Dirty German Endurance Fest
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Event Overview
The Dirty German Endurance Fest is an urban ultramarathon held within Philadelphia's Pennypack Park. It features trail running on a course along Pennypack Creek. The course includes a mix of surfaces: soft and occasional sandy spots, smooth single track, wider flat gravel trail, and approximately one mile of paved bike path per loop. The terrain has some short climbs. The course is described as well-marked and not too technical.
Distances
The event offers three distances:
- 50 Miler
- 50K
- 25K
Location and Setting
The start and finish location is at the Pine Road Entry to Pennypack Park. The park is described as a hidden gem with trails, old trees, and wildlife, offering a natural setting within Philadelphia city limits.
Registration and Fees
Registration closes on Monday, May 4, 2026. Entry fees increase over time:
- 25K: $69 until December 31, 2025, then $75 until April 7, 2026, then $79.
- 50K: $79 until December 31, 2025, then $85 until April 7, 2026, then $89.
- 50 Miler: $89 until December 31, 2025, then $95 until April 7, 2026, then $99.
Refunds are available until 30 days before race day via a mailed request, minus a $10 processing fee. No refunds or deferrals are allowed after that period.
Participant Perks and Awards
All runners receive a full-zip running jacket with the event logo, a commemorative bib, and a finisher medal. Finishers of the 50K and 50 Miler distances also receive a "Dirty German 50" runners hat. Awards include authentic German cuckoo clocks for the overall male and female winners. Unique German weather houses are awarded to the top three in age groups: 29 & under, 30-39, 40-49, 50-59, and the winner of the 60+ category.
Course and Time Limits
The course is a 25K loop along Pennypack Creek, consisting mostly of single-track trail with a short paved section. The 50K is two loops, and the 50 Miler is three loops plus a marked one-mile extension on each loop. There is a firm 12-hour, 30-minute time limit for the 50 Miler. Runners must start their final loop by 4:00 PM to continue.
Post-Race
A post-race party features live music and food prepared by professional chefs. Many participants bring tents and chairs to spend time at the finish line area. Visit the organization's website for the most recent information.
