Pennsylvania · 100K · 50K
Worlds End Ultramarathon
Worlds End Ultramarathon is a 100K and 50K event held in Forksville, Pennsylvania. Its next confirmed date is Saturday, June 5, 2027. About 200 runners take part across all distances.
- Race day
- June 5, 2027
- Location
- Forksville, PA
- Field size
- ~200 runners
Race details
- Date
- Saturday, June 5, 2027
- Location
- Forksville, Pennsylvania
- Distances
- 100K, 50K
- Field size
- About 200 runners
- Course
- 12395 ft gain
- Registration
- runsignup.com
- Official website
- worldsendultra.com
Registration, course & weather
- Registration status
- Registration status as last checked September 25, 2026: opens soon
- Entry fee
- Listed fee for the longest distance, $210 (from runsignup.com, checked September 25, 2026)
- Start time
- 5:00 AM EDT
- Course profile — 100K
- Loop course; Trail surface; 12395 ft gain, 12395 ft loss (official course data)
- Course profile — 50K
- Loop course; Trail surface; 5850 ft gain, 5850 ft loss (official course data)
- Typical race-day weather
- about 45°F at the start, 71% humidity, 13 mph wind (based on the 2026 race day, measured near the city center rather than the exact start line; Open-Meteo, checked September 25, 2026)
About the Worlds End Ultramarathon
One of the toughest and most beautiful courses you’ll find anywhere! The Worlds End Ultramarathon is a challenging foot race that explores the Loyalsock Trail, Loyalsock State Forest and Worlds End State Park in the Endless Mountains of Pennsylvania. The routes are largely rugged, scenic-dense single-track trails with some fairly remote sections, several waterfalls and multiple vistas of the beautiful Endless Mountains. The PA Department of Conservation and Natural Resources describes Worlds En…
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Worlds End Ultramarathon: common questions
- When is the Worlds End Ultramarathon?
- The next confirmed date is Saturday, June 5, 2027.
- Where is the Worlds End Ultramarathon held?
- In Forksville, Pennsylvania.
- What distances does the Worlds End Ultramarathon offer?
- 100K and 50K.
- How many people run the Worlds End Ultramarathon?
- About 200 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 Worlds End Ultramarathon?
- Registration is handled by the organiser at runsignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Worlds End Ultramarathon?
- Registration status as last checked September 25, 2026: opens soon. Listed fee for the longest distance, $210 (from runsignup.com, checked September 25, 2026).
- What time does the Worlds End Ultramarathon start?
- 5:00 AM EDT.
- What is race-day weather usually like at the Worlds End Ultramarathon?
- about 45°F at the start, 71% humidity, 13 mph wind (based on the 2026 race day, measured near the city center rather than the exact start line; Open-Meteo, checked September 25, 2026).
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