Trail Running Calendar New Jersey 2025-2026

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..

Join the Winter Wonder Run 6K through the scenic trails of Institute Woods in Princeton on Saturday December 6, 2025. Enjoy a crisp cross country course with limited field size for a cozy, community race.

Warm up winter at the Morris Hot Cocoa 5K and 10K in Morris Plains, running grassy multi loop trails and enjoying a festive finish with hot cocoa, bundt cake and a finisher medal. Proceeds support St Jude Children's Research Hospital.

Challenge yourself at the Holmdel Classic, a scenic but hilly loop trail race in Holmdel Park with roots, rocks and steep climbs and options from a single 4.65 mile lap to multi loop ultras. Proceeds benefit MissionCleanWater.

Join the NJ Trail Series SOMO Winter 2 on Saturday December 13 in South Orange for scenic looped trail races through South Mountain Reservation. Choose 5K, 10K or 13.1 mile and enjoy hilly single track, a giveaway and day of registration.

Frosty Looper is an 8 hour timed run at Cooper River Park near Philly around a fast 3.75 mile loop with skyline views. Run as many laps as you can, enjoy aid station food and vegan options, bring a reusable cup, and take custom race swag.

Run the Last Supper 100k in Roxbury NJ on Dec 27, starting at Horseshoe Lake. Choose solo or relay teams up to 10 and tackle scenic trails and lakeside roads for a winter ultramarathon adventure.

Hit the trails at NJ Trail Series SOMO Winter 3 in South Orange with 5K, 10K or a half marathon on looped trails through South Mountain Reservation. Enjoy rolling hills, single track and fire roads, friendly aid stations and a giveaway at t..

Join the Frosty Fat Sass on Jan 31 in West Orange for a rugged trail fat ass fundraiser supporting South Mountain Conservancy. Choose a 5K, or timed 3 hour or 6 hour loop challenge with a rucking division and enjoy technical winter trails.

Try snowshoe racing at Mountain Creek on January 31, 2026 with a scenic ridge 5k or a relaxed one mile finish. Ride the lift to the top, bring your own snowshoes, and enjoy a fun winter run for all abilities.

Celebrate Valentine's Day in a cozy onesie at the Squatchy Onesiefest 5K in Mahwah Feb 14. Enjoy a flat scenic trail loop around Scarlet Oak Pond with a fun run option, handcrafted finisher medal and a limited field for a festive race vibe.

Febapple Frozen invites you to a winter trail challenge at South Mountain Reservation on Feb 21, 2026, with 10 mile loops and distances from 10 miles to 50 miles. Aid stations, official timing, event swag and awards for top finishers add ra..

Enjoy rugged woodland trails at the Mahlon Winter Donut Trail Run & Hike in Lake Hopatcong, NJ on March 1, 2026. Choose a 5 mile or 10 mile route through the Mahlon Dickerson Reservation for a true trail challenge in any weather.

Squatchapple in West Orange, NJ on March 7, 2026 offers 11, 20, 50K and 50 mile trail races over three scenic loops in South Mountain. Expect rugged singletrack, big climbs, handcrafted wood finisher medals and a fun trail festival vibe.

Tackle Mount Tammany 10, a scenic but rugged nearly 40 mile ultra of ten relentless loops in the Delaware Water Gap on March 21, 2026. Expect steep technical trails, big elevation gain, waterfalls and sweeping summit views.

Terror of Tammany! on March 22, 2026 in Columbia, NJ is a rugged looped trail challenge with 30K (three 6.7 mile loops) and 50K+ (five loops). Expect technical climbs, a campground start and finish, strict time limits, and finisher awards.

Join the Morris County Empanada Trail on March 29 in Morris Plains NJ with 5K and 10K runs over scenic mixed terrain. Entry includes a long sleeve shirt, finisher medal and an empanada with proceeds benefiting the Arthritis Foundation.

Take on the Fools Adventure, a 10 hour rogaine across roughly 8 square miles of North Jersey wilderness near Wayne, NJ on March 29, 2026. Solo navigation with map and compass and visits to over 100 checkpoints will test your route choice an..

Find your pace at the Spring SOMO Timed Trail Races in April at South Mountain Reservation, NJ, with options from a single 3K loop to 6 Hour timed runs. Enjoy a scenic 1.88 mile loop of single track, pavement and fire road.

Run a scenic 5K across farm trails at Screamin' Hill Brewery, then celebrate with craft beer, live music and food trucks. Walkers and all ages are welcome in this fun community race with free photos and a custom tech shirt.