Dirty German Endurance Fest
Philadelphia, United States • 9 May 2026
Event overview
The Dirty German Endurance Fest is an urban trail ultramarathon held in Philadelphia, PA, on May 9, 2026. The event typically attracts more than 600 runners. Distances offered:
- 25K
- 50K
- 50 Miler
Registration closes Mon, May 4 @ 11:59PM ET. Entry fees vary by distance and date: early, mid, and late tiers are listed for each distance in the source.
Course and logistics
The race takes place in Pennypack Park, along Pennypack Creek, with a figure-8 loop design. One loop measures 25K; 50K runners run two loops, and 50 mile runners complete three loops plus an extra roughly 1-mile dogleg per loop. The course surface includes soft and occasionally sandy spots, smooth single track, wider flat gravel trail, and about one mile of paved bike trail per loop. The route is mostly shaded and features short climbs rather than long climbs.
Time limit for the 50 mile distance is 12 hours 30 minutes. Each participant receives a full zippered running jacket, commemorative bib, and finisher medal; ultra finishers receive an additional hat. Overall winners receive a cuckoo clock and top age-group finishers receive German weather-house awards. The finish area includes live accordion music and post-race food prepared by professional chefs. Visit the organization's website for the most recent information.