Trail Running calendar near Mount Gretna 2026-2027

A community run and walk in Easton, PA on May 3, 2026, featuring a USATF-certified 5K, a 2 mile walk and a kids fun run; proceeds benefit Friends of Historic Easton Cemetery and the event emphasizes sustainability, awards, and local refresh..

A fundraising 5K run/walk through My Lady's Manor in Monkton, Maryland, supporting The Harford Land Trust and The Manor Conservancy. Includes awards by overall and age groups and a post race happy hour with finger foods.

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.

A community trail series at Haverford Reserve in May and June featuring two 5K races and a 1 mile trail walk. Event proceeds support trails in Haverford Township and registration is handled online.

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.

The Crystal Lake Outdoor Center holds its 10th Annual Trail Race on May 9, 2026 in Hughesville, PA, offering 5K and 25K courses on cross-country trails with lodging options and proceeds supporting trail maintenance.

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.

Experience a technical trail run through the scenic woods of Camp Hebron with 5K and 10K courses. Navigate hills and stream crossings to earn a finisher beanie and enjoy post race refreshments for a good cause.

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 running event in Rothrock State Forest and Happy Valley, Pennsylvania. Races include a 50K and 25K with notable elevation gain amid sandstone ridges and rhododendron tunnels in mid May 2026.

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.

Two days of fundraising hikes in May 2026 offer 5K and 10K canal routes plus 10 and 20 mile Appalachian Trail challenges, with trail support, fundraising matches, and proceeds benefiting Micah’s Backpack and the Refugee Welcome Network.

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 at Plantation Field on May 23, 2026 offers 15K and 5K obstacle courses, an Infinity lap option, and spectator access across rolling hills and muddy terrain. Finishers receive medals, a shirt, a headband, and a finisher d..

A 12 hour ultramarathon at Spring Meadows Park in Boiling Springs, PA, run on a 1.4192 mile lightly rolling dirt and crushed rock loop. Solo and team entries count toward buckles and hoodies based on cumulative laps.

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.