Trail Running Calendar United States 2026-2027

Trail running through Fenn Valley vineyards on October 3, 2026, with a timed, challenging 5K and an untimed 1 mile course amid harvest sights and smells.

Love Yourself First Masquerade 5K is an in-person and virtual run and walk on October 3, 2026 in Missouri City, TX. The themed event focuses on domestic violence awareness, solidarity, and creating a space for education and healing.

Test your endurance at this 24 hour event featuring a scenic 3.1 mile loop through rolling hills and forest trails. Enjoy full support with an extensive aid station and on site camping while supporting the Lions Bear Lake Blind Camp.

A trail 5K at Claude Moore Park on October 3, 2026, featuring forest and leaf-covered trails, part of the Run Your PRCS Parks timed series, with in-person and multiple virtual entry options.

A fundraising run on October 3, 2026 at Harborcreek Community Park in Erie, PA featuring a 5K and a 1 mile fun run walk to support the Haven 2 Home program; entry fees and race shirts are listed.

A 50K trail race at Hueston Woods made of alternating 5K and 10K loops, with aid stations, a custom finisher medal, and postrace drinks and pizza.

A six-hour trail challenge in Littleton where runners complete a 5K each hour for six hours, totaling 18 miles if completed. Trail terrain, hourly elimination, tiered patches and medals, and national leaderboard prizes highlight the format.

Experience the scenic beauty of Pocahontas State Park at this trail festival featuring a loop course 10k and half marathon. Enjoy runnable trails and professional timing in a picturesque Virginia forest setting.

A **10.6 mile** point to point trail race along the Clark Fork River in Lolo National Forest, finishing near Ferry Landing. Post race food and hot pools are available at Quinn's Hot Springs and entry includes chip timing, shirt, drop bag an..

Experience the autumn foliage during a scenic trail run through the historic Boal Estate and local nature preserves. Enjoy a festive atmosphere featuring a hills course for adults and a short loop for children.

Trail races at Glenroy Preserve on October 4, 2026 offering 5 mile, 25K, and 50K loops with mixed and technical terrain, multiple creek crossings, four aid stations, chip timing, and post-race refreshments.

Trail races in Groton, Massachusetts on October 4, 2026, organized by local running and trails groups. Two distances, 9.5 miles and 3.4 miles, total entries limited to 250, online registration closes October 3.

Experience a classic cross country race on the trails of North Park during the autumn foliage season. Enjoy 20k, 10k, and 5k distances featuring handmade bamboo medals and traditional folk dancing.

A multi-distance running event at Northeast Lakeview College featuring chip timed 5K, quarter and half marathon options, a kids dash, a virtual run, a judged Day of the Dead costume contest, aid stations, and a post-race rally with music an..

Run through 300 acres of scenic vineyards on a flat trail course in Peconic. Enjoy live music, food trucks, and a post-race glass of wine at this chip-timed autumn event.

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.

Black Forest Ultra is a 100K trail race near North Bend PA with over 13,400 ft of elevation gain. The lollipop course reverses direction each year, entrants must finish within 19 hours, and crews pacers and spectators are not allowed.

Trail races of 5K and 10K on the Williamsport Water Authority trails in South Williamsport, featuring Bluebird and Pocowanache Trails, one aid station at Green Bridge, proceeds to the Think Big Pediatric Cancer Fund.

A 26.4 mile trail marathon on Connecticut’s Nipmuck Trail featuring rocks, roots, mud and wood bridges, with an optional two-person relay and elapsed time cutoffs. Organized by the Shenipsit Striders in Ashford, CT.