Forbidden Run Fest

Course

Starts and finishes at Houston Playground, 900 Grakyn Lane, in Wissahickon Valley Park, Philadelphia. The half marathon, 10 miler and 10K run mostly on the smooth gravel of Forbidden Drive with rolling single-track sections and a short paved stretch. Aid stations sit 2-3 miles apart: one on the 10K, three on the 10 miler and four on the half.

Key dates

• !
  Registration
  Open now
• ★
  Race day
  Sun 8 Nov 2026

About

The Forbidden Run Fest is a trail running event held in Wissahickon Valley Park, Philadelphia, celebrating the park's natural beauty and historic trails. It features races on a mix of smooth gravel Forbidden Drive and technical single-track sections, limited to 750 runners.

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  Harrisburg Marathon

  Sun 8 Nov · Harrisburg, PA · Marathon · Marathon Relay · Half Marathon

  Flat course along the Susquehanna River

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• 

  Pittsburgh 10 Miler

  Sun 8 Nov · Pittsburgh, PA · 10 Miler · 10K
  Save
• 

  Run 4 Pies

  Sat 14 Nov · Easton, PA · 4-mile race · 2.1 km

  Every finisher takes home a whole pie

  Save
• 

  Rocky Run

  Sat 14 Nov · Philadelphia, PA · Half marathon · 10 Mile · 5K

  Finishes atop the Rocky Steps at the Art Museum

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A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.