

RunPA
Dirty German Endurance Fest
May 9, 2026 • Philadelphia, PA
Course Distances
50M
50K
25K
About this race
This race takes place within the city limits of Philadelphia, and therefore qualifies as an urban ultramarathon, but you will not find things like traffic, noise, bad air quality & concrete buildings here. Every year 600+ runners toe the starting line. This race course is located within Pennypack Park, a hidden gem within Philadelphia's Fairmont park system. The park stretches along Pennypack creek and is home to many trails, huge old trees, birds & other wildlife. I run here all the time, and never get tired of it. This race offers a perfect opportunity for runners to enter the exciting world of trail (ultra) running . We accomplish this by providing a course that is well marked & not too technical. The course features different surfaces. Some soft and occasional sandy spots along the creek, a lot of smooth single track as well as some wider flat gravel trail. Every loop includes about 1 mile of paved bike trail. There is some elevation, but the climbs are short. This course is very run-able and easy by trail running standards, which as experienced runners will know, can make it even more challenging, because it will not give you many opportunities where you can/should hike.
Around Philadelphia
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