Trail Running calendar near Closter 2026-2027

A trail party on November 28, 2026 at South Mountain Reservation in West Orange, NJ, featuring 5K, 10K, 25K, 50K and a Kids 1M on a 5K loop. The course mixes carriage roads and technical singletrack and supports Bigger Than The Trail.

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.

Challenge yourself on the historic Tower Trail at Sleeping Giant State Park. Choose between 4 or 8 hours to complete as many 3.3 mile loops as possible on this scenic gravel path to the Observation Tower.

A trail 6K through Institute Woods with a non-competitive 3K option for paces over 15 minutes per mile. Registrations are limited to 200, a fee applies, and post-run refreshments are provided.

Trail races at South Mountain Reservation feature 5K, 10K and 13.1 miles on looped courses over fire roads, single track, hills and pavement, with aid about every three miles and race day registration available.

A looped road ultra in Prospect Park, Brooklyn on Dec 6, 2026 offering 50-mile and 50k options over 3.33-mile loops, with a 15 hour cut-off, Skratch Labs hydration, pot-luck aid, and finisher buckles.

A looped trail event in Holmdel Park with a roughly 4.65-mile lap, varied terrain, RFID lap timing, a single start/finish aid station, and proceeds supporting MissionCleanWater.

Experience an exclusive trail run through the scenic Roosevelt Forest in Stratford. This 5K event features a natural off-road course limited to a small group of participants and includes custom finisher medallions.

Trail races at South Mountain Reservation include 5K, 10K and 13.1 mile looped courses with aid stations every 3 miles. Courses use fire roads, single track, hills and some pavement and offer advance and day-of registration.

A winter trail party on a 5K loop offering 5K, 3 hour, 6 hour, and 3 hour rucking divisions, with proceeds benefiting the South Mountain Conservancy. The course mixes carriage roads and technical singletrack with about 300 feet gain per loo..

A onesie-themed 5K at Ramapo Valley County Reservation on February 14, 2027, run on a flat scenic loop around Scarlet Oak Pond. The event is capped at 200 participants, has no cutoff, offers adaptive support, and includes a finisher medal.

Trail races on a 10 mile loop at South Mountain Reservation offering 50M, 50K, 20M and 10M with marked trails, three aid stations per loop, timing, SWAG, and awards for top three male and female finishers.

A timed loop event at the Oval in Livingston NJ offering 12 hour, 6 hour, 3 hour and 1 hour races on a USATF certified flat course. Awards include plaques and participants receive a cap or winter hat with an opt out discount.

A multi-loop trail race at South Mountain Reservation offering 11M, 20M, 50K and 50M options on three marked loops with varied terrain, significant elevation gain, a single finish-area aid station, and support for the South Mountain Conserv..

The Ospreys Dominion Wine Run 5K will take place in Northville on Saturday 20 March 2027. You can run 5 kilometers.

A trail 5K and free kiddie run at Bethpage State Park with soft trails, event shirts, post race refreshments and a virtual option; proceeds support the Never Stop Running Foundation.

A community 5K run and walk at Bethpage State Park on scenic soft trails, with a free kiddie run and a virtual option. Proceeds support the Never Stop Running Foundation.

A mountain trail event at Harriman State Park on April 3, 2027 offering a half marathon, a 10K and a 10K ruck on rugged technical trails with significant elevation gain. Entry is capped at 400 and proceeds support trail maintenance.

Sleeping Giant Trail Runs at Sleeping Giant State Park in Hamden CT features a 25K loop with 3K+ of vertical and a 50K two-loop option. The course mixes technical singletrack and carriage roads, includes aid stations, and follows a cupless..

The John Jay Community Trail Race will take place in Cross River on Sunday 4 April 2027. You can run 5 kilometers.