Trail Running calendar near Princeton 2026-2027

A trail 5K at Autumn Lake Winery in Williamstown, NJ on Thanksgiving morning with dirt, grass, and sand underfoot. Awards for the top three male and female finishers, free entry for kids 14 and under, and a portion of proceeds support Lucky..

A cross country style 3 miles race at Anthony Campanella Park in Vineland, NJ, welcoming runners and walkers of varying ages. Awards for top overall finishers and multiple age groups; online registration with several payment options.

A 5K run and walk through Inwood Hill Park in northern Manhattan with a shared start and finish, live results and free finish line photos. Proceeds benefit the Inwood Food Pantry and awards are given to the top two men and women.

A historic Schuylkill Navy road and cross country race covering 5 and 5/8 miles of hilly and grassy terrain along Kelly Drive and Belmont Plateau. Club eligibility, multiple age divisions, team scoring, posted results and an on site awards..

FSX Black Friday 100 is a one-day ride and run on the Fifth Street Cross course in Emmaus, offering distances from 10k to 100 miles plus relay and mixed run and ride options. Entry is $25 plus a 6-pack or a $20 prize pot contribution.

A trail party at South Mountain Reservation offering looped 5K terrain and distances from Kids 1M to 50K. The course mixes carriage roads and technical singletrack and features an aid station at the start finish and a charity partner.

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.

Naked Nick is a low-fee winter trail run at Blue Marsh Lake offering 25K and 50K on rolling single-track and gravel. Aid every 3 to 4 miles, manual timing, and a traditional German-style finisher memento.

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.