Trail Running calendar near Morristown 2025-2026

We have found 82 Trailruns within 80 miles of Morristown. See below where and when you can find the races.

Celebrate the season at Santa’s Summit trail races at Bull Run Marina in Clifton VA on December 6 with 5k and 10k courses plus a virtual option. Chip timed finishers receive a medal and technical shirt while supporting Dulles South Soup Kit..

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 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.

PPTC Endurance Fest brings 50 mile and 50 kilometer looped races to Prospect Park Brooklyn, with community potluck aid stations and Skratch Labs hydration. Take on the laps and chase a coveted 50 mile finisher buckle.

Run the Tough Cookie 8K at Sunken Meadow State Park on Dec 7, 2025 for scenic trails and Long Island Sound views plus a holiday cookie fest. All paces welcome and net proceeds support local charities.

Warm up your winter running at the Morris Hot Cocoa 5K and 10K in Morris Plains, NJ, a scenic grassy trail with rolling hills and postrace hot cocoa. Finishers get a medal and long sleeved shirt while proceeds support St. Jude Children's Re..

Join the Frosty Forest 5K in Stratford CT on December 13 for a festive off road run through Roosevelt Forest. Run, jog, hike or walk in holiday costumes, enjoy winter trails, and support local causes.

Take on the Holmdel Classic in Holmdel Park for a rugged trail challenge: choose the 50 km ish or the Halfish over multi lap loops that wind through roots, rocks and The Bowl. All proceeds support MissionCleanWater.

Test your limits at SRC Presents: A Backyard Ultra in Blydenburgh County Park. Run 4.167 mile loops each hour until only one runner remains, or try The 1 Lapper for a single loop. Proceeds support the Long Island Greenbelt Trail Conference.

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.

Enjoy a scenic trail challenge in South Mountain Reservation with looped 5K, 10K or 13.1M options over fire roads, single track and rolling hills. Aid stations are spaced about every three miles and participants receive a giveaway.

Celebrate the season at the Minty Miler in Jim Thorpe on Saturday December 13, 2025. This family friendly one hour run or walk loops Penn Forest Park with minty treats, mugs while supplies last, and age group awards.

Frosty Looper invites you to an 8 hour timed loop at Cooper River Park, with views of the Philadelphia skyline and the lake. Run as many 3.75 mile laps as you can in this friendly winter endurance challenge.

Set sail for Blackbeard's Bounty Endurance Race in Pennsburg PA on December 20, 2025, and tackle timed 4 hour or 8 hour looped runs on scenic gravel trails. Enjoy pirate themed fun, post loop grog, and a race shirt and medal.

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.

January 2026

Hit the trails at South Mountain Reservation on January 10, 2026 for NJ Trail Series SOMO Winter 3, with 5K, 10K and 13.1 mile looped courses over hills and single track. Aid stations, on site registration and a giveaway add winter race day..

Join the ninth annual Frosty Fat Sass at South Mountain Reservation, a fundraiser for the South Mountain Conservancy. Choose a 5K, timed 3 or 6 hour loop or rucking division on a rugged, rocky 5K trail.

Hit the trails at the YETI OR NOT Snowshoe Invasion at Mountain Creek on January 31, 2026. Ride the lift to the top for a scenic 5k or untimed last mile welcoming runners, walkers and first time snowshoers. Bring your own snowshoes.

February 2026

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.

Run the Squatchy Onesiefest 5K on Feb 14, 2026 in Mahwah NJ, a flat, scenic trail loop around Scarlet Oak Pond with a shorter fun run option. Wear a onesie for award eligibility and help support NYNJTC trail maintenance.