Trail Running calendar near Spring City 2025-2026

Ultra Trail DE is a trail running event held in Wilmington, Delaware, on private scenic trails at 2900 Montchanin Road. The race features a challenging 6-hour format on a roughly 5-mile loop with about 700 feet of elevation gain per lap. The course offers a mix of creek crossings, singletrack, rolli..

The Conestoga Trail Run - 10 Tough Miles is a challenging and scenic trail race held annually in Holtwood, Pennsylvania. Known as the oldest trail run on the Conestoga and in the county for over 30 years, this 10-mile course features rugged, rocky terrain with steep hills, multiple small stream cros..

The Bear Trail Half Marathon & 10K is a trail running event held at Lums Pond State Park in Bear, Delaware. The race features two distances: a half marathon (13.1 miles) and a 10K (6.55 miles), both utilizing portions of the Little Jersey and Swamp Forest trails. The course offers a mix of single tr..

The Red Barn Challenge is an annual ultrarunning event held at Marzella Farm in Lykens, Pennsylvania. The 2025 edition marks its 6th year, featuring timed races of 24, 12, and 6 hours on a one-mile loop course composed mostly of grass and mulch, with about 70 feet of elevation gain per mile. The sce..

Blackout in Emmaus, PA, is a rugged nighttime trail running event hosted by The Running Kind. The race features a challenging 10K course on South Mountain, covering over 1,000 feet of vertical gain through technical, mountainous terrain. Participants can choose the "Lights On" option, starting at du..

Run-a-Muck is an annual 5K running and walking event held in the scenic Willistown countryside, supporting local land preservation efforts. Participants can choose to run the 5K or "muck" the cross-country trail, which features diverse terrain, encouraging appropriate attire. The event offers a fest..

The Fat Sass Switchback Challenge is a trail running event held in Millburn, New Jersey, at the South Mountain Reservation's Locust Grove Picnic Area. Scheduled for October 5, 2025, it offers three race options: a 5K, a 3-hour, and a 6-hour challenge. Participants run a 1-mile loop featuring a steep..

The Blues Cruise is a 50K trail ultramarathon held near Reading, Pennsylvania, celebrating its 20th anniversary in 2025. The 31-mile loop course circles Blue Marsh Lake, featuring varied terrain including fields, rolling hills, single track, and less than half a mile of public road. A notable challe..

The Lehigh Gap Nature Center 10k is a trail running event held in Slatington, Pennsylvania, featuring a challenging 10-kilometer loop course that starts and finishes at the Nature Center. The race showcases a variety of terrain, including a flat and fast start on the D&L Trail, a steep ascent on the..

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..

BadgerPalooza is an ultramarathon event held at Autumn Lake Winery in Williamstown, New Jersey. The main feature is a 24-hour race consisting of 24 consecutive 5K runs, starting at the top of each hour, totaling 74.4 miles. Participants can also choose 12-hour or 6-hour races, with individual or rel..

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 stunning views and an easy trai..

The WXT Ultra is a trail running event held in Titusville, New Jersey, starting and finishing at Washington Crossing Park. It offers two distances: a 25K and a 50K. The 25K course features mostly single-track trails, including an 8.5-mile section within the park and short road segments.The 50K begin..

The Long Run - Fall Back is a trail running event held at Jacobsburg State Park in Wind Gap, Pennsylvania. Participants can choose from a 5-mile loop, a 3-hour, or a 6-hour timed event, running a course featuring approximately 450 feet of elevation change on a mix of single track and gravel trails...

Forbidden Run Fest is a trail running event held in Wissahickon Valley Park, Philadelphia, PA, known as the city's most beautiful park with over 2,000 acres and 50 miles of trails. The race offers three distances: 10K, 10 miles, and a Half Marathon+ (approximately 14 miles). The course features a mi..

NYC Trail Mix is an 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, and the F..

The Hex Hollow Half is a trail running event held in Glen Rock, Pennsylvania, starting and finishing at Spring Valley Park. It offers two distances: a challenging half marathon of 13.13 miles consisting of two loops, and a shorter 6.66-mile single loop for those not ready for the full distance. The..

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 Holmdel Classic is a challenging end-of-year trail race held in Holmdel Park, Monmouth County, New Jersey. Featuring a 4.65-mile loop with 584 feet of elevation gain, the course covers diverse terrain including grass, dirt, rocks, roots, gravel, pavement, and varied inclines. Participants can ch..