Trail Running calendar near Slatington 2025-2026

The Caldwell Cougar Chase XC 5K & 8K is a cross-country running event held at Garret Mountain Reservation in Woodland Park, New Jersey. Scheduled for September 26, 2025, it features a women's 5K and a men's 8K race on a rolling course that includes trails, hills, gravel, dirt paths, grass sections,..

Water Gap 50k and Half takes place in Milford, Pennsylvania, within the Delaware Water Gap National Recreation Area. The event offers 50K and 25K distances, with the McDade Trail serving as the course—a 32-mile point-to-point route through the Gap, mixing rail-trail cinder paths with rolling singlet..

Cedar Run's Trails, Tails & Ales is an annual 5K charity trail run held at Woodford Cedar Run Wildlife Refuge in Medford, New Jersey. The event features a scenic, exclusive trail course starting and ending at the Nature Center Pavilion. Participants receive a limited edition event t-shirt, light bit..

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

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) consisting of two loops, and a 10K (6.55 miles) with one loop. The course utilizes sections of the Little Jersey and Swamp Forest..

The NJ Trail Series One Day is a multi-day ultrarunning event held at the Sussex County Fairgrounds in Augusta, New Jersey. Scheduled from October 2 to 5, 2025, it features a variety of race options including 72, 48, 24, 12, and 6-hour timed races, as well as marathons and 50K distances. The course..

Red Barn Challenge, now in its sixth year, takes place October 3-4, 2025 at The Marzella Farm in Lykens, Pennsylvania. The event offers 24-, 12-, and 6-hour ultramarathon formats run on a one-mile, mostly grass and mulched loop around ponds and fields. The course gains about 70 feet of elevation per..

Blackout in Emmaus, PA, is a rugged nighttime trail running event hosted by The Running Kind. The main race is a challenging 10K course on South Mountain, featuring over 1000 feet of vertical gain through technical, mountainous terrain. Participants can choose to run the "Lights On" edition starting..

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

Trails4Tails is a running event held at Historic Washington Crossing Park in Titusville, New Jersey. The event features a 1 Mile Fun Run (with or without a dog), a 5K run, and a 5K run with a dog, all on wooded trails rather than paved paths, encouraging participants to properly train with their dog..

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 features a challenging 1-mile loop course with 300 feet of elevation gain, including steep climbs and technical, ro..

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

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

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 Costumed Creature Crawl 5K Trail Run/Walk is held at Van Scott Nature Reserve in Beach Lake, Pennsylvania, supporting Pregnancy and Infant Loss Awareness Month. Scheduled for October 11, 2025, participants can run or walk the 5K trail in person or virtually. The event welcomes all ages, with spe..

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 Cub Scout Pack 3254 Twilight Zombie Trail 5k & Monster Dash is a family-friendly fall event held at the Anthracite Outdoor Adventure Area in Coal Township, Pennsylvania. This spooky-themed 5K run challenges participants to outrun zombies on a twilight trail, with medals awarded to top finishers..

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..

The Hot Chili Challenge is a trail running event held in Andover, New Jersey, featuring an 8-mile trail run, a 5K run for adults, and a Kids Fun Run for ages 5-12. Participants in the adult races receive t-shirts, hobo bags, and finisher medals, while kids receive finisher medals. Awards and swag ar..