Trail Running calendar near Holmdel 2026-2027

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 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 ultramarathon in Prospect Park, Brooklyn offering 50 mile and 50 kilometer options. The course uses 3.33 mile loops and includes on course hydration and a potluck style aid station.

A loop-based trail event at Holmdel Park offering 50 km-ish, a Halfish option, and single laps on a varied, mostly off-road course with RFID lap timing and proceeds benefiting MissionCleanWater.

Experience a fast and flat end of year ultra at Cooper River Park. Run a paved 3.75 mile loop featuring views of the Philadelphia skyline and access to a fully stocked aid station throughout the day.

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 Livingston Oval where runners cover as many laps as possible in one, three, six or twelve hours on a USATF certified flat course, with aid stations and awards for top male and female finishers.

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..

A 5K trail run and walk at Bethpage State Park with a free kiddie run and virtual option. On-course hydration, post-race refreshments, age-group recognition, and proceeds support the Never Stop Running Foundation.

A community 5K run and free kiddie run on the soft trails of Bethpage State Park, supporting the Never Stop Running Foundation. The event includes in-person and virtual options, refreshments, bib mailing, and age-group recognition.

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.

A weeklong track ultramarathon at Cooper River Park with events from 6 hours to 144 hours on a USATF-certified 399.519 m track, chip timing, catered meals, vegan-friendly aid, and awards for milestone distances.

A 5K trail run and walk at Blydenburgh County Park in Smithtown, NY with mixed trail surfaces, dog friendly rules, on site amenities, live results and proceeds supporting Last Chance Animal Rescue.

A mountain obstacle race weekend at Mountain Creek Resort in Vernon NJ offering Sprint, Super, Beast and Ultra distances plus a Kids Race and spectator access.

A women only trail race at Lake Mohegan in Fairfield CT offering 5K, 10K and a 4 hour loop option. The event features finisher medals, podium awards, post race food and supports a local non profit.

The Leatherman's Loop will take place in Cross River on Sunday 25 April 2027. You can run 10 kilometers.