Trail Running calendar near Hardenburgh 2026-2027

Test your limits on a flat one mile loop at the Sussex County Fairgrounds. Choose from 6 to 72 hour timed races or certified marathon and 50K distances with full kitchen and shower access.

A 15-mile trail event at Mohawk Mountain Ski Area in Cornwall, CT with 7,140 feet of elevation and a 12-hour limit; participants may run, hike, walk, or compete in a relay, with registration listed as free for the stated window.

A timed endurance event in Cohoes, NY offering 6-hour, 3-hour and 1-hour solo options plus 6-hour relays, organized by Flutters of Hope Inc to raise awareness and funds for people affected by eating disorders.

A four mile trail race through Irvington Woods on October 4, 2026, with varied terrain including climbs and stairs; start and finish at Irvington High School. Registration runs March 15 to September 4 with a $40 fee.

Mountain trail race at Camelback Resort on October 4, 2026, run on a 2.5 mile loop with just under 900 ft of climb per loop. Options include 2.5, 5, 10 miles, a 10 mile team relay, ruck division and chip timing.

The Haystack Mountain Challenge on October 4, 2026, features a 5K, 10K and a half marathon across Barbour Woods and Haystack Mountain, with steep climbs, private trail sections, a cupless policy, water stations and on site refreshments.

On October 4, 2026 the Highlander Heavy Half in Cold Spring, NY is a 13.7 mile trail race with roughly 4,000 ft of elevation gain through the Hudson Highlands. A portion of proceeds supports the NYNJTC.

Jungle Escape is a trail running event at Jungle Habitat in West Milford NJ on October 4, 2026. Routes include a 13.2 mile half marathon plus, a 6.6 mile 10K plus and a 3.4 mile 5K plus with marked trails and cupless aid stations.

Trailwagger at Gilbert Lake State Park on October 10, 2026 features 3, 5 and combined 8 mile courses, a two person team division, and a dog stroll. A portion of proceeds supports a local animal shelter.

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.

Experience a trail race at Mohawk Mountain Ski Resort featuring distances from 5k to a full marathon. Run through fall foliage on a course that includes steep ski slopes and the scenic Mohawk State Forest.

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.

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.

Big Bear SquaTch South is a trail running event at Harriman State Park on October 18, 2026 offering a technical half marathon and a 10K with steep climbs, marked courses, aid stations, and capped fields.

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.

Explore the scenic trails of 100 Acre Woods in Malta, New York. This community event on October 18, 2026 features 2k, 3k, and 5k trail runs. All proceeds support local trail maintenance.

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.

A trail event at Muscoot Farm on October 25, 2026 featuring a 5 mile race plus two kids courses for ages 7 to 12 and 6 and under. Packet pickup and parking are provided and participants receive Farm Bucks and kids medals.

Trail half marathon, 5K and a kids fun run in Garrison, NY on October 25, 2026, benefiting the Friends of Philipstown Recreation. The courses run through Hudson Highlands State Park and pass Osborn Castle on private property reserved for re..

The inaugural Barnyard Squatch 5K is a hilly trail race across The Barnyard Sanctuary's nearly 200-acre property in Blairstown, NJ, with over 500 feet of climbing and a route past rescued farm animals. All donations go to the sanctuary.