A trail runner on a grassy ridge above a sea of clouds

Eastern States 100

The Eastern States 100 is run in the Pine Creek basin at the heart of the Pennsylvania Wilds, with Waterville as its base.

Prepare for Eastern States 100 in

A plan built from your answers and your race date.

trail training plan

The Eastern States 100 is run in the Pine Creek basin at the heart of the Pennsylvania Wilds, with Waterville as its base. The ground is classic northern Appalachian: rocky trail, short brutal climbs, long stretches under tree cover and stream crossings. August humidity is a constant factor on top of the terrain.

8 km with 6,096 m of vertical gain. It is considered the toughest 100-miler in the Mid-Atlantic, less because of altitude than because of the relentless steep pitches and the quality of the footing. m.

The formats

One format only.

Format	Distance	Vertical gain
103 Mile	103 mi	6,096 m

Organizer information, checked on September 21, 2026 · easternstates100.com

When to start

A build for this distance usually runs 12 to 24 weeks. Counted back from race day, that puts the start somewhere between February 22, 2027 and May 17, 2027.

These ranges are working conventions, not a research finding — no trial has compared plan lengths against each other. What matters more is that the plan was built for the weeks you actually have, rather than shrunk down from a longer one.

How to choose your start date

When to start

February 22, 2027

→ May 17, 2027

Worth reading before you enter

Races and distances Trail distances: what changes off the road Distance stops being the useful number. What decides a trail race is how long you are out, how much you climb, and how much the descents have wrecked your legs by the end. Read Training Eating and drinking: what’s proven, what isn’t This is where confident advice most often runs ahead of the evidence. Some of it is well tested. Some is opinion wearing a number. And one common habit can kill you. Read Races and distances When to start preparing your race Most plans fail before the first session, because the block started too late and everything had to be squeezed. Counting back from the date is the dullest and most useful thing you will do. Read

Questions

What is the date of Eastern States 100 in 2027?

Eastern States 100 is run on Saturday, August 14, 2027 in Waterville. Date published by the organizer, checked on September 21, 2026.

How much climbing does the Eastern States 100 have?

8 km with 6,096 m of vertical gain. The elevation comes as short, repeated climbs rather than long sustained ascents, all on notably rocky Appalachian trail.

How experienced do I need to be for Eastern States 100?

This race suits runners who already have 100-mile experience, move well on rocky ground and can handle a full night out. August humidity makes hydration and salt management a decisive part of the day.

Other races

This list keeps growing; it draws no line. A race that is missing is prepared for in exactly the same way.

Honolulu · United StatesUltra HURT 100 Jan 16 Its five-loop, 20-mile-per-lap format carries a famously high drop-out rate. Bandera · United StatesUltra HOKA Bandera Endurance Trail Race January The HOKA Bandera Endurance Trail Race is a trail and ultra weekend held in Bandera, Texas, inside the Hil Moab · United StatesUltra Moab 240 Endurance Run January 7 km ultramarathon with 9,620 m of vertical gain, run as one continuous loop out of Moab, Utah. It is par Your race is not here? Tell us about your race You can prepare for it all the same. Any race, anywhere, and even a goal without a race.

Your race is on the calendar. Your plan should be too.

Build my plan

Secure payment with Stripe. Then allow about 30 minutes for your profile, in several sittings if you like.