Trail Running Calendar United States 2026-2027

A women's trail running event in Buena Vista, Colorado offering a Half Marathon and a 10k on mountain trails with views of the Collegiate Peaks and the Arkansas River. Organized by Trail Sisters to increase women’s participation in trail ru..

Oak Flats Picnic Trails in Tijeras, NM is a free, self supported looped trail event with distances from 5k to 30k on unmarked routes and a picnic table aid station. Dogs are welcome and registration on UltraSignUp is required.

A Backyard Ultra in Noblesville, Indiana on Sept 12, 2026 where runners repeat 4.167 mile loops each hour until one remains. The course combines a dirt and gravel park loop with a paved out and back.

Trail ultraruns and a ruck division route through the rugged Caney Fork and Scotts Gulf backcountry near Sparta, Tennessee, with technical singletrack, limestone bluffs, caves, and waterfalls; the weekend centers at Camp Latimer.

A multi-distance trail event near Cortland, NY on September 12, 2026, featuring 100 mile, 50 mile, 50K and a 100 mile relay. The route includes steep climbs, technical singletrack, planned course changes, and allowances for pacers and poles..

Trail races in Hocking Hills State Park on September 12 2026 feature five distances from 5K to 50K, mostly on trail through Old Man's Cave, Cedar Falls and Ash Cave, with GPX files and mapped distances provided.

A family-oriented mud run in Redding on September 12, 2026 featuring a course just under 5 km with obstacles, creek crossings, vendors, food, and children's activities. The event supports the Active 20-30 Club of Redding.

A self-navigated mountain ultramarathon around Roslyn, WA, featuring a 51.3-mile route with over 10,000 feet of climb, minimal aid, required satellite tracking, and finish verification by GPX and summit selfies.

A community wellness event at Sprague Brook County Park on September 12, 2026 featuring a 5K trail run and a 2 mile non timed walk, with proceeds supporting the Bread of Life Outreach Center and keepsake blankets for early registrants.

A timed trail event near Gig Harbor with 24 hour, 12 hour day, 12 hour night and 6 hour options on a two mile loop featuring about 320 feet of climb per lap. Aid station, drop bags, limited canopy space and awards provided.

A nighttime out and back at Lake Mineral Wells Trailway near Weatherford offering 5K, 10K, 13.1M and a 10K ruck on soft fine gravel. Headlamps and personal water systems are required and aid stations provide water and electrolytes.

A night trail event in Green Swamp near Dade City on September 12 2026 offering a half marathon and a half marathon ruck. The out and back course follows forest roads and the Florida Trail, with an aid station at the turnaround and a postra..

Trail race at Sloppy Floyd State Park near Summerville GA on Sep 12, 2026 with 5K, 10 mile, half marathon and a special 20 mile option for 2026 only. Course includes wide trails, single track, Marble Mine and climbs to Becky's Bluff.

An urban obstacle race on the Jersey City waterfront on September 12, 2026. The event features a fast 3 mile course with 20 plus city-style obstacles, chip timing, new finisher medals, awards, and free race photos.

A community-focused trail event in Riverbend Park, Jupiter, FL offering a 50K, a 12-hour loop challenge, and a shorter fun run on gravel trails along the Loxahatchee River with shirts, medals, and local trail support.

Trail races at Stevens Creek Reservoir in Cupertino on September 12, 2026 include a half marathon, an 11K, and a charity 2.5 mile Lollipop Loop. Courses use shaded single track and ridge views with aid stations and a post race BBQ.

A trail race on Meadow Mountain in Minturn, Colorado offering an 11K and a 5K route across singletrack and meadows with stream crossings, scenic mountain views, on-course aid stations, and finish-line t-shirts and refreshments.

Mind Freak in Marietta GA is a backyard ultra style trail event on a 1.5 to 2 mile loop. The race is untimed and self supported, letting runners repeat loops to reach a 50K distance or go farther.

Experience an outdoor adventure at Everest Park featuring a four mile obstacle course with forty natural and man made challenges. Families can choose between the full mud run or a specialized mini course for younger children.

A last person standing loop race at Ferne Clyffe State Park with 4.167 mile loops and about 600 feet of climbing per loop. Night laps require a headlamp and reflective vest and registration is capped at 75.