Trail Running calendar near Williamstown 2025-2026

The Hainesport Endurance Run is a multi-day ultramarathon event held at Hainesport Township Municipal Park in New Jersey. The race features a flat, paved loop course of just under one mile, certified by USA Track & Field, with an alternate 1.2-mile loop available if needed. Participants can compete..

The Badgerpalooza will take place in Williamstown from Friday 17 October 2025 to Saturday 18 October 2025. You can run between 6 and 24 kilometers.

The Delaware Trail Fest, held at Lums Pond State Park in Bear, Delaware, is a trail running event celebrating the area's scenic outdoor trails. It offers multiple race options including 12 KM and 24 KM trail runs, as well as a 12-hour Lone Wolf solo challenge and a 12-hour 4-person relay. The course..

The MuleSkinner Endurance Races take place in Upper Black Eddy, Pennsylvania, featuring distances of 50 miles, 50K, marathon, and half marathon. The course primarily follows the scenic, non-technical towpaths along the Pennsylvania side of the Delaware River, offering beautiful views and an easy tra..

The 3rd Annual Chesterfield FALL Terrain 5K is a community-focused running event held at Fenton Lane Park in Chesterfield, NJ. Scheduled for October 19, 2025, the race features a USATF-certified 5K course combining gravel, trail, grass, and road surfaces, offering a varied terrain experience. The ev..

WXT Ultra, held in Washington Crossing Park, Titusville, NJ, offers 25K and 50K trail ultras through rugged single-track. The 25K course is mostly single-track with about 8.5 miles inside the park, with short road sections. The 50K adds a longer loop that travels into BaldPate, Pleasant Valley, Howe..

The Hot Mess Trail Races, held at Parvin State Park in Pittsgrove, NJ, offer a fun and challenging trail running experience with two main events: a half marathon and a 6-hour ultra. The course features a mostly flat, fast lollipop-style loop that is 95% trail, including twisty single-track, sand, an..

Forbidden Run Fest, staged by Uberendurancesports, takes place in Wissahickon Valley Park, Philadelphia, PA. The race offers 10K, 10 Miles, and a 13.1+ half-marathon option, all run entirely within the park's trail system. The course centers on Forbidden Drive, a smooth gravel and dirt trail with Mo..

NYC Trail Mix is an annual ultra trail running event held in Staten Island, New York, featuring distances of 50 miles, 50K, and a half marathon. The course showcases over 35 miles of trails through the greenest parts of New York City, including Blood Root Valley, High Rock Park, La Tourette Park, an..

The Tuckahoe 25K is an annual trail running event held in Queen Anne, Maryland, featuring a 25-kilometer (15.5 miles) course primarily on single-track and horse trails. The terrain includes runnable hills, some rooty and muddy sections, but is not overly technical, making it suitable for both newcom..

The South Vineland Thanksgiving Run is a cross country style race held annually at Anthony Campanella Park in Vineland, New Jersey. This approximately 3-mile event follows the well-known cross country course used by Vineland High School and the Vineland Grand Prix summer series. Open to runners and..

The 27th Milford Cross Country Booster Reindeer Stampede 5k is a festive running event held at Killens Pond State Park in Felton, Delaware. This 5k run/walk features chip timing with MYLAPS BibTag and offers competitive walking and running categories. Participants receive long sleeve tee shirts and..

MCW The Holmdel Classic is an end-of-year trail challenge held at Holmdel Park in Monmouth County, New Jersey. The course features a 4.65-mile loop (about 50K for 7 laps, halfish for 3 laps), 95% trail and double track, with 584 feet of elevation per lap and Holmdel’s signature “The Bowl.” Runners e..

Frosty Looper is an eight-hour ultramarathon at Cooper River Park in Pennsauken, NJ. Runners traverse a fast, flat 3.75-mile loop on a paved trail around the river, with views of the Philadelphia skyline. The course is mostly flat with a couple of gentle inclines and two real hills, making it one of..

Naked Nick takes place in Leesport, Pennsylvania, with race options of 25K and 50K along the trails at Blue Marsh Lake. The course runs on the lake's south side in a lollipop layout: 5.5 miles out, 4.5 mile loop, then 5.5 miles back, blending about 80% single-track trails with 20% gravel roads. Elev..

The Angela Ivory Memorial Runs is an annual trail running event held at Killens Pond State Park in Felton, Delaware. It features challenging distances including a 50K, 100-mile, and 24-hour race. The course consists of a roughly 3.1-mile mostly dirt loop within the park, with gentle terrain, minimal..

Naked Bavarian is a budget-friendly ultra-trail race held at Blue Marsh Lake in Leesport, Pennsylvania. It offers two distances: 20 miles and 40 miles, with a no/low swag ethos that skips expensive shirts, medals, and entertainment in favor of a solid course, dependable aid, and medical support. The..

HAT Run 50k takes place in Havre de Grace, Maryland, offering a challenging 50-kilometer trail race. The course blends mostly single-track trail with open fields, dirt roads, and a stretch of paved road, featuring nearly 4,400 feet of total climbing. Runners start with a 3-mile loop, then complete t..

The Rockland Rad Run is a trail running event held at Forever Farm in Mertztown, Pennsylvania, featuring a half marathon, 10k, and 5k distances. Set amidst the scenic Pennsylvania woods, the course offers a challenging experience through rolling, rugged terrain, ideal for trail running enthusiasts...

Philadelphia Trail Marathon, held in Wissahickon Valley Park in Philadelphia, offers a marathon and half-marathon on trail terrain. The 13.1-mile course is largely single-track with rolling hills, rocks, and roots; the 26.2-mile route covers similar terrain with added elevation. The atmosphere refle..