Pennsylvania · 50 Miler · 50K · Marathon
MuleSkinner Endurance Races
MuleSkinner Endurance Races is a 50 Miler, 50K, marathon and half marathon event held in Upper Black Eddy, Pennsylvania. It was last held on October 10, 2026 and is usually run in October; the next date hasn't been announced yet. About 34 runners take part across all distances.
- Usually held
- October
- Location
- Upper Black Eddy, PA
- Field size
- ~34 runners
Race details
- Last held
- October 10, 2026
- Usually held in
- October
- Location
- Upper Black Eddy, Pennsylvania
- Distances
- 50 Miler, 50K, Marathon, Half Marathon
- Field size
- About 34 runners
- Course
- Course is consistently described by the organizer as flat and fast; no official elevation-gain figure has ever been published.
- Registration
- ultrasignup.com
- Official website
- spirit-trips.com
Registration, course & weather
- Registration status
- Registration status as last checked September 28, 2026: closed
- Start time
- 5:00 AM EDT
- Course profile — Half Marathon
- Out-and-back course; Mostly trail, some road
- Course profile — Marathon
- Out-and-back course; Mostly trail, some road
- Course profile — 50K
- Out-and-back course; Mostly trail, some road
- Course profile — 50 Miler
- Out-and-back course; Mostly trail, some road
- Typical race-day weather
- about 45°F at the start, 79% humidity, 3 mph wind (based on the 2025 race day, measured near the city center rather than the exact start line; Open-Meteo, checked September 28, 2026)
About the MuleSkinner Endurance Races
MuleSkinner Endurance Races is a flat, non-technical towpath ultra/marathon event on the D&R Canal towpaths along the Delaware River in Bucks County, PA, offering Half Marathon, Marathon, 50K, and 50 Mile distances that cross into New Jersey via historic river bridges. All distances start and finish at Tinicum Park in Erwinna/Upper Black Eddy, PA, with generous cutoffs aimed at first-time ultra/marathon runners.
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Guides from the RaceRove blog
- 8 min read How to Choose Your First Marathon A practical checklist for choosing a first marathon based on course, weather, cutoff, travel, field size and support.
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
- 9 min read How to Run a Race in All 50 States How to plan a 50-state running challenge: set your own rules, group states into trips, build a calendar around the seasons, budget for it and keep track of every finish.
- Blog All guides Planning advice for finding, choosing and travelling to races.
MuleSkinner Endurance Races: common questions
- When is the MuleSkinner Endurance Races?
- The next date hasn't been announced in the listing yet. The race is usually held in October. Check the organiser's website for the official date.
- Where is the MuleSkinner Endurance Races held?
- In Upper Black Eddy, Pennsylvania.
- What distances does the MuleSkinner Endurance Races offer?
- 50 Miler, 50K, Marathon and Half Marathon.
- How many people run the MuleSkinner Endurance Races?
- About 34 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the MuleSkinner Endurance Races?
- Registration is handled by the organiser at ultrasignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the MuleSkinner Endurance Races?
- Registration status as last checked September 28, 2026: closed.
- What time does the MuleSkinner Endurance Races start?
- 5:00 AM EDT.
- What is race-day weather usually like at the MuleSkinner Endurance Races?
- about 45°F at the start, 79% humidity, 3 mph wind (based on the 2025 race day, measured near the city center rather than the exact start line; Open-Meteo, checked September 28, 2026).
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