Trail Running calendar near Princeton 2026-2027

Trail event at Mahlon Dickerson Reservation on March 1, 2026 offering 5 mile and 10 mile routes over rugged woodland trails. Participants receive a long sleeved shirt, a medal, and donuts; hikers are welcome.

Choose between two trail distances on this early March run: a quirky ‘Half-Wit Half’ Marathon or its shorter Quarter-Wit sibling. The event starts and finishes at the Reading Liederkranz Club in Pennsylvania.

Squatchapple Trail Race The Squatchapple is a trail running and hiking event held at the South Mountain Reservation in West Orange, New Jersey. It offers four distances: an 11-mile, a 20-mile, a 50K, and a 50-mile race. The course consists..

Naked Bavarian The Naked Bavarian is a trail run event at Blue Marsh Lake in Leesport, PA. It describes itself as a "no/low swag" event, focusing on affordable entry fees by omitting expensive items like race shirts and finisher m..

Traverse the historic Lenape Trail on a 34 mile, self-supported run from Newark to South Mountain Reservation. The route offers diverse urban and natural scenery, from city parks to mountain lookouts. Participants are responsible for carryi..

The 14th annual Looney Leprechaun Trail Races offer a half marathon and a 10K on the trails of Tyler State Park. The event features age group awards and a t-shirt for early registrants. It's organized by trail runners for the trail running..

This 5K trail run at Bethpage State Park offers a scenic, mostly flat course through the park's soft trails. Participants receive a themed shirt and can enjoy post-race refreshments, including a free beer for those 21+. The event supports t..

The Big Woods Half Marathon & 10k takes runners through the tough trails of French Creek State Park. The half marathon course features significant elevation and rocky terrain, while the 10k offers a shorter loop. Both events start and finis..

The Mt. Tammany 10 is a grueling 40-mile ultramarathon in New Jersey's Delaware Water Gap. Runners complete ten loops, each climbing over 1,000 feet to the summit of Mt. Tammany. This event promises tough, technical terrain with mountain vi..

The R.A.T. Race offers three trail distances on March 21, 2026, in Waretown, NJ. It's a professionally timed event with food and awards, happening rain or shine.

Conquer the trails at Worthington State Forest in this arduous 30K or 50K+ event. Runners tackle a technical 6.7-mile loop with significant elevation. Finishers of both distances earn a commemorative award.

Run the historic 34-mile Lenape Trail from Newark to Millburn, traversing 18 parks. Choose to go solo or as a relay team, with full support including aid stations and shuttles. This charity event supports MissionCleanWater's work to provide..

A tenth annual trail event in Spring City, PA on March 28, 2026 offering a 5K run and a 5K hike over dirt trails, gravel roads and short paved sections above French Creek. Proceeds support summer camping programs and scholarships.

Trail 5K and 10K events in Central Park of Morris County on March 29, 2026, featuring mixed-terrain cross country courses. Entry includes a long-sleeve shirt, finisher medal, and an empanada with a vegetarian option.

The Fool's Adventure is a ten hour foot rogaine on March 29, 2026 in Wayne, New Jersey. Competitors navigate more than 100 checkpoints across eight square miles of rugged wilderness using maps and a compass while recording checkpoint eviden..

This trail race offers a rugged 10k course through historic Van Cortlandt Park in the Bronx. A free Kids Fun Run is also part of the event. Part of the registration fee supports local trail maintenance and youth programs.

The Montchanin Trails 5K is a trail run on March 29, 2026, at Longwood at Granogue in Wilmington, DE. The 5K course features single-track trails, hills, and varied terrain. Registration is limited to 300 participants and includes a t-shirt..

Tackle the rugged trails of Harriman State Park in this mountain trail run. Choose between a challenging 10K with 1,400 feet of climb or a half marathon with over 2,600 feet. The event supports local trail maintenance and includes a rucking..

Timed loop trail races at South Mountain Reservation in South Orange on April 4, 2026. Options include a 1.88 mile loop, a 6K two loop option, and 1 hour, 3 hour and 6 hour timed events.

The Long Run - Spring Forward offers trail runs in Jacobsburg State Park. Choose from a 5-mile loop, a 3-hour, or a 6-hour timed event on mixed terrain. It's a cupless, eco-conscious event supporting the local environmental center.