Trail Running calendar near Rensselaerville 2026-2027

A timed endurance running event in Cohoes, NY on October 3, 2026 offering 6 hour, 3 hour and 1 hour options plus relays. It benefits Flutters of Hope, a nonprofit supporting people and families affected by eating disorders.

A 50 kilometer trail race on October 3, 2026 in Kattskill Bay NY that crosses four peaks around Lake George with about 9,000 feet of climb, staffed aid stations, and a registration requirement for prior ultra-trail experience.

Join the annual Run Stanley event at Stanley Park for a variety of trail races including a 5K K9 run and an accessible 1 mile stroll. Support local wildlife sanctuary maintenance while enjoying a community day in the park.

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.

The Trailwagger is an October 2026 trail event at Gilbert Lake State Park in Laurens, NY with 3 mile, 5 mile, combined 8 mile and two person team options plus a dog stroll. A portion of proceeds supports Super Heroes Humane Society.

Community 5K and a 0.5 mile youth run at Pitney Meadows Community Farm on October 10, 2026. The mixed surface, spectator friendly course runs on grass and stone dust and raises funds for the farm's programs.

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.

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.

Experience the wilderness trails of Deerfield Town Park with a variety of trail races for all ages. Enjoy a professionally timed 5K or a community run while supporting the local food pantry in your favorite running costume.

Trail races in the Hudson Highlands near Garrison NY featuring a Half Marathon, a 5K that follows river and historic paths, and a kids costume run on the recreation center grounds.

The Tri-State New York Spartan Event Weekend at Sunflower Valley Farm on Oct 31-Nov 1, 2026 offers Sprint, Super, Kids races, Hurricane Heat formats, wooded muddy terrain, creek runs, and Spartan obstacles for competitors and spectators.

Trail races at Red Wing Recreation Area in Lagrangeville, NY featuring 100k, 50k and 10k looped courses with significant elevation, on-course aid, and finisher awards.

A technical trail event at Moreau Lake State Park in Gansevoort, NY, covering roughly 14 miles with about 2700 feet of climb. The route runs on winding singletrack with one aid station around six miles in.

A ninth annual charity 5K in Roxbury, Connecticut on November 26, 2026, with a 3.1 mile out-and-back course near Everett B. Hurlburt Community Park. Proceeds support local ambulance and scholarship funds and a food pantry collection.

Experience a 5K trail race through the scenic Stillwell Woods Preserve in Woodbury. This event honors the memory of Rob Lauterborn and supports the Center for Developmental Disabilities.

A mountain trail event at Harriman State Park offering a half marathon, a 10K, and a 10K ruck on rugged, technical courses with significant elevation gain and limited crew access at aid stations.

Two mountain trail races in the Shawangunk Ridge on April 24, 2027. The technical 25K and 10 mile routes feature cliffs, steep climbs, two aid stations, strong course markings, and a 150 participant cap.