Trail Running calendar near Princeton 2025-2026

The Summer Sundown Rundown at Kempton will take place in Kempton on Saturday 9 August 2025. You can run between 35 and 35 miles.

The JMC Running Co: Solo-Ultra Challenge will take place in Phoenixville on Saturday 9 August 2025.

The Interstate 17 - Closter, NJ will take place in Closter on Sunday 10 August 2025. You can run 17 miles.

The Route of Healthy Living 5k & BBQ Bash is a community-focused event held at Pleasant Valley Park in Basking Ridge, NJ. Celebrating its 5-year anniversary, the event features a 5K run/walk and a 1-mile health walk, welcoming participants of all fitness levels. The cross-country course includes a m..

The Thunder Chicken Squatch is a trail running event held at Stokes State Forest in Branchville, New Jersey. Scheduled for August 10, 2025, it offers multiple race distances including a challenging 17-mile run, a 10K, and a 5K, with additional 10K rucking divisions featuring lightweight (15 lbs) and..

The Hook Mountain Ultra is a challenging 51.7-mile trail run held in Upper Nyack, New York, featuring 10,928 feet of elevation gain. The course includes one 5.7-mile small loop followed by four 11.5-mile big loops, all starting and finishing at Nyack Beach State Park. Runners begin with a steep 1.6-..

The Dirty Dozen 50K is a challenging ultramarathon held in Forest Park, Queens, New York City. The race features a 2.5-mile loop along the scenic Orange Trail, completed 12 times for a total of 50 kilometers. Each loop includes 300 feet of elevation gain, making the course deceptively tough with rol..

The Run Brave 5k Run & 1 Mile Walk is held in Atglen, Pennsylvania, across from Octorara High School. This event features a 5k run and a 1-mile walk on Octorara's all-grass cross-country course, providing a unique natural terrain experience. Additionally, there are free kids' races for grades K-6 fo..

Raptor Ridge Presented by Peace, Love, Trails is a challenging 6.5-mile trail race held at the Westmoreland Sanctuary in Mount Kisco, New York. The course winds through the 669-acre nature preserve, which features 8.5 miles of hiking trails across three towns. The race starts and finishes at the Fox..

The USATF-NJ Open & Masters 5k Cross Country Championships is a competitive running event held at Natirar Park in Peapack Gladstone, New Jersey. Scheduled for August 24, 2025, this 5-kilometer cross country race features divisions for both open and masters athletes. It is part of the Paul Miller Aut..

The 8th Annual Run for Thorncroft is a community-focused event held at the Thorncroft Equestrian Center on its scenic 70-acre property in Malvern, PA. Featuring a 5K Trail Run, a 5K Walk, and a One-Mile Move-As-You-Please event, it welcomes participants of all abilities, including leashed dogs. The..

The Barn-B-Q Trail Festival will take place in Berkeley Heights on Saturday 30 August 2025. You can run between 3 and 6 miles.

The Run the Vineyards - William Heritage Labor Day 5K is held at William Heritage Winery in Mullica Hill, NJ. This event features a scenic 5K trail run primarily on manicured vineyard trails with rolling hills, welcoming all ages and walkers. Additional options include a 1 Mile Kids Race for ages 14..

The FallApple is a trail running event held in South Orange, New Jersey, at South Mountain Reservation. Scheduled for early September, the race offers a variety of distances including 5K, 10K, half marathon, marathon, 50K, and 50-mile options. The course features a mix of fire roads, single-track tr..

The Mountain Lakes Trail Run & Walk in Princeton, NJ, is a scenic event held at the Billy Johnson Mountain Lakes Nature Preserve, benefiting the Friends of Princeton Open Space. The event features a 5K+ trail run and a 3K walk, with the run course consisting of about 10% paved trails, 30% unimproved..

The Boulder Field 100 is a challenging trail running event held at Hickory Run State Park in Jim Thorpe, Pennsylvania. It offers three distances: 100K, 50K, and an 18-mile run/hike. The course features a figure-8 shaped 50K loop, with 100K participants running the loop twice.Runners encounter about..

The Run the Vineyards - White Horse 10K/5K is an annual running event held at White Horse Winery in Hammonton, New Jersey. Featuring both 10K and 5K races along with a 1-mile walk, the event offers a flat, scenic course through vineyards and country roads. Participants enjoy chip timing with instant..

The Wild Goose Trail Festival takes place at Wawayanda State Park in Hewitt, New Jersey, offering a variety of trail running events over September 20-21, 2025. Distances range from a 1-mile kids run to a challenging 100-mile ultramarathon with a generous 36-hour cutoff, making it ideal for first-tim..

The Front Runners New York Cross Country 5K is an annual running event held at Van Cortlandt Park in the Bronx, New York. Celebrating its 22nd year in 2025, the race offers a scenic 5K cross-country course through the park's fall landscape. Participants meet at the iconic Tortoise & Hare Sculpture f..

Ultra Trail DE is a challenging 6-hour trail running event held at 2900 Montchanin Road in Wilmington, Delaware. The race features a roughly 5-mile loop with about 700 feet of elevation gain per lap, set on private scenic trails that include creek crossings, singletrack paths, rolling hills, and uni..