Eastern States 100 Race Tracking
Works on desktop and mobile. Remember, this is the PA Wilds—runners are updated only when they reach an aid station and volunteers transmit their times. The website refreshes every 10 minutes.

Conquer the circumnavigation of the Lost and Bewildered River in the Wilds of Pennsylvania

Race Begins 5AM, August 14, 2027

Take me to registration

EASTERN STATES IOO

REGISTRATION FOR 2027 WILL OPEN
OCTOBER 1, 2026 AT 6PM EASTERN TIME

Registration Opens Oct. 1st

NOTE: With its graphics, maps, charts, tables, etc., this website is best viewed on a desktop and/laptop. You are missing out if you use a smartphone to review this website.

2026 Eastern States 100 Participant Guide

Lisa DeNardo PHOTOGRAPHY-ES100course-2025-27 (1).jpg

The Eastern States Flune

Because not everyone uses social media, we created this news feed to keep you updated and in the know.

Eastern States 100 2026 Recap and Thanks

And just like that, another Eastern States 100 is in the books. Kaylee Frederick stole the show.

54 minutes ago

Eastern States Race Tracking

Last week we unveiled Runner Tracking for Eastern States 100—a solution born from the reality that much of the course has little to no cell service, making app-based tracking impossible and GPS trackers prohibitively expensive. The response has been tremendous! Now it's even better. In addition to using "Locate Your Runner" to search for a specific runner and view their aid station splits, departure times, and race status, you can: Watch the race unfold on an interactive cour

Jul 24

An important Eastern States 100 deadline is approaching

Registration closes Thursday, July 30 at Noon EDT, and at that time we will temporarily freeze the waitlist. This allows our timing company to finalize the field, program runner and pacer bibs, our staff to process our paperwork, and prepare everything for race weekend. If you're currently registered but know you won't be racing (whether due to injury, scheduling conflicts, or life getting in the way) please withdraw as soon as possible. It's the right thing to do and may giv

Jul 24

A Statement from Eastern States Trail-Endurance Alliance Management on Crews and Spectators

There is one rule we need to address directly because it has become increasingly important to the future of our events. When our rules state "No crews or spectators are permitted except at designated crew-access aid stations," we mean exactly that. This is not a guideline. It is not a suggestion. It is not open to interpretation. It is a condition of our permits. Our events exist only because the Pennsylvania Department of Conservation and Natural Resources (DCNR), the Pennsy

Jul 16

Sign me up! NOW!

PRESENTED BY:

The Eastern States Trail-Endurance Alliance promotes trailrunning and the responsible use of public lands, through events such as the Eastern States 100, Ironstone 100K and Eagleton Trail Challenge, three footraces we manage as a stewardship for trailrunners and the community.