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Trail Running Calendar near Jefferson 2026-2027

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Explore the top trail runs near Jefferson for 2026-2027! We've gathered 48 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

November 2026
A community 8K in Oak Ridge on November 15, 2026 with participant medals, defined age groups, and food and vendor stalls at Paradise Knoll School.
Mid-November cross country meet at Oak Ridge Park in Clark NJ with 400m, youth 3K, multiple 5K races including sanctioned high school competition, and an 8K championship.
A 5 miles lollipop loop trail race in Lewis Morris Park, Morristown NJ, run mostly on the Yellow Trail with roughly 600 feet of elevation gain. The event limits entries to 120 runners, uses cupless stations and hemp bibs, and offers free course pre..
Thanksgiving morning 5K and 1 mile walk at Rock Ridge Golf Course in Hackettstown, with shirts for the first 200, medals for all, and proceeds to student scholarships.
A multi-distance trail party at South Mountain Reservation with a looped 5K course, technical singletrack, varied elevation and aid stations offering gluten-free and vegan options.
December 2026
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 holiday 5K and 1-mile walk at ShawneeCraft Brewery on December 12, 2026, with chip timing, awards, a beanie, a beer, and post-race music.
Trail races of 3.1 mile and 6.2 mile in Morris Plains with cocoa, bundt cake, a limited shirt and a finisher medal; proceeds support St. Jude.
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.
A winter trail party in West Orange, New Jersey on a 5K loop with timed 3H and 6H options and a rucking division, fundraising for the South Mountain Conservancy.
February 2027
Onesiefest 5K is a onesie party trail event on Feb 14, 2027 at Ramapo Valley County Reservation with a flat scenic 5K loop and a 200 participant cap.
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
Timed-lap events at Livingston Oval on March 6, 2027 offering 12 hour, 6 hour, 3 hour and 1 hour races on a USATF certified flat course with awards and on-course aid.
A multi-distance trail event in West Orange NJ on March 6, 2027 using three marked loops, varied terrain, a staffed aid station, and support options for adaptive athletes.
A nearly 40 mile, 10 loop trail ultramarathon at Delaware Water Gap with over 10,000 ft of climbing and technical terrain around Mt. Tammany.
Trail event at Worthington State Forest on 21 March 2027 offering 30K and 50K+ on a 6.7 mile loop with steep climbs and a 12 hour limit.
Trail 5K and 10K at Central Park of Morris County with mixed terrain, a finisher medal, shirt, and an empanada plus awards by overall and age group.
April 2027
Chip-timed 15K and 5K at Shawnee Inn and ShawneeCraft featuring McDade Trail miles, finisher medals, race shirts, post-race brunch, music, and a beer ticket for participants.
Two-day Spartan Trifecta Weekend at Mountain Creek Resort with obstacle races from 5K to 50K across steep mountain terrain.
XTERRA New Jersey, Apr 24 and 25 2027, stages off road triathlon, trail runs, mountain bike and paddle events at Stokes State Forest.
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