Trail Running calendar near Princeton 2025-2026

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.

Take on the Naked Bavarian at Blue Marsh Lake in Leesport PA on March 7, 2026 with 20 mile or 40 mile trail options over scenic single track and gravel. A low cost ultra with aid stations and a chef prepared post race spread.

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.

Take on the Livingston Oval Ultra in Livingston NJ on March 7, 2026 with 1, 3, 6 or new 12 hour timed lap options on a fast, flat USATF certified course. Friendly aid stations, custom awards and a loop made for high mileage await.

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.

Run the Morris County Empanada Trail at Central Park in late March, choose a scenic 5K or 10K over mixed terrain and hills. Finishers get a long sleeve shirt, medal and an empanada with vegetarian options.

Run rugged trails at Big Bear Squatch North in Harriman State Park on April 4, 2026 with half marathon, 10K and ruck divisions. Expect steep climbs, scrambling terrain and sweeping Hudson Valley and NYC skyline views.

The Long Run at Jacobsburg State Park is a scenic 5 mile loop with Spring Forward and Fall Back editions. Choose a 3 hour or 6 hour challenge and rack up laps on mixed single track and fast gravel; this cupless event is self supported.

Tackle technical single track and rolling hills in Wissahickon Valley Park with half and full marathon options. Race benefits Houston Playground youth programs and rewards every finisher with a Philly themed medal.

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 rugged technical trails at Rockland Rad Run in Mertztown with marathon, half, 10k and 5k options. Enjoy scenic rolling terrain, Saturday off road mountain bike fun and free campsite options for a full weekend outdoors.

Run or stroll Matzah Miles on a scenic family friendly trail in Medford with a timed 5 km, one mile family walk and Kids 50 Yard Dash. Enjoy music and matzah treats while supporting inclusion through Open Hearts Open Doors.

Take on Wawayanda Trail Fest at Wawayanda State Park, offering distances from half marathon to 100K. Run through rhododendron tunnels, marsh bridges and single track on a scenic 26 mile loop with friendly aid stations.

XTERRA New Jersey is an off-road multisport event held at the scenic Wawayanda State Park, featuring over 40 miles of trails and a clear lake. Part of the XTERRA World Tour, it offers a variety of races including trail runs (5K to 42K), gra..

Challenge yourself at VCP50k, a scenic but rugged 50k ultramarathon in the Bronx on May 2, 2026. Ten loops of classic cross country trail bring rocks, roots and rolling climbs with stocked aid stations, a custom finisher singlet and post ra..

Join the 5th annual Green Traill 5K on Sunday, May 3, 2026 at Easton Cemetery for a spirited 5K, a community walk, and a Kids Fun Run for ages 10 and under. Organized entirely by volunteers, the event benefits Friends of Historic Easton Cem..

Run the Dirty German Endurance Fest in Philadelphia on May 9, a figure 8 ultra through shaded Pennypack Park with 25K, 50K and 50 mile options. Enjoy creekside trails, live accordion music at finish plus German prizes and finisher swag.

Run a looped, lit course at the Sussex County Fairgrounds during a weeklong festival offering distances from marathon and 50K to multi hour timed events. Enjoy aid stations, camping and showers plus a live lap display and buckle awards.

Trails To the Sky at Voorhees State Park features a scenic, looped 50k UTMB Index race and a rolling 10k. Expect big climbs, aid stations, on course support and custom medals for all finishers.