⏵ Course guide · Free
Blues Cruise is a single-loop 50K around Blue Marsh Lake in Berks County, Pennsylvania, and it is one of the more approachable ultras in the state on purpose. Fields, rolling hills, and runnable singletrack, with just one real climb and a strict 9-hour cutoff. I will walk you through the course first, then give you a pacing and fueling plan built for a runnable first ultra. There are free calculators along the way to dial in your own numbers.
These facts come from the official race site, pagodapacers.com, run by the Pagoda Pacers running club. Check the current date, cutoffs, and entry details before you commit. Race logistics change year to year.
The 50K is a single loop around Blue Marsh Lake, a little over 3,000 feet of total climbing across the entire distance. This is fields, rolling hills, and runnable singletrack, with under half a mile of road and one optional water crossing you can choose to skip. There is no technical mountain terrain to learn here, which is exactly the point.
The only major climb on the entire course is the Ski Slope, at 240 feet. Compared to almost any mountain trail ultra in Pennsylvania, that is nothing, and it means the rest of your day is spent on genuinely runnable terrain rather than grinding up long grades. Treat the Ski Slope as a brief change of rhythm, not a crux to fear.
Most of the loop moves through open fields and rolling hills on runnable singletrack, with under half a mile of pavement mixed in. This is trail that rewards steady, consistent running rather than technical skill, so the race stays true to its billing as a good entry point into the ultra distance. There is one optional water crossing along the way, and you can route around it if you would rather keep your feet dry.
Pagoda Pacers runs themed aid stations roughly every 4 miles, which gives you frequent, reliable support around the lake. But do not let the friendly atmosphere fool you about the clock: the 9-hour cutoff is strictly enforced, with a 5:00 PM finish for the 8:00 AM start, plus intermediate checkpoints at aid station 5 by 1:45 PM and aid station 7 by 4:00 PM. The course is gentle. The cutoff is not negotiable.
With only about 3,000 feet of gain and one real climb, Blues Cruise rewards steady, consistent running more than it demands careful grade management, so pace it like a long trail run, not a mountain ultra.
Because the terrain is genuinely runnable, the biggest pacing mistake here is going out too fast simply because the trail lets you. Hold an effort you know you can sustain for the full 31 miles, and remember that the 9-hour cutoff, while workable for most trained finishers, is strict. A grade-adjusted pace target helps you find that honest, sustainable number, even on a course this gentle.
A strict 5:00 PM cutoff with intermediate checkpoints at aid station 5 and aid station 7 means you want a real finish prediction, not a guess. Run your expected pace through a vert-aware finish calculator and check it against the cutoff schedule so you know your margin well before you get to aid station 5 at 1:45 PM.
⏵ Free tools to pace this course
A runnable course means a steadier carbohydrate burn than a slow technical climb, and frequent themed aid every 4 miles gives you regular chances to restock.
Aim for 60 to 90 grams of carbohydrate per hour, leaning higher if your gut is trained for it, since the runnable terrain keeps your effort and your carbohydrate burn fairly consistent all day. With themed aid stations roughly every 4 miles, you do not need to carry a heavy reserve. Restock often and keep your pack light.
Sodium in the 300 to 700 mg per liter range covers most runners, scaled toward the higher end if the October weather runs warm around Blue Marsh Lake. The frequent aid stations make it easy to stay ahead of your fluid needs instead of rationing between long gaps, so use them.
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⏵ Free calculators for this race
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Blues Cruise is one of the more approachable 50Ks on the calendar, and that is by design. It is a single loop around Blue Marsh Lake in Berks County, a little over 3,000 feet of total climbing across the whole 50K, with the only major climb being the 240-foot Ski Slope. Fields, rolling hills, and runnable singletrack make up most of the course, with under half a mile of road and one optional water crossing. The 9-hour cutoff is strict and enforced at 5:00 PM sharp, so it is not a freebie, but the terrain itself is genuinely runnable rather than a technical mountain test.
Yes, and the race itself leans into that. Blues Cruise is explicitly positioned as a good first ultra: a single, well-marked loop, runnable terrain without heavy technical singletrack, and a supportive club atmosphere from Pagoda Pacers, a 200-plus member running club. If you have a solid marathon or two behind you and want to step up to the ultra distance without also learning technical mountain trail at the same time, this is a sensible place to do it. The 9-hour cutoff is real and strictly enforced, so you still need a training block behind you, but the course itself will not be what beats you.
The course totals a little over 3,000 feet of climbing across the full 50K loop around Blue Marsh Lake. The only major climb is the Ski Slope, at 240 feet, and the rest of the elevation comes from rolling hills spread across the loop rather than one sustained grind. This is a gentle profile compared to almost any mountain trail ultra in the state, which is a big part of why the race works well as a first ultra.
The overall limit is 9 hours, strictly enforced, with a 5:00 PM finish cutoff for an 8:00 AM start. There are two intermediate checkpoints along the way, aid station 5 by 1:45 PM and aid station 7 by 4:00 PM. Nine hours for 31 miles on runnable terrain is workable for most trained finishers, but the race is explicit that the cutoff is strict, so do not plan on the organizers giving you extra time at the line.
Plan for a 5 to 9 hour effort on mostly runnable terrain, which means a steadier, higher carbohydrate burn than a slow technical mountain course would give you. Most runners do well on roughly 60 to 90 grams of carbohydrate per hour, and sodium in the 300 to 700 mg per liter range depending on the October weather. The aid stations are themed roughly every 4 miles, which gives you frequent, reliable spots to restock rather than long unsupported stretches.
Expect fields, rolling hills, and runnable singletrack for most of the loop, with under half a mile of road and one optional water crossing you can choose to avoid. This is genuinely runnable trail, not technical rock or root-strewn singletrack, which is exactly why the race markets itself as a good entry point into the ultra distance rather than a mountain test.
This guide is independent and for planning only. The course details, dates, cutoffs, and entry fees come from public sources and can change year to year, so confirm the current specifics with the official race before you register or run. The fueling and pacing advice is general and not medical advice.