Trail Running calendar near Clayton 2026-2027

A historic Schuylkill Navy road and cross country race covering 5 and 5/8 miles of hilly and grassy terrain along Kelly Drive and Belmont Plateau. Club eligibility, multiple age divisions, team scoring, posted results and an on site awards..

A Thanksgiving morning 5K at Eastern Regional Park in Middle River with two laps on mixed paved and natural trails; open to all ages, $15 registration fee.

The Fifth Street Cross 100 will take place in Emmaus on Friday 27 November 2026. You can run between 10 and 100 kilometers.

A community 5k run/walk and a separate competitive walking 5k at Killens Pond State Park on November 28, 2026. The event supports Milford High School Cross Country and features chip timing, awards, shirts, and post race refreshments.

A trail 6K through Institute Woods with a non-competitive 3K option for paces over 15 minutes per mile. Registrations are limited to 200, a fee applies, and post-run refreshments are provided.

Trail loop event at Holmdel Park with roughly 50 km and halfish options over repeated 4.5 mile laps; proceeds benefit MissionCleanWater.

Experience a fast and flat end of year ultra at Cooper River Park. Run a paved 3.75 mile loop featuring views of the Philadelphia skyline and access to a fully stocked aid station throughout the day.

Naked Nick is a low-fee winter trail run at Blue Marsh Lake offering 25K and 50K on rolling single-track and gravel. Aid every 3 to 4 miles, manual timing, and a traditional German-style finisher memento.

An 11K trail run in Reading PA on January 3 2027 featuring technical terrain, two aid stations, on site EMS, awards and variable winter conditions.

Experience the rolling hills of Fair Hill Natural Resource Management Area during this winter trail event. Choose between 25K or 50K distances on beautiful single track trails with heated facilities and fully stocked aid stations.

A 10 mile trail race at French Creek State Park on February 7, 2027 featuring rocky trails, two water stops, tiered entry fees and awards across age and clydesdale categories.

A back-to-basics trail event at Blue Marsh Lake on March 6, 2027, offering 20 and 40 mile single-track courses with aid stations every three miles and a lollipop course layout; the 40 mile is two loops with drop bag access at mile 20.

The Rat Race 50k is a 100% off-road ultramarathon at Wells Mills Park with an 8-mile loop plus three 10k loops, chip timing, finisher medals and age-group awards; the series also includes shorter trail races and themed events.

A spring trail 50K at Susquehanna State Park with two identical loops, about 4,300 feet of climbing and several stream crossings, supported by aid stations and volunteers.

A reborn six day track ultrarunning event at Cooper River Park offering timed events from six hours up to 144 hours.

A turtle themed 5K at Hopkins Farm Brewery in Havre De Grace raising funds and awareness for the Susquehannock Wildlife Society. The trail race includes wooden participant medals, costume prizes, and an after party with live music.

A trail marathon and half marathon in Wissahickon Valley Park on April 10, 2027, featuring technical single track trails and significant climbing. The event includes race day bib pickup, live accordion music and a post race pizza party.

Trail races and a team ultra relay on private singletrack at Forever Farm near Mertztown, PA, with stocked aid stations, camping, and cash prizes for relays.

A multi-distance event in Lewes, Delaware with 5K, 10K and half marathon options plus race walk and heavy march categories. The weekend includes an educational exhibit, vendors and live music while supporting wounded warriors and homeless v..

ChesLen Chase on 05/08/2027 in Coatesville PA features a 5K trail run and a 2-mile fun run-walk, youth categories, member discounts, and a post-race party with music, craft beer, food truck fare, and awards.