Dirty German Endurance Fest

MAY
9
2026
Experience the Oktoberfest of trail running at Pennypack Park in Philadelphia. Enjoy a fast runnable course with distances of 25K 50K and 50 miles featuring German snacks accordion music and a festival atmosphere.
Sat 9 May 2026
50 miles 50 kilometers 25 kilometers

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Dirty German Trail Races

The Dirty German Trail Races take place in Pennypack Park, Philadelphia, offering a variety of distances for trail runners. The event is designed with a fast and runnable course, featuring surfaces such as soft single track, sandy spots along the creek, flat gravel trails, and approximately one mile of paved bike trail per loop. While the course includes some elevation, the climbs are brief.

Participants can choose from three main distances:

  • 25K: A single loop of the Pennypack course.
  • 50K: Two loops of a figure-8 course.
  • 50 Miles: Three loops plus a one-mile dog leg per lap, with a 12.5-hour time limit.

The event features specialized support, including the "Oktoberfest Aid Station" which serves pretzels, grilled cheese, bacon, potatoes, and fruit. The course includes a twisty single-track section known as the Rollercoaster. All finishers receive a medal, and participants are provided with a gender-specific quarter-zip performance top.

The race atmosphere is centered on a festival theme. The post-race area includes music from an accordion player and food such as hot dogs and sauerkraut. Awards for top finishers and age group winners include traditional items from the Black Forest, such as cuckoo clocks and weather houses. Many participants and running clubs set up tents and pavilions to watch the event throughout the day. Visit the organization's website for the most recent information.

50 mi
50 Miler
50 km
50k
25 km
25k
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