Worlds End Ultramarathon route map
raceindex.org has a GPS course file for Worlds End Ultramarathon, so runners can inspect the route line on the map. Elevation charts and ascent figures appear only when that file includes usable elevation data.
Worlds End Ultramarathon
This race edition
- Race date
- Date not confirmed for this distance
- Race timezone
- Timezone not confirmed
- Edition status
- Status not confirmed
Entry options
2027 edition
Entry options are not yet confirmed for this edition. Check the organiser before making plans.
Modelled energy-cost change 10.4% versus flat · net elevation -1 m
Decision summary
Worlds End Ultramarathon at a glance
- Route ascent
- 3,319 m
- Cut-off average pace
- 11:24/km
- Typical conditions
- 63/100
- Evidence depth
- 51 verified facts
Lower than 43% of comparable mapped races
19:00:00 total limit divided by distance. Check gun/chip timing and intermediate limits; allow time for stops.
Historical race-date favourability, not a forecast
Stored GPS route
Quick answers
What runners ask first
How hilly is the Worlds End Ultramarathon?
The Worlds End Ultramarathon route has 3,319 m of ascent, 3,320 m of descent and an estimated 10.4% grade-adjusted pace penalty versus a flat route.
Where does the Worlds End Ultramarathon route go?
The Worlds End Ultramarathon route starts at Cliff Pavilion at Worlds End State Park, Forksville, PA and finishes at Cliff Pavilion at Worlds End State Park, Forksville, PA. Underfoot, expect predominantly rugged, rock-strewn, technical single-track trail. It passes Loyalsock Trail, High Rock, Canyon Vista, Alpine View and Kettle Creek. Run by Iron Forged Runners, a grassroots Pennsylvania trail-running organization.
What should runners know on race day for the Worlds End Ultramarathon?
13. Pacers approved for the 100k only, joining at aid stations AS9 (Jackson Flats), AS11 (Brunnerdale) or AS13 (Fern Rock); one pacer per runner at a time. Crews allowed for both distances.
Race character
Scenery
- Mountain
- Forest
- Canyon
- Countryside
- Parkland
- Riverside
Atmosphere
- Wilderness
- Scenic Tour
- Destination
Terrain
- Trail
- Elevation character
- Mountainous
- Technicality
- Technical
Entry, logistics and records
Records and field
- Field size
- 450 person total capacity limit across both distances
- Field cap
- 200
Entry requirements
- Entry status
- Qualification entry: Entry requirement held: 100k requires completion of a 50k trail race within the cut-off in the prior 3 years.
- Cut-off
- 100k: 19 hours, 5:00 AM start to midnight cutoff
- Qualification status
- 100k requires completion of at least one 50k trail race within its advertised cut Off within 3 years of registration; no lottery (none).
- Prior experience
- 100k requires completion of a 50k trail race within the cut-off in the prior 3 years
Race day logistics
- Aid stations
- 13
- Pacers
- Pacers approved for the 100k only, joining at aid stations AS9 (Jackson Flats), AS11 (Brunnerdale) or AS13 (Fern Rock); one pacer per runner at a time. Crews allowed for both distances.
- Finisher tee
- Finisher/race shirts provided to registered runners (sizes managed at packet pickup)
Access and course status
- Start
- Cliff Pavilion at Worlds End State Park, Forksville, PA
- Finish
- Cliff Pavilion at Worlds End State Park, Forksville, PA
Course facts
- Course type
- Loop
- Surface
- Predominantly rugged, rock Strewn, technical single Track trail
- Landmarks
- Loyalsock Trail, High Rock, Canyon Vista, Alpine View, Kettle Creek, High Knob, Butternut View, Double Run, Dry Run Falls, Rode Falls, Lee's Falls, Alpine Falls, Split Rock, Sones Pond, Loyalsock Creek
- Notable features
- Run by Iron Forged Runners, a grassroots Pennsylvania trail-running organization
- explicitly not a beginner-level ultra
- Scenic-dense single-track over the Loyalsock Trail with multiple waterfalls, narrow gorges, rock formations and Endless Mountains vistas
- some remote sections
How hilly is the Worlds End Ultramarathon?
- Steep descent 19%
- Descent 19%
- Flat 25%
- Climb 18%
- Steep climb 19%
- Total ascent
- 3,319 m
- Net elevation
- −1 m
- GAP factor
- 10.4%
- Longest climb
- 1,870 m at 12.1%
What are typical race-day conditions?
- 18°CTypical temperature
- 16 kphTypical wind
- 3 mmTypical rainfall
- 63Favourability /100
More race details
Is the Worlds End Ultramarathon flat?
Its normalised GAP factor is 10.4% slower than a flat course, with about 3319 m of total ascent.