Trail Running Calendar United States 2026-2027

Last Mamba Standing is a Backyard Ultra on private trails near Eads, TN. Runners repeat a 4.167 mile loop each hour until only one runner remains, with a single champion award, finisher medals, and primitive camping available.

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.

Choose a 5 km or a two loop 10 km course from HOB Brewing Company along the Pinellas Trail. Stroller and dog friendly with electronic timing, finisher medals, and a free draft beer for participants aged 21 and over.

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 fund-raising run and walk in downtown Jacksonville offering 5K, 10K, and a one-mile option on September 26, 2026, with tiered registration fees and participant fundraising features.

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 trail event in Dixon, IL on a roughly 7.85 mile loop offering distances from about 8 miles up to a 100 Miler, featuring singletrack, meadow and gravel sections, two aid locations, crew access and pacer allowances.

A trail ultramarathon at Mt. Disappointment in the Angeles National Forest offering 25K and 50K options. Technical single-track courses include substantial elevation gain, staffed aid stations, and awards for top finishers.

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* near Bridgeport, CA on September 26, 2026, starting at Twin Lakes and finishing lower in elevation with rolling hills. Three aid stations, shuttles are provided and proceeds support Bridgeport Elementary Sch..

A trail running event at Corriganville Park in Simi Valley with three distances and aid stations, crossing Rocky Peak and Tapo Canyon on varied sandstone and oak savannah terrain.

Experience an ultramarathon through high mountain meadows and the Continental Divide Trail. Reach the 11305 foot summit of Mt. Taylor for 360 degree views during this scenic 50K event near Grants New Mexico.

Darter Dash is a trail race at Turkey Creek Nature Preserve in Pinson, AL with 5K and 10K courses on mixed trail and pavement. The event is limited to 125 runners and supports the preserve's educational programs.

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..

An obstacle course event at Washington Grizzly Stadium in Missoula on September 26, 2026 offering categories from a double 10K to kids and All Abilities races. Teams combine four racers' times and net proceeds support Opportunity Resources..