Trail Running calendar near Mahwah 2026-2027

Trail-based multi-distance races on the towpaths in Upper Black Eddy, PA, with aid stations, onsite tent camping, awards, and donations to local preservation groups.

A community 5K at Duke Island Park on October 10, 2026, run on a flat, paved trail alongside the Raritan River. Proceeds support Family & Community Services of Somerset County, which provides mental health and addiction services.

Experience a scenic 5K run on the historic carriage roads of Rockefeller State Park Preserve. Support trail maintenance while enjoying autumn views of Swan Lake and rolling pastures.

Trail running at Mohawk Mountain Ski Area with 5K, 10K, half and marathon routes on ski slopes and state forest, cupless aid stations and finisher medals.

A single-loop trail half marathon through five parks in lower Westchester County, New Rochelle. Most of the course is on dirt and wooded trails and passes through areas with visible wildlife.

Scary Rat Race is a 4 mile off road trail run at Spring Meadow Golf Course in Farmingdale, NJ on October 11, 2026, featuring hand held timing, a finisher gift, free registration, and event merchandise for sale.

A pickle-themed Halloween obstacle event in Wallkill, NY with an adult 5K and a 1K kids course, themed medals, costumes, mud, and a community-focused Donate a Dragon 3D printing project.

A scenic **5K** trail run and walk at Blydenburgh County Park on October 11, 2026 with in-person and virtual options. Participants receive a race tee, on course hydration and age group recognition while proceeds benefit a local running foun..

Experience Long Islands scenic Robert Moses Causeway in this multi day running event. Support local veterans while choosing between marathon, half marathon, 10k, and 5k distances with finisher medals for all participants.

A 3.5 mile trail run and walk on the scenic, flat Mill Pond Trail at Woodtick Recreation in Wolcott CT on October 17, 2026. Tiered online registration is available and a post-event meal is included with registration.

A non competitive winter running series of six loops totaling 66 miles along the Delaware River in NJ and PA from October 2026 to February 2027. Limited to 100 registrants, includes aid stations and a handmade finisher award.

HHNC Meadows & Trails 5K is an off road 5K at Hudson Highlands Nature Center in Cornwall NY on 10/17/2026, featuring meadows, ponds, wooded trails and views of Black Rock Mountain. Entry is $35 and children under 18 run free.

The Livingston Oval Marathon will take place in Livingston on Saturday 17 October 2026. You can run between 21 and 42 kilometers.

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

A Halloween themed event on Clinton Road in West Milford, NJ offering a 1 mile Zombie Crawl plus 5k and 10k races. The course features zombie volunteers, themed aid stations, and a finish line festival with awards and a costume contest.

An off road 50K through interconnected woodlands near Guilford CT on October 18, 2026, featuring rocky single track and rolling forest roads for experienced trail runners.

Trail and 5K races at Hillside Park on October 18, 2026, benefit a free mammography program. A kids fun run for ages 5 to 12 is included, with chili and vegetarian food and timing by Compuscore.

The 4th annual Chesterfield FALL Terrain 5K at Fenton Lane Park on October 18, 2026 features a 5K run/walk and a 1 mile Fun Dash, supports local charities, offers custom race shirts and age group awards.

Trail ultramarathon in Titusville, NJ with 50K and 25K courses that start and finish at Washington Crossing Park. The 50K features technical Rock Hopper trails and multiple aid stations.

A community run at Ives Farm hosted by Cheshire Community YMCA and Cheshire Land Trust. Features a trail 5K, a youth Y Cup relay with elementary teams, a free Pumpkin Dash for young children and family fall activities.