Dirty German Endurance Fest

Dirty German Endurance Fest

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. 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.

Start Location:

Pine Road Entry at Pennypack Park, approx. 8750 Pine Road, Philadelphia, PA 19111

Entry Fee:

• 25K: $69 till 12/31/25, $75 till 4/7/26, $79 after
• 50K: $79 till 12/31/25, $85 till 4/7/26, $89 after
• 50M: $89 till 12/31/25, $95 till 4/7/26, $99 after

Start Time:

• 50 Miler starts at 7:30 AM
• 50K starts at 8:00 AM
• 25K starts at 8:30 AM

Refunds:

Till 30 days before race day. Mail us a stamped self-addressed envelope to receive a refund minus $10: UES, c/o DirtyGermanRF, 2137 Old Lancaster Pike, Reinholds, PA 17569. After: no more refunds or deferrals.

Goodies:

Every runner will receive a full zippered running jacket, commemorative bib and great finisher medal. Ultra finishers will also receive the Dirty German 50 Runners Hat.

Awards:

Winner overall male and female will receive an authentic German cuckoo clock. Top 3 in age groups: 29 & under, 30-39, 40-49, 50-59 and winner 60+

Time Limit:

12 hours & 30 min (for the 50M). This is a firm time limit. The park closes at 9 PM, and we need to be all cleared out by then. You have to start your final loop no later than 4PM, otherwise you can not continue.

Weather:

The average temp at the start is in the 50ies. Average high 70. The course is mostly shaded.

Course:

Along Pennypack Creek within the limits of Pennypack park. Course is basically a figure 8 consisting of mostly single track trail and a short paved bike path section. One loop is 25K. 50 K runners will run it twice, 50 mile runners will run the main loop 3 times and an extra 1 mile dog leg section during each loop (well marked).

Post Race Party:

Many runners bring popup tents, camping chairs & blankets to spend the afternoon at the finish line to cheer for other runners. Uberhans, Americas toughest accordion player and former Seattle Seahawks kicker will entertain you at the finish line area and 2 professional chefs will pamper you with delicious post race food.