Ultramarathon

Eastern States 100

Eastern States 100 is a remote 103-mile Pennsylvania Wilds loop with more than 20,000 feet of climbing and a qualification requirement each August.

Next race2027 date TBD
Distance categoryUltramarathon
LocationWaterville, Pennsylvania
Get alertsLast checked August 10, 2026

Quick facts

  • Single-loop 103-mile trail course
  • More than 20,000 feet of climbing
  • Qualifying ultra required for entry
  • Roughly 98 percent trail with limited access

About the Eastern States 100

Eastern States is a single-loop mountain 100 in the Pennsylvania Wilds. Entry requires prior ultra experience, reflecting a technical and remote course that is deliberately more demanding than a beginner 100-miler.

Course

The 103-mile loop is roughly 98 percent trail and gains more than 20,000 feet through the Pine Creek region. Rocks, roots, steep grades and limited access create a serious wilderness challenge.

Race-day weather

August in central Pennsylvania can be hot and humid, with thunderstorms or heavy rain changing trail conditions quickly. Overnight lows may help, but wet rock and roots raise technical risk.

Past Eastern States 100 dates and results

YearDateStatusResults
2026Saturday, August 8, 2026CompletedOpen results

Just finished?

Ran the 2026 Eastern States 100?

Help future runners understand the course, logistics, and race-day atmosphere. A short report takes about two minutes.

Eastern States 100 FAQ

When is the Eastern States 100?

We're waiting for the finalized date for the 2027 Eastern States 100. The most recent running was on Saturday, August 8, 2026.

Featured collections

Found an official update?Send race details or links

Send us confirmed dates, registration links, results, live tracking, or course changes. Include the source link so runners can reach the right information.

Include source links when you can.