Trail Running calendar near Sussex County 2026-2027

We have found 143 Trailruns within 80 miles of Sussex County. See below where and when you can find the races.

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.

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.

December 2026

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.

January 2027

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.

February 2027

The Squatchy Onesie Fest “5K-Marathon” will take place in Mahwah on Sunday 14 February 2027. You can run 5 kilometers.

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.

March 2027

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.

The Squatchapple - West Orange, NJ will take place in West Orange on Saturday 6 March 2027. You can run between 11 and 50 miles.

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.

April 2027

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 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.

Two trail events, 25K (about 17 miles) and 10 miles, on technical singletrack and crushed gravel around the Shawangunk Ridge near Ellenville NY. Routes feature steep climbs, two aid stations, a six hour cutoff and a 150 runner cap.

Squatchywaska Mountainfest in the Shawangunk Ridge on April 24, 2027 features a technical 25K and a 10 mile lollipop course with steep climbs, rocky singletrack, two aid stations, and a six hour cutoff.

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