WRC Logo
runsignup.com

Worlds End Ultramarathon

location_city Forksville

location_on Pennsylvania

flag United States

calendar_today 30 May, 2026

directions_run Running

language Official Website

Register

About the Event

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 End State Park as "virtually in a class by itself, this wild, rugged and rustic area seems almost untamed." This is NOT a beginner-level ultra and participation in the race should not be taken lightly.

100k Course Description
The course is predominantly rugged single-track that winds it's way through the the Endless Mountains in the Loyalsock State Forest and Worlds End State Park. Your effort will reward you with beautiful overlooks such as High Rock Vista, Canyon Vista, Upper and Lower Alpine View, Kettle Creek Vista, and High Knob Overlook along with spectacular cascades and falls like Double Run, Dry Run, Rode Falls and Lee's Falls in the Ketchum Run Gorge, just to name a few. You'll pass many interesting rock formations like Split Rock, take in the tranquility of Sones Pond and climb a wooden ladder along side Rode Falls. You may even see a bald eagle soar beside you as you traverse the rocky ledge of trail that overhangs the Loyalsock Creek.

This course can be described as "hilly" or "rolling" with it's steepest sustained climb only being about 1,000 rocky feet. The deceptive part is that there is a never ending supply of shorter climbs that the trail throws at you to give an unexpected overall elevation gain of about 12,000 feet. Combine this with the often rock strewn, technical trail along with the number of times you'll stop to take in the scenery, and you'll quickly realize this isn't a course you'll try to set any personal records on. The race was designed around the famed Loyalsock Trail but to complete the loop back to Worlds End State Park, you'll spend plenty of time exploring side trails of equal beauty. The course runs deep in the Pennsylvania hills with rocky hollows, diverse forests, narrow gorges and endless views - enough eye candy to keep you busy for your entire run. But don't linger too long at any one place, you only have 19 hours to complete this race.

Make no mistake, this race is intended to grind you down over the long haul. Luckily, we'll take care of you with 13 aid stations along the way. Not only will you see the usual ultra spread, expect to see delicious fresh fruit, bacon, and a plethora of other delicious treats to keep you moving to the finish line. You'll also have 4 aid stations that will be crew accessible and 3 locations to pick up and swap pacers from.

**The Worlds End 100k is also part of the Pennsylvania Triple Crown of Mountain Running series. These races showcase the best of Pennsylvania’s ultra mountain-running scene and celebrates the wild beauty of these rugged old mountains, and the vibrant trail-running culture that thrives in them. Do you have what it takes to tame the wilderness races of PA?**

50k Course Description
If you are not ready to tackle the full 100k but still want to take in the beauty of Worlds End, you can still challenge yourself with the 50k course. The race follows the same route as the 100k but veers off to bring you home before the start of the lower loop. While only half the distance and half the elevation (5,800 feet), it's still chock full of fabulous scenery and awesome trails. We also give you a more generous time limit of 12 hours to complete the course.

Now don't let the distance fool you, the 50k will grind you down over the long haul too. Luckily, we'll take care of you with 6 aid stations along the way. You will you see the usual ultra spread, but also delicious fresh fruit, bacon, and a plethora of other delicious treats to keep you moving to the finish line. No aid station is crew accessible and no pacers are permitted in the 50k race.

Post Race
After you survive Worlds End, hang around to enjoy the post race food and explore the state park. We will have a smorgasbord of homemade soups, chili, pulled pork and burgers - whether a meat lover, vegetarian, or vegan, our spread will have an option for you. And while it may not look like the fanciest of feasts, we're sure you'll vote it top of the list for best post race food around. We will also have a relaxing atmosphere to help you unwind after your hard effort on the trails.

Races Offered

100k

May 30, 2026

straighten

Distance — 100K

terrain

Type — Trail running

timer

05:00

50k

May 30, 2026

straighten

Distance — 50K

terrain

Type — Trail running

timer

07:00

Weather Overview

These values represent the 3-year monthly averages for May in Forksville.

Temp (°C)
Feels Like (°C)
thermostat 10.2° / 21.3°
wb_sunny 7.8° / 19.3°
Wind (km/h)
Humidity (%)
air 10.7 /
water_drop 71.2%

About Forksville

Scenic view of

Forksville is a borough in Sullivan County, Pennsylvania, United States. The population was 110 at the 2020 census. It is the home of the 150-year-old Forksville General Store, down the road from the Sullivan County Fairgrounds, and near Worlds End State Park. The name comes from the confluence of Little Loyalsock Creek and Loyalsock Creek within the borough.

Read more launch

Hotels & Places to Stay

Nearby Races

Medal Madness 5K, 10K, & Half Marathon at Lime Bluff Park, Hughesville, PA (04) 30

Medal Madness 5K, 10K, & Half Marathon at Lime Bl…

location_on Hughesville, Pennsylvania, US

calendar_today Jan 24, 2026

Viking 5K, 10K, & Half Marathon at Lime Bluff Park, Hughesville, PA (09) 30

Viking 5K, 10K, & Half Marathon at Lime Bluff Par…

location_on Hughesville, Pennsylvania, US

calendar_today Feb 28, 2026

Medal Madness 5K, 10K, & Half Marathon at Lime Bluff Park, Hughesville, PA (13) 30

Medal Madness 5K, 10K, & Half Marathon at Lime Bl…

location_on Hughesville, Pennsylvania, US

calendar_today Mar 28, 2026

2025 YMCA NYE 5k

2025 YMCA NYE 5k

location_on Bloomsburg, Pennsylvania, US

calendar_today Dec 31, 2025

Recommended for You

Hand-picked events we think you’ll love.

Our pick
Run Manatee - Rye Preserve 5K -2026

Nov 21, 2026

Run Manatee - Rye Preserve 5K -2026

The RUN Manatee 5k series offers THREE adventures to celebrate ONE community. Participants will discover Manatee County…

Read more
Our pick
Turkey Trails - Sioux Falls

Nov 28, 2026

Turkey Trails - Sioux Falls

Join us for the annual Turkey Trails 5k/10k!  A fun, Thanksgiving-themed event that is perfect for the whole family.The…

Read more
Our pick
Candy Cane Course- Lincoln

Dec 13, 2026

Candy Cane Course- Lincoln

Join us for the annual Candy Cane Course 5k/12k!  A fun, Christmas-themed event that is perfect for the whole family.Th…

Read more
Our pick
Space Coast Triathlon and Duathlon

Mar 21, 2027

Space Coast Triathlon and Duathlon

WE ARE NOW OFFERING AN AQUABIKE DIVISION! Triathlon Information:Join us for the annual Space Coast Triathlon, held in …

Read more

Get race deals & updates

Subscribe to our newsletter for curated race picks and discounts.