Trail Running calendar near Closter 2026-2027

We have found 145 Trailruns within 80 miles of Closter. See below where and when you can find the races.

Experience a magical 13.1 mile trail race through the rolling hills of Roosevelt Forest. Complete eight loops of a wooded course while supporting a children's book drive in this unique costume friendly event.

Trail races at YMCA Camp Sloper on a roughly two-mile loop: a 400 minute time-limit event with loop counting and a four mile two-lap race, chip timing, a single aid station, cupless policy, and proceeds to local organizations.

Regional cross country meet in Holmdel on November 21, 2026 featuring multiple 5K races and a 3K youth race, with a standard entry fee of $45 and a team discount for groups of ten or more.

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..

A community Thanksgiving trail event on 11/26/2026 at Mill Pond Way Trail with a 3.5 mile run or walk, chip timing, post race yoga for participants, free water and snacks, and proceeds benefiting endometriosis research.

A community 5K run/walk through Inwood Hill Park with live results, free finish-line photos, awards for the top two men and women, and proceeds supporting the Inwood Food Pantry.

A ninth annual charity 5K in Roxbury, Connecticut on November 26, 2026, with a 3.1 mile out-and-back course near Everett B. Hurlburt Community Park. Proceeds support local ambulance and scholarship funds and a food pantry collection.

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.

December 2026

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.

Looped 50-mile and 50k races in Prospect Park, Brooklyn on December 6, 2026, run on 3.33 mile laps starting and finishing near the Lincoln Road Entrance. Hydration is provided by Skratch Labs and a 15 hour cut-off applies.

A looped trail race at Holmdel Park near Holmdel, New Jersey offering a roughly 50 kilometer option and a shorter Halfish race. Timing is by RFID, proceeds support MissionCleanWater, and there is an eight hour cutoff.

A weekend trail event in Blydenburgh County Park featuring a Backyard Ultra with 4.167 mile hourly loops and a separate 4.16 mile lapping race. A portion of proceeds supports the Long Island Greenbelt Trail Conference.

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.

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 January trail party using a 5K loop with three hour and six hour options plus a 3H ruck. Mixed carriage roads and technical singletrack, limited field size, and proceeds benefit the South Mountain Conservancy.

February 2027

A winter trail event at Ramapo Valley County Reservation on February 14, 2027 featuring a flat, scenic lollipop loop around Scarlet Oak Pond. Participants are encouraged to wear onesies; the event includes an aid station, finishers medal, a..

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.

Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.