20 Mile: 2,000 feet of vertical
Starting at 8:00 AM, the 20-miler covers a portion of the full lollipop with 2,000 feet of vertical gain, real climbing on mostly single track without the full time commitment of the 40.
⏵ Course guide · Blue Marsh Lake, Pennsylvania
Naked Bavarian runs a single-track heavy lollipop course along the north side of Blue Marsh Lake, with 4,000 feet of vertical on the 40 mile and 2,000 on the 20 mile, aid every 3 miles, and a German-themed finisher memento waiting at the end. I will walk you through the course, the shared 6:00 PM cutoff, and a pacing and fueling plan for whichever distance you choose, with free calculators along the way to dial in your own numbers.
These facts come from the official Uber Endurance Sports race page. The start/finish sits in the Leesport-side day-use area of Blue Marsh Lake. Check the official page for the current year's details before you commit.
Start and finish are at the Lake View Pavillion day-use area on the north side of Blue Marsh Lake. The layout is a lollipop: 6.5 miles out, a 7 mile loop, then 6.5 miles back, on a surface that is 80% single track and 20% gravel road.
Starting at 8:00 AM, the 20-miler covers a portion of the full lollipop with 2,000 feet of vertical gain, real climbing on mostly single track without the full time commitment of the 40.
Starting earlier at 7:30 AM, the 40-miler doubles both the distance and the vert of the 20, at 4,000 feet of vertical gain over the full lollipop shape. Expect the mix of single track and gravel road to repeat as the course structure asks you to retrace sections of the out-and-back portions.
Stations sit at miles 3.5, 6.5, 10, 13.5, 16.5, and 20, each stocked with water, Gatorade, and carbs. That spacing means you are rarely more than a few miles from resupply on either distance.
Both distances share a 6:00 PM cutoff, which gives the 40-miler a 10.5 hour window from its 7:30 AM start and the 20-miler a 10 hour window from its 8:00 AM start.
With 4,000 feet of vertical packed into the 40 miler (2,000 for the 20), your single-track climbing sections will cost more time than a flat-course pace calculator assumes. Use the 20% gravel-road portion of the lollipop to settle your breathing and recover your legs between the technical single-track stretches, rather than treating the whole course as one uniform effort.
⏵ Free tools to plan your effort
With water, Gatorade, and carbs at 6 aid stations roughly every 3 miles, you can lean on course support and carry less between stops.
Aim for roughly 40 to 60 grams of carbohydrate per hour and sodium in the 300 to 500 mg per liter range as a baseline for the 40 mile distance, scaling down slightly for the shorter 20 mile option. Early March in Berks County, Pennsylvania can still be cold, so plan your layering and understand that fluid needs will likely run lower than a warm-weather race, while carbohydrate needs for the climbing stay the same.
⏵ Build your fueling plan
Get a carb, sodium, fluid, and caffeine plan per hour built for your weight and an early-March Pennsylvania trail effort with the free ultra fueling calculator. Browse the rest of the free running tools at the tools hub.
⏵ Train for it with Summit Line
Get a training plan built around YOUR fitness and Blue Marsh Lake's single track and 4,000 feet of vert. Summit Line reads your real training, builds the climbing legs this course demands, and rehearses your fueling so race day is something you execute, not guess at.
The 40-miler carries 4,000 feet of vertical gain over a lollipop layout of single track (80% of the course) and gravel road (20%) along the north side of Blue Marsh Lake. That vert total over 40 miles is a moderate, steady demand rather than a single brutal climb, and the mostly single-track surface means technical footing matters more than raw grade.
It runs as a lollipop: 6.5 miles out, a 7 mile loop, then 6.5 miles back, meaning the 40-miler effectively covers that lollipop shape and the 20-miler covers a portion of it. The surface is 80% single track and 20% gravel road along Blue Marsh Lake's north side, giving you real trail feel with enough gravel road mixed in to open your stride between technical stretches.
Both the 20 mile and 40 mile races share a 6:00 PM cutoff. With the 40-miler starting at 7:30 AM, that gives you a 10.5 hour window; the 20-miler starting at 8:00 AM gets a 10 hour window. Pace with the vert in mind (2,000 feet for the 20, 4,000 for the 40) rather than assuming flat-course pace will carry you through.
The 20 mile option is short of true ultra distance and gives you the same terrain and aid support as the 40-miler on a more approachable scale, with 2,000 feet of vertical and a 10 hour cutoff. If you are eyeing a first true ultra, the 40 mile with 4,000 feet of vert and aid stations roughly every 3 miles is a well-supported, moderate introduction to the distance.
Aid stations sit roughly every 3 miles, at miles 3.5, 6.5, 10, 13.5, 16.5, and 20, each offering water, Gatorade, and carbs. That frequency means you can run lighter and count on regular resupply rather than carrying a full day's nutrition yourself.
Every finisher receives a German-style finisher memento, with additional awards given by placement and age group. The race name and finisher swag both lean into the Bavarian theme, a distinctive touch for a Pennsylvania trail race.
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<a href="https://runsummitline.com/guides/naked-bavarian">The Naked Bavarian course guide</a><iframe src="https://runsummitline.com/embed/race/naked-bavarian" style="width:100%;max-width:420px;height:180px;border:0;" loading="lazy" title="Naked Bavarian course guide by Summit Line"></iframe>This guide is independent and for planning only. Dates, cutoffs, and pricing come from the official Uber Endurance Sports race page and can change year to year, so confirm the current specifics before you register or run. The fueling and pacing advice is general and not medical advice.
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