Forbidden Run Fest

Philadelphia, United States • 9 Nov 2025

Forbidden Run Fest is a trail running event held in Wissahickon Valley Park, Philadelphia, PA, known as the city's most beautiful park with over 2,000 acres and 50 miles of trails. The race offers three distances: 10K, 10 miles, and a Half Marathon+ (approximately 14 miles). The course features a mix of smooth gravel trails, compacted dirt, and some rocky uphill sections, including the challenging "Mount Misery" climb. The event aims to introduce road runners to trail running with a nature-immersed experience on the scenic Forbidden Drive Trail, which is wide and gently graded. The race is limited to 750 participants and includes aid stations, chip timing, and a post-race party with awards and live music. Visit the organization's website for the most recent information.

Race information

14 mi
Half Marathon+ (14 Miles)
10 mi
10 Miler
10 km
Visit the organization's website for the most recent information.
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