Trail Running calendar near Princeton 2025-2026

Squatchy Leftovers is a scenic trail festival on November 29, 2025 at South Mountain Reservation in West Orange NJ, with distances from a 50K to a kids mile on a rugged 5K loop. Expect technical singletrack, handcrafted wood medals and a ch..

Join Phoenixville's 16th annual Burn Off the Bird 5K on November 29, 2025, along the scenic Schuylkill River Trail. Run in person or virtually, grab a swag shirt and custom medal, and support local causes while enjoying a chip timed course.

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.

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.

Shake off the winter chill at the Chilly Trail Run 5K in Haverford on December 6. Enjoy scenic trails, a cozy long sleeve race shirt for pre registered runners and light post race refreshments.

Join Team Foster's Last Person Standing on December 6, 2025 in Conshohocken along the Schuylkill River Trail for a backyard ultra where runners tackle repeated 4.2 mile laps until only one remains. Expect camaraderie, grit, and a central ai..

Run the scenic 8.4 mile Loop Race in Philadelphia on December 7, 2025, tracing the Schuylkill River past the Art Museum and Boathouse Row. Not local? Join Loop Race Anywhere and run the distance anytime Nov 5 to Dec 7.

Run a timed 50 miles or 50 kilometers in Prospect Park on a scenic looped course near Lincoln Road. Community aid with Skratch Labs hydration and a potluck style aid station keeps you fueled across the day.

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.

Run a festive 3 mile loop along the Manayunk canal on Dec 13 and bring canned goods to support North Light Community Center. Try Brooks shoes, sip hot chocolate and show up in your most festive holiday gear.

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.

Challenge yourself at Frosty Looper, an 8 hour timed race around scenic Cooper River Park on December 14, 2025. Mostly flat paved loops with a few hills, aid at the start and finish, and every finisher receives a custom race item.

Naked Nick is a scenic trail race at Blue Marsh Lake near Leesport PA offering 25K and 50K distances on mostly single track with challenging climbs. Expect rustic trail conditions and gourmet post race fare from a chef and pastry chef.

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.

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.

Dress in your best onesie and tackle scenic trails at Squatchy Onesiefest in Ramapo Valley. Choose a fun 1.6 mile loop or a two lap 5K, enjoy trail support and a handcrafted finisher medal while supporting the NY NJ Trail Conference.

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..