Trail Running calendar near Princeton 2025-2026

Ultra Trail DE is an exciting 10-hour trail running event set in Wilmington, Delaware, featuring a challenging ~6-mile loop with approximately 700 feet of elevation gain per lap. Participants can choose to run for a specific distance or continue for the entire duration. The course, located on privat..

The Farm & Forest All-Terrain 5K will take place in Stamford on Sunday 6 April 2025. You can run 5 kilometers.

The Rockland Rad Run Trail Fest is an exciting running event taking place at Forever Farm in Mertztown, PA, featuring a choice of 5k, 10k, or Half Marathon distances. Set against the backdrop of Pennsylvania's scenic woods, participants will navigate a rugged course filled with rocks, roots, and smo..

The Philadelphia Trail Marathon, set in the scenic Wissahickon Valley Park, offers runners a unique opportunity to experience over 50 miles of beautiful trails. Participants can choose between a full marathon (26.2 miles) and a half marathon (13.1 miles), both designed to celebrate the natural beaut..

The Spring SOMO Timed Trail Races is a running event scheduled for April 12, 2025, at South Mountain Reservation in South Orange, NJ. Participants can choose from various race formats, including a 3K loop, 6K loop, and timed events lasting 1, 3, or 6 hours. The course features a mix of single track,..

The Sterling Squatch Half Marathon, part of the Squatchywaska Mountainfest, offers participants a challenging and scenic experience through the stunning trails of the Shawangunk Ridge. With two course options—25K and 10 miles—runners will navigate rugged terrain, steep climbs, and breathtaking views..

The Wawayanda Trail Fest is an exciting running event taking place in Wawayanda State Park, NJ, featuring a variety of challenging trail distances including a 100K, 50 Mile, 50K, and Half Marathon. Participants will navigate through scenic routes filled with rhododendron tunnels, marsh bridges, and ..

The Schuylkill River 50k Relay & Ultra Marathon is a trail-based running event taking place in Mont Clare, PA. Participants can choose from various formats, including a solo 50k run, a 3-person relay, a 6-person relay, or a virtual/remote run. The course features a flat, paved trail that extends to ..

XTERRA New Jersey is an exciting off-road sports event taking place in Wawayanda State Park, New Jersey. Scheduled for May 3-4, 2025, it is part of the XTERRA World Tour and features a variety of races, including off-road triathlons, duathlons, and trail runs. Participants can choose from multiple d..

The Bear Mountain Trail Challenge will take place in Bear Mountain on Saturday 3 May 2025. You can run between 10 and 50 kilometers.

The Trails To the Sky 50k/10k is an exciting trail running event scheduled for May 3, 2025, at Voorhees State Park in Glen Gardner, NJ. Participants can choose between a 50k or a 10k course, featuring scenic trails with significant elevation gains of approximately 4500ft for the 50k and 900ft for th..

The VCP50k is an ultramarathon event taking place in Van Cortlandt Park, Bronx, NY. Established in 2023, this race is designed to be accessible for novice runners while still providing a challenge for experienced participants. The course consists of ten loops of a classic cross-country track, featur..

The MCW Branch Brook Classic is a running event taking place at Branch Brook Park in Newark, NJ, featuring 3 and 6-hour races. Set against the backdrop of the Cherry Blossom Festival, the course consists of a flat 2-mile loop made of soft regenerative rubber, ideal for both competitive runners and c..

Frosty Woods - a Winter Way over Yonder Trail Adventure is part of the 2023 Trail Run Series organized by Ready Set Go Adventures. This event features a variety of race distances, including a marathon, half marathon, 10K, and 5K, catering to runners of all skill levels. Participants can compete for ..

The Green Traill 5K is an annual running event taking place in Easton, Pennsylvania, on May 4, 2025. This event features a 5K run, a 2-mile untimed walk, and a Kids Fun Run, making it suitable for participants of all ages. The race is held at Easton Cemetery, promoting community engagement and suppo..

The Dirty German Endurance Fest is an urban ultramarathon held in Philadelphia's Pennypack Park, featuring a scenic course along Pennypack Creek. The event offers three race distances: 25K, 50K, and 50 miles, attracting over 600 runners each year. The course is designed to be accessible for trail ru..

The Dawn To Dusk To Dawn Track Ultras is an exciting running event taking place in Sharon Hill, Pennsylvania. Scheduled for May 10-11, 2025, the event features multiple race options, including a 24-Hour Run, a 12-Hour Run, a 50K Run, and a Virtual 50K Run. Participants can also contribute through do..

The "3 Days at the Fair" event in Augusta, NJ, scheduled for May 12-18, 2025, offers a variety of ultra-running challenges, including 144-hour, 72-hour, 48-hour, 24-hour, 12-hour, and 6-hour races, as well as marathon and 50K options. The course features a certified 1-mile loop composed of pavement ..

The Macho Trail Run is an exciting running event taking place at Stillwell Woods Preserve in Woodbury, NY. Scheduled for May 17, 2025, the event features two main races: a 5-mile Adult Trail Run for participants aged 19 and older, and a 5-mile High School or Youth Trail Run for those aged 18 and und..

The SMR Mayapple Trail Runs, taking place on May 17, 2025, in South Mountain Reservation, NJ, offers a variety of trail races including 50 miles, 50K, 20 miles, 10 miles, 5 miles, and a Kids 1-Mile Run. Organized by the South Mountain Conservancy and supported by local volunteers, the event features..