Course
Single-loop course of roughly 103 miles on trails of the Pennsylvania Wilds, starting and finishing in Waterville. The route carries 20,000+ ft of climbing, with a network of aid stations including Bonnell Flats at mile 11.6.
100 Miles100 mi
Key dates
- ✓Entries openedThu 1 Oct 2026
- ★Race daySat 14 Aug 2027
Date confirmed with the organiser · entry window checked by RunCalendar
About
A 103-mile single-loop ultramarathon starting and finishing at Waterville in the Pennsylvania Wilds, circumnavigating the Pine Creek watershed. The course carries more than 20,000 feet of climbing on remote mountain trails, with crew-access aid stations around the loop.
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Save Eastern States 100 to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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