Trail Running calendar near Mount Gretna 2026-2027

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 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.

Four weekly 10K trail runs in May 2026 at the Pickall Area of Patapsco Valley State Park, organized by park stewards and timed by running time. Local sponsors support the series and Friends of PVSP members receive a $27 series discount.

A 5k and 1 mile trail event at Gentle Giants Draft Horse Rescue in Mt. Airy, MD on May 30, 2026. The route crosses a 340 acre farm with draft horses nearby and features food trucks and mounted archery demonstrations.

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.

Goliathon is a nonprofit ninja warrior style obstacle course run in Mullica Hill, NJ, with a roughly four mile course and 12 tiered obstacles (G1 G2 G3). Teams and individuals may compete; proceeds support clean water projects.

A community trail event at Opossum Lake Park offering a 6 mile obstacle course, a 4 mile run, and a 4 mile walk on mixed terrain, with chip timing, age-group awards, and proceeds benefiting the Friends of Opossum Lake Conservancy.

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.

Trail races in Colonel Denning State Park offering 15K and 25K routes with significant elevation gain, multiple aid stations, and a strict 120 runner limit. Spectator access is limited and overall winners receive awards.

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.

The Jerseys4Kids Run Against Pediatric Cancer will take place in Bala Cynwyd on Sunday 7 June 2026.

A community trail event at Paradise Farm Camps on June 11, 2026, offering a 5-mile run, a 5K, and a 1.5-mile family walk/run. All proceeds fund East Bradford Township's public trail program and trail development.

A last person standing backyard ultra at South Mountain Preserve with a 3.4 mile loop and 350+ ft of climb over rugged terrain. The event also features an evening Blackout one loop race and a beer mile.

A trail race near Montoursville, PA featuring an 8 mile Scramble on the Loyalsock Trail and a 4.5 mile Half Scramble. Limited to 200 participants, with awards by age group and proceeds supporting local cross country scholarships and Think B..

A night trail relay in Paradise, PA where teams pass a baton and collect glow rings to count loops. Runners aim to complete as many 1 mile loops as possible in a 3 hour 24 minute timed period; headlamps recommended.

A blue-blazed out-and-back trail event near Frederick, MD offering 50K and 25K options on rocky, shaded trails with stream crossings, mandatory hydration, limited entries and staffed aid stations.

Experience a scenic 5 mile trail run through Lancaster County Central Park featuring grass paths and water crossings. Compete for age group awards and enjoy a post race prize raffle in a beautiful natural setting.

Test your endurance on a 2 mile paved loop at the Rodale Park 12 Hour Challenge. Cycle, run, or walk to support the development of the September 11th National Memorial Trail.

Trail races at Rocky Ridge County Park near York, PA on June 27, 2026 offering 50K, 33.3K, 16.7K and 10K over rocky, rolling terrain with significant climbs. Registration closes June 23.