Trail Running calendar near Thornton 2026-2027

A trail ultrarunning festival in Pennypack Park offering 25K, 50K and 50 mile loop races with German-themed aid stations, post-race food and music, and traditional German awards.

Test your endurance at this IAU Bronze Label event on a certified 400 meter track in Sharon Hill. Choose from 12 or 24 hour timed races and 50K distances in a cupless and supportive environment.

Trail races at Cromwell Valley Park include 25k, 12.5k and a family 5k with mile-marker activities. Proceeds benefit the Gunpowder Valley Conservancy, Cromwell Valley Park and TALMAR.

ChesLen Chase in Coatesville is a Natural Lands event offering a 5K trail run and a 2 mile fun run walk, youth pricing, member discounts, and a post race gathering with music, craft beer, food trucks, and awards.

The 20th annual Run for the Woods in Piscataway is a single-loop 5k through shaded trails at the Rutgers Ecological Preserve, with proceeds supporting forest restoration and student ecology groups; prizes include shoes and native plants.

A four-date series of 10K trail runs in the Pickall Area of Patapsco Valley State Park from May 6 to May 27, 2026, with running time results and options to enter single dates or the full series.

Trail races at Voorhees State Park include a 50k (five laps) and a 10k, with roughly 4,500 ft and 900 ft of elevation gain. The course is marked, has aid stations, onsite amenities, and race day registration.

Trail races at Kelly's Run Nature Preserve in Holtwood on May 16, 2026 include chip timed 10K and 5K courses plus a free kids trail race of about 1.5 miles. The 10K features 1,256 feet of elevation and an aid station at Pinnacle Overlook.

A morning 5K held during the Fair Hill Scottish Games on May 16, 2026, with a $40 entry that includes game admission; on-site cash entries and ATMs are available, and cash prizes plus a trophy and Scottish claymore are awarded to top finish..

Experience the scenic beauty of the Brandywine Valley through forests and farmland. Choose between 10k, 25k, and 50k distances in this part of the USATF Mid Atlantic Off Road Series.

A four-date series of 10K trail runs in the Pickall Area of Patapsco Valley State Park from May 6 to May 27, 2026, with running time results and options to enter single dates or the full series.

Tough Mudder Philly on May 23, 2026 at Plantation Field offers 5K, 15K and Infinity obstacle runs with named obstacles, finisher items, spectator festival access, and group and volunteer options.

A trail and road mix half marathon and an all trail 5K centered at Sleepy Hollow Athletic Club. Both races run largely on the Horse Shoe Trail and support Berks County Special Olympics.

A four-date series of 10K trail runs in the Pickall Area of Patapsco Valley State Park from May 6 to May 27, 2026, with running time results and options to enter single dates or the full series.

Half and full marathons on a shaded paved bike trail along Pennypack Creek in Philadelphia. Aid stations, disposable chip timing, finisher medals and a Bavarian themed post race party with snacks and nonalcoholic beer included.

A non-profit, ninja-warrior style obstacle course run in Mullica Hill, NJ featuring a roughly 4-mile course with 12 tiered obstacles, team scoring by obstacle tiers, and proceeds supporting clean water projects.

A non competitive group run along the D&R Canal Towpath with paced "trains" and multiple distances. The event benefits the Rutgers Cancer Institute with a $0.50 donation per mile and offers bus starts and a picnic option.

Experience a timed ultra marathon on technical single track trails in the Blue Mountains. Run as many 3.5 mile loops as possible through the shaded landscapes of the Bashore Scout Reservation.

A free, timed 5K trail run at Crystal Lake Park on June 6, 2026, with a technical course of about 300 feet of elevation gain and a 40-runner field limit. Awards and a midway water station are provided.

A trail event in Wissahickon Valley Park on June 6, 2026 offering a 10K race and a 1 mile family nature walk. Proceeds support Friends of the Wissahickon for trail and watershed stewardship.