Trail Running calendar near South Orange 2025-2026

We have found 108 Trailruns within 80 miles of South Orange. See below where and when you can find the races.

Rob's Trail Run Edition is a trail running event held in Woodbury, New York, at Stillwell Woods Preserve. Scheduled for November 30, 2025, the event features two main races: a 5K Adult Trail Run for participants aged 19 and older, and a 5K..

December 2025

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 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..

The Febapple Frozen event is a trail running race held in South Mountain Reservation, Maplewood, New Jersey. Scheduled for February 21, 2026, it offers multiple distance options including a 50-mile, 50-kilometer, 20-mile, and 10-mile race...

March 2026

Event details Squatchapple takes place on March 7, 2026 in West Orange, New Jersey at the Tulip Springs Trailhead on Cherry Lane. The event offers the following distances: 50 miler 50K 20 Miler 11 Miler Registration closes on March 6 at 1..

Livingston Oval Ultra : March 7, 2026 The event in Livingston, NJ at Robert Harp Drive is a timed loop ultra on the town Oval. It is the third annual running and adds a 12-hour distance for 2026. Distances offered: 12 hours 6 hours 3 hours..

Take on MT TAMMANY 10 on March 21, 2026, a scenic yet demanding 40 mile trail ultramarathon near Delaware Water Gap with ten summit climbs and more than 10,000 feet of elevation gain. Ten repeated loops turn rugged mountain trails into a re..

Event overview The Enchanted Forest Ultra Run is a trail ultramarathon held at Roosevelt Forest, 700 Peters Lane, Stratford, CT. The event is offered as a 6-hour format and as a 50K distance. Field size is limited to 50 participants. Regist..

Take on the Terror of Tammany on March 22, 2026 in Worthington State Forest, Columbia NJ. Choose a challenging 30K or epic 50K+ over rugged 6.7 mile loops with big climbs, supportive finish awards, and a true mountain trail test.

The Morris County Empanada Trail Run, held in Morris Plains, NJ, offers both 5K and 10K run/walk events on scenic trails within Central Park of Morris County. The course features mixed terrain including dirt, grass, gravel, and some hills,..