Trail Running Calendar United States 2026-2027

Trail running event in Allison Park, PA on October 17, 2026 with 5 miles, 25K and a Little Monsters run over wooded, hilly trails and pace-grouped entries with separate fees.

A community 5K through Sequoia Park’s redwoods where runners may bring their dogs; proceeds support Sequoia Humane Society and there will be adoption opportunities.

Trail races of 5 km and 10 km across Gunstock Ranchs 900 acre property with views of the Koʻolau mountains and the protected Hawaii Legacy Forest.

A community 5K trail race and 1 mile fun run at Tamaqua Area High School with shirts, awards for 5K finishers, and proceeds funding a memorial scholarship.

A community event at Assateague State Park offering a 2 mile walk or 5K run to support the Macky & Pam Stansell House of Coastal Hospice.

The Finish Strong 5K Fun Run will take place in Groveport on Saturday 17 October 2026. You can run 5 kilometers.

A 10 hour trail event in Cape Girardeau, MO with a 50K option on 1.5 mile loops and a separate 5K, with entry fees donated to charity.

Timed 3 hour and 6 hour loop trail event at Osprey Park in Sultan, WA on a 1.06 mi dirt single track with minimal elevation and an aid station.

A 10 mile race at Fort Huachuca on October 17, 2026, offering individual and team entries, commemorative T-shirts, and top-three recognition in each category.

Scenic road and trail running in Prince William Forest Park with 5K, 10K, half marathon and virtual options for runners and walkers.

A technical trail event in Harriman State Park offering 13.1M and 10K on rugged singletrack with steep climbs, limited to 175 participants.

Trail races in Upper Bidwell Park featuring a 13.1 mile half marathon and a 4 mile hourly endurance challenge with creek crossings, single track trails, aid stations, bag check, bike valet, and reusable cup provision.

Trail and road events in Wellsville NY on October 18 2026 feature distances from 2 miles to 25 kilometers plus a virtual Home Edition. Courses include forest trails, steep climbs, aid stations and bus shuttles to trailheads.

A trail event at Hahamongna Watershed Park offering 5K, 10K and a half marathon with marked courses, chip timing, aid stations and commemorative wooden medals.

A trail event on October 18, 2026 in Letchworth State Park covering about 20.5 miles for both runners and hikers, with two aid stations, elapsed-time cutoffs, a shuttle to the start, participant caps, and post-event food and finisher shirts..

Trail marathon and 12 mile races at Fort Mountain State Park on October 18, 2026, featuring roughly 5,500 feet of climbing across single track, rocky and mixed use trails and a summit stone wall with fall mountain views.

Dirt Circus Dallas in Flower Mound, TX on October 18, 2026 features a community 5K, an expo with vendors, and a raffle alongside local running partners.

Four trail races across Colorado Springs parks with increasing distances and chip-timed series awards for runners who complete all four events.

Experience the scenic singletrack trails of Lake Fairfax Park with 5 mile and 10 mile race options. Enjoy a community atmosphere with post race breakfast and a dedicated program for children.

Two marked trail distances start and finish at Smith Mountain Lake State Park Beach Pavilion. Courses feature lake views, aid stations, GPX files, included park entry, and facilities near the start and finish.