Philadelphia, PA, United States · Saturday, May 8, 2027

Fixed Distance 50 mi

Dirty German Endurance Fest 50 Mile

234 days away

80 km Distance

not publishedn/a Climbing

4.0 est Grit · Challenging

Calculated from 80 km alone — the organiser has not published an elevation profile. Read 4.0 as a floor, not a verdict.

39.9524° N, 75.1636° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Time limit 12 hours 9:00 min/km average. Comfortable. Room to walk the climbs and stop at aid. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. Among the tightest 50 mi cut-offs we track. Measured against 455 races of the same distance. Cut-off calculator →

Field size ~133 Mid-sized. Company early, well spread out by halfway.

DUV results for the 2026 edition (50mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, May

Daytime high 22°C

Night low 11°C

Rainfall Showers likely

Daylight 14 h 07 m of light

Regional 2001-2020 average for May — NASA POWER, grid elevation 47 m. Not a forecast.

The Aid Station

Course-specific beta from the community

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Gear for this race

Chosen for 80 km of trail.

Trail Running Shoes80 km of trail — cushioning that is still there in the last quarter.
Race Nutrition80 km of self-supported fuelling between aid stations.
Hydration VestsFlask capacity for 80 km, without the bounce.
HeadlampsA 12 h limit puts you out there after dark.
GPS WatchesBattery life first — a 80 km day outlasts most full-GPS modes.

Salomon

Ultra Glide 4

$159.95 ★★★★★ 4.6

Brooks

Catamount 3

RunRepeat found the Brooks Catamount 3 to have a cozier upper that enhances the overall fit, though breathability and durability could be better. iRunFar noted…

★★★★★ 4.5

Spring Energy

Awesome Sauce

Real food gel with 180 calories. Rice-based with natural flavors.

$4 ★★★★★ 4.6

Nathan

VaporKrar 12L

12L race vest co-designed with ultra champion Rob Krar, with insulated bladder pocket.

$170 ★★★★★ 4.6

Petzl

NAO RL

1500-lumen reactive lighting headlamp with 15-hour runtime. Automatic brightness adjustment.

$150 ★★★★★ 4.7

COROS

APEX 2 Pro

GPS running watch with 75-hour GPS battery, topo maps, and training metrics.

$500 ★★★★★ 4.7

All gear guides →

Course Notes

This race course is located within Pennypack Park, a hidden gem within Philadelphia's Fairmont park system. The park stretches along Pennypack creek for about 7 1/2 miles, and is home to many trails, huge old trees, birds & other wildlife.

Similar races

Other 50 mi trail ultras, closest in distance first.