Trail Running Calendar United States 2026-2027

Looped 100-mile and 100K trail races around the Mines of Spain Recreation Area in Dubuque, IA, with varied terrain, scenic Mississippi River views, and significant elevation gain.

Two-day trail running event at Willenborg Woods near Charleston IL offering 5K, 8 miler, 16 miler, 50K and 100K on marked single-track trails.

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 around Chattanooga with 22 mile, 18 mile and 20 mile stages on Lula Lake, Cumberland Trail and Signal Mountain.

A 48 hour endurance event in Cedar Falls with repeated 4 mile legs, individual and team relay options, on course meals, participant sweatshirts and finisher medals.

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.

Trail run at Saw Wee Kee Park on October 17, 2026, over soft, twisting trails with variable footing. Bib-timed waves, part of a four-race series with collectible medal pieces and seasonal swag.

Ultrarunning on a 2 mile loop at Cahuilla Indian Reservation in Anza with multiple race formats, camping, aid stations, and fundraising for tribal youth programs.