⏵ Course guide · South Jersey multi-day track ultra
The Old Six Day runs an entire week on a USATF certified 399.519m track at Cooper River Park in Pennsauken, New Jersey, with six formats sharing the same track: a straight 6-Hour race up through the full 144-Hour, 6 Day event. I will walk you through the track and the format menu first, then give you a pacing and fueling plan built for a race measured in days, not just miles. There are free calculators along the way to dial in your own numbers.
These facts come from the official Endless Endurance event page. Entry fees are tiered and rise as the date approaches, so check the current pricing there before you register.
Every format at The Old Six Day runs the same certified 399.519m, 5-lane rubber track. What changes is how many hours you get and when your window opens.
The full 6 Day (144-Hour) field starts first, Monday at 10:00 AM, and runs the whole week. Shorter formats join later in the week on staggered starts: the 24-Hour Invitational Tuesday morning, the 3 Day (72-Hour) Wednesday morning, the 2 Day (48-Hour) Thursday morning, and the 1 Day (24-Hour), 6-Hour, and 12-Hour all clustered around Friday, with the 12-Hour starting Friday night. Every format finishes together, Sunday at 10:00 AM.
Only complete laps count toward your total distance, so a partial lap at your cutoff does not add mileage. The running direction on the track changes every 6 hours as well, a standard multi-day-race practice that spreads the physical load more evenly across your body over that many hours on a fixed oval.
One main aid station runs continuously all week with standard aid station food and vegan-friendly options, and catered lunch and dinner are provided throughout your event except the day it starts. This is a cupless race, so bring reusable containers. The venue has real restrictions worth knowing before you pack: no tents larger than 10x10, no alcohol on site, and no tent stakes allowed at all.
Pacing here depends entirely on your chosen format. A 6-Hour push demands a different plan than a 144-Hour week, and sleep becomes a real strategic variable once your window stretches past a single day.
If you are entered in the 6, 12, or 24-Hour, pace it much like any other timed race on a track: a steady lap pace you could repeat late in the effort, with brief planned stops rather than a fast start you cannot sustain. Use a race-time prediction to see what holding a given lap pace does to you across your full window.
Once your format stretches into the 48, 72, or 144-Hour range, deliberate rest becomes as important as your running pace. Build in scheduled sleep blocks from the start rather than pushing until you collapse, and pace conservatively enough in the early going that you have genuine flexibility to rest later without losing meaningful ground on your own mileage goal.
⏵ Free tools to plan your effort
With catered lunch and dinner covering most of your week, a real logistical advantage, your job is mostly about pacing your intake across whatever window your format gives you.
Catered lunch and dinner cover most days of your format, one less thing to plan yourself compared to most multi-day races. On top of that, aim for roughly 60 to 90 grams of carbohydrate per hour while actively moving, and bring your own sodium source since the aid station is standard fare rather than a dedicated electrolyte station.
If your format stretches into multiple days, fueling stops being a single-day plan and becomes something closer to how you eat and hydrate over an extended stretch of real life, steady and sustainable, built around real food from the catering as much as gels or drink mix. Adjust as your appetite and gut tolerance shift across the days.
⏵ Build your fueling plan
Get a carb, sodium, fluid, and caffeine plan per hour built for your weight and your chosen format 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 the kind of sustained, repeatable time-on-feet a multi-day track ultra demands. Summit Line reads your real training, builds the durability your chosen format asks for, and rehearses your fueling so race week is something you execute, not guess at.
It is a multi-day timed ultra festival on a certified 399.519m track at Cooper River Park in Pennsauken, New Jersey, run by Endless Endurance across an entire week. Six formats share the same track and week, from a straight 6-Hour race up through the full 144-Hour (6 Day) event, and every runner is simply chasing the most laps within their chosen window.
You run laps of a fixed track for up to 144 straight hours, six days, resting whenever you choose, and your total distance at the end of your window is your result. Only complete laps count toward your mileage, and the running direction flips every 6 hours to keep the load even on your body. It is as much a test of sleep management and pacing discipline as it is of raw distance covered.
The track itself, a smooth 5-lane rubber surface, is about as forgiving as ultra terrain gets. The difficulty is entirely in the format: managing sleep, nutrition, and a sustainable pace across up to six full days on your feet. Shorter formats like the 6-Hour or 12-Hour are a serious but contained single push, while the longer 48, 72, and 144-Hour events are genuine multi-day undertakings where rest strategy matters as much as fitness.
The official page does not publish intermediate time cutoffs beyond each format's own duration window and shared 4/11/27, 10:00 AM finish. In practice your only real deadline is the end of your chosen format's window, since there is no minimum pace required, only complete laps within the time you have.
Finishers of the 6-Hour or 12-Hour get a shirt, medal, and mug. The 24, 48, 72, and 144-Hour formats add a jacket to that same shirt, medal, and mug package. Anyone who covers 100 or more miles earns a buckle regardless of format, and there are additional milestone awards for runners who reach 200, 300, or 400-plus miles.
The shorter formats, the 6-Hour or 12-Hour, are a genuinely approachable way to try a timed track ultra for the first time: a flat, certified surface, one main aid station running all week, and catered meals covering most of your logistics. If you are considering a longer format like the 48 or 72-Hour for a first multi-day attempt, treat the sleep and pacing planning as seriously as your training, since that is what separates finishers from the field at those lengths.
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<a href="https://runsummitline.com/guides/the-old-six-day">The The Old Six Day course guide</a><iframe src="https://runsummitline.com/embed/race/the-old-six-day" style="width:100%;max-width:420px;height:180px;border:0;" loading="lazy" title="The Old Six Day course guide by Summit Line"></iframe>This guide is independent and for planning only. The formats, dates, and track details 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.
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