big Woods Campground in Cedar Falls, Iowa. Runners do 4 mile loops every 4 hours in individual or team relay formats while meals, finish medals, and participant sweatshirts are provided.

Test your endurance at Autumn Lake Winery with a unique hourly 5 km challenge. Choose from 6, 12, or 24 hour individual and relay events across trails and vineyards in Williamstown.

Trail running at Flat Rock Ranch in Comfort TX with Single Loop, 6H Ultra and 24H Ultra options through prickly pear, rolling hills and camping under the stars.

Trail relay at Flat Rock Ranch in Comfort, TX on October 16-17, 2026 with camping, village amenities, and a 121 miles course across limestone cliffs and rolling hills.

Run a 5K through the private 157 acre Rochester Rotary Sunshine Camp on a mix of dirt trails and paved paths. Enjoy the post race Beer Fest and support accessible camping for children with disabilities.

A three-race evening 5K series at AZ Falls with chip timing, age group awards, desert-themed medals, and a virtual option. The series raises funds for Child Crisis Arizona and limits each live race to 250 participants.

A 2.75 mile Halloween obstacle run in Salt Lake City where participants carry three flags while simulated zombies try to take them, with medals for finishers.

Trail event at Eagle Mountain Park on October 17, 2026, with a 5-mile run and 2-mile hikes, no chip timing, live music, pancakes, shoe demos, and proceeds benefiting Streams & Valleys.

Ruff Run California on 10/17/2026 in Phelan, CA presents a 20 acre obstacle course for people and their dogs with over 20 obstacles, 4K and 1K options, and an after party with music, games and vendors.

Obstacle course weekend at Twin Canyons Ranch near Granbury with Sprint, Super, Beast, Ultra and kids races across rugged terrain.

Indian Creek Trail Runs in Sedalia, Colorado on October 17, 2026 offers multiple trail and ultra distances through montane forests, aspen groves, red rock formations and prairie vistas with city views from several viewpoints.