Date
Sat, 5 Jun 2027
Start
05:00
Venue
Cliff Pavilion, Worlds End State Park, Forksville, Pennsylvania
Forksville, Sullivan County
Countdown
June
The full Worlds End experience: a 103 km single loop with serious climbing, starting in the early dark and running on until midnight if you need it.
Key facts
01Entry reviewed by the race director before you are accepted
02Need a finish in a 50k or longer trail race within its cut-off, last 3 years
03Course GPS must be on your device offline at bib pickup
Create a free training plan for the Worlds End Ultramarathon 103 km
7-day free trial, no card required
The course
The route
Forksville
Distance103km
Total climb3,779m
StartElevation
0 kmDrag map to rotate93.1 km
Weather
Early-June, Forksville
23°CTypical high
12°CTypical low
2°CColdest in 20 years
47%Days with rain
Highs around 23°C and lows around 12°C, but it has dropped to 2°C. Rain on 47% of days.
NASA POWER data, 2006-2025, the week either side of race day
2026 results
Who finishes, and how
#RiderTimeAvg speed
01KAYLEE FREDERICK12:24:278.3 km/h
02CARRE ZATWARNYTSKY12:36:348.1 km/h
03KATIE BICKSLER13:24:247.7 km/h
21
Women finishers
16:35:14
Median time
6.2 km/h
Median speed
Women · 2026 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
OrganiserIron Forged Runners; race director Dave Walker
Websiteworldsendultra.com
Instagram@worldsendultra
Running since2015
Training
Training for the Worlds End Ultramarathon 103 km
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a Worlds End Ultramarathon 103 km plan targets
Typical sessions
103 km with 3,779 m of climbing
Time on feet and fatigue resistance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long runs that build time on your feet
Tempo and threshold sessions to hold race pace
Hill reps and vert to prepare the climbs and descents
Back-to-back weekend runs for fatigue resistance
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
Entries open now
Get your Worlds End Ultramarathon 103 km plan.
7-day free trial, no card required.
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