Trail Running calendar near Morris Plains 2025-2026

We have found 98 Trailruns within 80 miles of Morris Plains. See below where and when you can find the races.

Join the Roxbury Thanksgiving Day Charity Race for a festive 5K through Everett B. Hurlburt Community Park. Support local causes and burn off holiday calories with friends and neighbors this Thanksgiving morning.

Fifth Street Cross - Black Friday 100 is a quirky endurance event in Emmaus, Pennsylvania on the Fifth Street Cross course. Participants choose from 10k Run/Walk (4 laps), 13-mile Half Marathon (8 laps), 26-mile Marathon (16 laps), 50k Run..

NSRF Leftover Turkey Trot 5K at Bethpage State Park (Polo at the Park) offers a 5K Run/Walk on grassy polo-field and scenic trails, with mostly flat, beginner-friendly terrain and some rolling sections reminiscent of cross-country. The even..

Event details The Squatchy Leftovers is a trail race on Saturday, November 29, 2025, at South Mountain Reservation, 374 Walker Road, West Orange, NJ. Distances offered include: 50K - 10 loops 25K - 5 loops 10K - 2 loops 5K - 1 loop 1 Mile..

Join the Never Stop Running Foundation 50/50 Turkey Trot, a scenic trail 5K at Belmont Lake State Park on November 30. Half of net proceeds are raffled to participants with winners present and the rest supports the foundation.

Take on a crisp late November trail at Stillwell Woods Preserve in Woodbury on November 30, 2025. Rob's Trail Run Edition features a scenic 5K with separate adult and high school youth divisions for runners of all levels.

December 2025

The Chilly Trail Run will take place in Haverford on Saturday 6 December 2025. You can run 5 kilometers.

The Santa's Summit 10k is a scenic and challenging trail run held at Bull Run Marina in Clifton, Virginia. The course follows the Bull Run Occoquan Trail, featuring hilly terrain with a mix of out-and-back and one-way sections. Participants..

The Team Foster's Last Person Standing will take place in Conshohocken on Saturday 6 December 2025. You can run 4 miles.

The Loop Race, Philadelphia’s oldest running event, unfolds on an 8.4-mile loop around the Schuylkill River, starting and finishing near Boathouse Row in Philadelphia, PA 19130. Since 1971, it has become a local favorite with a flat course..

Event overview The PPTC Endurance Fest takes place in Prospect Park, Brooklyn, NY on Sunday, December 7, 2025. The event offers two distance options: 50 Miler 50k Registration closes on Thu, December 4 at 11:59 PM ET. Course and event ser..

SRC Presents: A Backyard Ultra takes place at Blydenburgh County Park in Hauppauge, NY on December 13–14, 2025. The event features two races: A Backyard Ultra, a true ultramarathon where runners must complete a 4.167-mile loop within an hou..

Event overview The Frosty Forest 5K takes place in Roosevelt Forest in the Town of Stratford, Connecticut on Saturday, December 13, 2025. The event is a trail run over a 5K distance. Participants may wear holiday costumes during the event...

Event overview MCW The Holmdel Classic is a trail race held on December 13, 2025, at Holmdel Park in Monmouth County, New Jersey. The event offers loop-based distances on a multi-lap course: Loop: 4.65 miles Halfish : 3 loops 50 kmish : 7..

Rudolph Run in Manayunk, Philadelphia, is a festive 3-mile fun run along the Manayunk canal path. The course starts at the Manayunk Bridge Pocket Park, with check-in at 4358 Main Street. Participants are invited to dress in holiday attire—l..

South Orange, New Jersey hosts the NJ Trail Series SOMO Winter 2 on Saturday, December 13, 2025. The event offers three distances: 5K, 10K, and 13.1 miles, run on a looped course through South Mountain Reservation. The course blends fire ro..

Event details Frosty Looper is an 8-hour timed running event on Sunday, December 14, 2025, held at Cooper River Park in Pennsauken, NJ. Registration fees change by date: $90 until 6/1/25, $100 until 10/1/25, and $110 thereafter until regist..

January 2026

Join the Frosty Fat Sass at South Mountain for scenic yet rugged trail running and hiking with a 5K or 3 and 6 hour options on rocky, rooty singletrack. This self supported fundraiser benefits the South Mountain Conservancy.

February 2026

The Mahlon Winter Donut Trail Run & Hike is a scenic trail running event held at Saffin's Pond in the Mahlon Dickerson Reservation, Lake Hopatcong, New Jersey. Scheduled for February 8, 2026, it offers three race distances: a 5-mile loop, a..

Event overview The Squatchy Onesiefest 5K is scheduled for February 14, 2026 at Ramapo Valley County Reservation, starting and finishing at the New York-New Jersey Trail Conference (NYNJTC) Headquarters. The event has a onesie theme; awards..