Trail Running Calendar United States 2026-2027

A backyard ultra on private trails in Eads, TN where runners repeat a *4.167 mile* loop each hour until one runner remains. The event includes basic on site provisions, primitive camping the night before, and a single champion award.

A community fitness festival at Hays Farm Park in Huntsville on September 26, 2026. It features a certified half marathon, a timed 5K, a 1 mile community run, a short bike ride, pop up classes, vendors, and door prizes.

A 30K trail race in Cincinnati run as three laps of a 10K loop, featuring meadows, wooded trails and notable elevation gain. Finishers receive a medal and 30K entrants receive a finisher t-shirt; walkers are welcome.

A clothing optional 5K at Oaklake Trails in Depew, OK, with park entry, pre-race refreshments, and a keepsake magnet; first-time or long-time-away visitors must complete a background check before arrival.

The Birkie Trail Run on September 26, 2026 at the American Birkebeiner Trailhead in Cable, WI offers multiple trail distances including a marathon, half marathon, new 10K, 5K and an 8.5 mile Nordic Trek.

An in-person event on September 26, 2026 in Brunswick, MD featuring a trail-based 5K and timed 3-hour and 6-hour challenges on a 5 mile loop. Proceeds support Brunswick High School Track and Field equipment.

A community 5K, 10K and one-mile run/walk on the Emerald Trail in Jacksonville supporting Groundwork Jacksonville. Courses use the LaVilla Link and S-Line Rail Trail and include chip timing, custom shirts and finisher medals.

Experience the extensive single track trails of the Boise Foothills in this premier trail event. Runners can choose between 50 mile, 50K, and 27K distances starting from Fort Boise.

A 5K trail run at Goddard Park in Warwick, RI on September 26, 2026, with a bayside course and start and finish near the golf course clubhouse. Open to all ages, with published entry fee tiers and on site parking and facilities.

A two-day trail and bike event in Estes Park featuring 31-mile bike and run options, a 15-mile heavy half, and a 62-mile duathlon, with rugged trails, significant climbs, and aid stations supporting competitors.

A grassroots looped ultramarathon in Dixon, IL with a roughly 7.85 mile loop and distances to 100 miles. The course mixes singletrack, meadow and gravel, features two aid stations, allows crew and pacers, and awards finishers.

A trail ultramarathon at Mt. Wilson in the Angeles National Forest offering 25K and 50K courses on technical single track. Courses feature significant elevation gain, marked trails and fully stocked aid stations.

A high altitude trail half marathon near Telluride on September 26, 2026, covering about 13 miles of mostly singletrack through aspen woods, finishing in town with stocked aid stations and required alpine gear.

A point to point half marathon at Twin Lakes near Bridgeport CA on September 26, 2026, with shuttles between start and finish, three water aid stations, and proceeds benefiting Bridgeport Elementary School.

Trail races of 50K, 30K and 15K run through Rocky Peak, Las Lljas and Tapo Canyon in Simi Valley. Courses feature sandstone outcroppings, oak savannah and coastal views with aid stations on the 50K route.

A nonprofit, runner-built mountain 50K on Mt. Taylor near Grants, New Mexico. The course reaches 11,301 feet with about 7,000 feet of elevation change through singletrack, forest roads, and alpine meadows with staffed aid stations.

Trail 5K and 10K at Turkey Creek Nature Preserve in Pinson, AL on September 26, 2026, with an optional waterfall Splash Challenge, pancake breakfast with mimosas, and a capped field supporting preserve education.

Run the Red Desert is a trail race on September 26, 2026 in Wyoming’s Northern Red Desert offering 30K and 50K courses from Whitehorse Creek to South Pass City. It coincides with Wyoming Public Lands Day and highlights conservation of the l..

Obstacle course races at Washington Grizzly Stadium in Missoula on September 26, 2026 offer 3k, 5k, a double 10k, kids and All Abilities categories. Teams and spectators are included and net proceeds support Opportunity Resources Inc.

Rump Roast Run in Minocqua features a 1 mile kids run, a 5K and a 10K along Lake Minocqua and the Bearskin State Trail. The races take place with the Beef-A-Rama festival, including live music, food vendors and a beer garden.