Trail Running Calendar United States 2026-2027

Run by the Sea at Wilder Ranch State Park on October 4, 2026 offers a Half Marathon, 12K and 4K run/walk along mostly flat packed dirt trails with coastal bluff and Monterey Bay views. Organized by the Santa Cruz Track Club; proceeds benefi..

Trail races at Catalina State Park on 10/04/2026, including a 9.3-mile out-and-back on Nature, Bridal and 50-Year Trails and a 5k on Nature and Bridal; registration, amenities, medals and shirt details are provided.

A 100K trail ultramarathon on the Black Forest Trail in North Bend, PA, featuring over 13,400 ft of elevation gain and steep climbs. The event prohibits crews, pacers, and spectators, and the course reverses direction each year.

Trail races in South Williamsport on mixed singletrack and gravel roads, offering 5K and 10K courses that pass historic Remington Ruins and a scenic vista. Proceeds benefit the Think Big Pediatric Cancer Fund; registration opens May 16.

A 26.4 miles trail marathon in Ashford Connecticut on October 4, 2026, run on the Nipmuck Trail with rocky and rooty sections and wood bridges. A two person relay is offered and cutoffs are set by elapsed times.

Moscow Mountain Madness invites trail lovers to tackle 5 mile, half marathon or 50k courses across technical single track and forest scenery. Tough terrain, aid stations and authentic backcountry vibes make it a memorable mountain run.

An annual flat, scenic marathon and half-marathon on the Greenbrier River Trail in Pocahontas County WV, held October 4, 2026. Proceeds support trail maintenance and local athletic activities.

Keene Family YMCA Fall Foliage Trail Races feature 5K and 10K trail courses starting and finishing at the Keene YMCA, with chip timing, age-group prizes, and proceeds supporting YMCA programs and access.

A Halloween-themed Aspen event with a timed 3.5 mile trail run and a 1 mile walk, pet-friendly course through Marolt foot path and Moore open space, water stations, costume prizes, raffle prizes, food trucks, and proceeds to the Aspen Anima..

Experience a unique trail run through 1600 acres of former prison grounds at Laurel Hill Park. Choose between 5.4 or 10 mile distances on scenic singletrack featuring historic guard towers and open meadows.

Kokanee Trail Runs in South Lake Tahoe on October 4, 2026 offers a half marathon, 10K, 5K and a noncompetitive half mile for children, scenic lake and mountain courses, sustainable event shirts, and local charity support.

Experience a technical trail event in Highlandville featuring 5k, 10k, and half marathon distances. Participants enjoy a hilly course followed by a post race celebration with local craft beer and walking tacos.

A four-race trail series across city and county parks with increasing distances, chip timed scoring, and series awards for runners who complete all four events.

A 5K at Ernie Howlett Park on the Palos Verdes Peninsula with a shaded horse-trail course, in-person and virtual options, and a fundraising entry where raising $100 covers registration and benefits Strides in Recovery.

A 25K trail race in Corvallis starting at the OSU Forestry Cabin. Registration includes a Condor shirt and proceeds support local trail building, Corvallis Mountain Rescue Unit, and a shoe assistance program.

Trail races in Bald Eagle State Forest offering a 13.6 mile half marathon and a 6.4 mile 10K over technical singletrack, steep climbs, stream crossings, and scenic overlooks.

Baker Lake Classic 25k on Sunday October 4, 2026 is a 25k event organized by NW Endurance Events. Registration closes October 3 and the entry fee is $80 with a race shirt offered for $25.

A 50K trail ultramarathon around Blue Marsh Lake near Reading PA with seven themed aid stations, a strict 9 hour limit, and a 2-4 person relay option split into four legs. Post race buffet and finishers swag included.

Experience the scenic Nocatee Greenway Trails in Ponte Vedra Beach with race distances including 10 miles, 10K, and 5K. This event features road and trail running alongside a dedicated 5K ruck and virtual race options.

Trail runs at Jefferson Memorial Forest with an 8-mile route and a 5-mile option, cupless hydration, on-course water for the 8 miler, restroom facilities, awards for overall male and female, and a virtual option.