Trail Running calendar near Princeton 2026-2027

A technical mountain trail event in Norvin Green State Park near West Milford, NJ, offering a 50K, 10 Miler and 5 Miler with substantial elevation gain, mandatory 50K gear, cupless aid stations and a one-dollar carbon offset added to regist..

Experience the scenic beauty of the Brandywine Valley through forests and farmland. Choose between 10k, 25k, and 50k distances in this part of the USATF Mid Atlantic Off Road Series.

Trail marathon and 15-mile trail race at Bethpage State Park on May 17, 2026. Registration opens Feb 23 and a portion of proceeds supports the Long Island Greenbelt Trail Conference.

A weekly cross country series offering thirteen 5K races on Tuesday nights from April to July. The event takes place at Central Park in Parsippany and is open to all ages and abilities. Participants can register for the full series or pay f..

A four mile cross country race in Riverdale and Van Cortlandt Park with an informal kids fun run, finisher hat, awards for top finishers and masters, and post race refreshments; proceeds benefit the FDNY Foundation.

Tough Mudder Philly at Plantation Field on May 23, 2026 offers 15K and 5K obstacle courses, an Infinity lap option, and spectator access across rolling hills and muddy terrain. Finishers receive medals, a shirt, a headband, and a finisher d..

A four mile road and trail race in Forest Park with start and finish at Victory Field track. The event is limited to 500 entrants, includes chip timing, technical shirts for pre-registrants, finisher medals, cash awards and age group trophi..

A trail and road mix half marathon and an all trail 5K centered at Sleepy Hollow Athletic Club. Both races run largely on the Horse Shoe Trail and support Berks County Special Olympics.

A weekly cross country series offering thirteen 5K races on Tuesday nights from April to July. The event takes place at Central Park in Parsippany and is open to all ages and abilities. Participants can register for the full series or pay f..

Six 5K cross country races take place at Van Cortlandt Park from May 28 to July 30, 2026, on the classic Tortoise and Hare course. The final three evenings include free half mile kids runs, weekly awards and post race raffles.

ENDURE Last Man Standing in Bethpage State Park asks runners to repeat a fixed 4.2 mile loop each hour; finish within the hour to continue. Laps continue with progressively shorter cutoffs until one runner remains or the event window ends.

The Tatum Classic is an inaugural trail race at Tatum Park in Middletown Township, NJ, run on a 4.75 mile repeatable loop with 1 lap, 30 kmish and 50 kmish options. Proceeds support MissionCleanWater's sustainable clean water projects.

A weekly cross country series offering thirteen 5K races on Tuesday nights from April to July. The event takes place at Central Park in Parsippany and is open to all ages and abilities. Participants can register for the full series or pay f..

A summer half and full marathon through shaded sections of Pennypack Park alongside Pennypack Creek, with disposable chip timing, multiple aid stations, finisher medals and a German-themed post race party at Ed Kelly Amphitheater.

A non-profit, ninja-warrior style obstacle course run in Mullica Hill, NJ featuring a roughly 4-mile course with 12 tiered obstacles, team scoring by obstacle tiers, and proceeds supporting clean water projects.

A non competitive group run along the D&R Canal Towpath with paced "trains" and multiple distances. The event benefits the Rutgers Cancer Institute with a $0.50 donation per mile and offers bus starts and a picnic option.

A road and trail event at Rockwood Hall in Rockefeller State Park Preserve featuring a 10K and a 1K kids race. The course follows wide carriage roads with Hudson River views and wooded sections, and proceeds support carriage road maintenanc..

A free, timed 5K trail run at Crystal Lake Park on June 6, 2026, with a technical course of about 300 feet of elevation gain and a 40-runner field limit. Awards and a midway water station are provided.

A trail event in Wissahickon Valley Park on June 6, 2026 offering a 10K race and a 1 mile family nature walk. Proceeds support Friends of the Wissahickon for trail and watershed stewardship.

Paired 5K paved loop and 10K mountain trail at Rockland Lake State Park in Valley Cottage, NY. The 5K is a flat, fully accessible lake loop; the 10K climbs about 1,300 ft on rocky, steep terrain and includes one aid station.