August 7, 2027
August 7, 2027
The Loopy Looper is one of the fastest timed ultra courses in the country, and one of the most approachable ways to find out how far you can go.
Presented by HOKA and organized by Endless Endurance, the Loopy Looper takes place at Cooper River Park in Pennsauken, New Jersey on a flat, fully paved 3.75-mile loop with views of the Philadelphia skyline and Cooper River lake. Runners choose between 12-hour, 24-hour, and 100-mile solo events, plus 4-person relay options and a Glow Up Night Loop for anyone who wants to run a single lap after dark.
The format is simple: start at 7:00 AM, run as many complete loops as you can in your allotted time. There is no required distance. There is no cutoff pace. You set your own goal, manage your own effort, and the clock tells you when you are done.
For runners who have never raced beyond the marathon, the timed format removes the single biggest barrier to entry: the fear of not finishing. At the Loopy Looper, every completed loop counts. You cannot DNF a timed race. You can only find out what you are capable of.
The course is a single 3.75-mile loop around Cooper River Park in Pennsauken, NJ. Runners repeat the loop as many times as they choose within the race window.
The course features:
The 12-hour race runs from 7:00 AM to 7:00 PM. The 24-hour race runs from 7:00 AM Saturday to 7:00 AM Sunday. The 100-mile option requires 27 complete loops (101.25 miles) with a 30-hour cutoff.
No new laps may start within 30 minutes of the finish. Partial laps do not count in any format. All loops must be completed by the cutoff time.
4-person relay teams are available for both the 12-hour and 24-hour events. Only one team member runs the course at a time, and teams choose how to split mileage among themselves. The last lap exception allows the full team to run together for their final loop.
The Cooper River Park loop is about as fast as a timed ultra course gets. Flat pavement, no technical terrain, no significant turns, and a smooth surface that rewards road shoes and consistent effort. For runners chasing big mileage numbers or testing their limits on a course that does not add difficulty beyond the distance, this loop is purpose-built.
The course has produced some of the fastest timed ultra results in the Northeast. If weather cooperates and your preparation is dialed, the loop will let you run as fast and as far as your fitness allows.
Timed ultras are a different animal from fixed-distance races. There is no finish line to reach. There is no pace requirement. The only question is: how many loops can you complete?
This format is uniquely liberating. You can set a mileage goal, aim for a distance milestone (50K, 50 miles, 100K), or simply run without a target and see what happens. You can walk. You can sit in your pit area and eat a sandwich. You can take a nap. The clock keeps running, and the only person deciding when to get back on the loop is you.
For experienced ultrarunners, timed events are a chance to test total output. For first-timers, they are the lowest-pressure way to run farther than you ever have.
Every runner has access to a personal pit area where they can stage everything they need for the day: food, drinks, extra shoes, a chair, a change of clothes, a blanket. Because you pass your pit area every 3.75 miles, the logistics of fueling and gear management are simpler than any other ultra format.
No carrying a vest full of nutrition for 20 miles between aid stations. No planning for remote crew access. You pass your supplies every loop. Grab what you need. Keep moving.
An early August race in the Philadelphia metro area means heat and humidity. Daytime temperatures will likely be in the 80s to low 90s. The 24-hour and 100-mile runners will experience the full arc from morning heat through cooler nighttime conditions and back into the following morning.
Heat management is central to your race strategy. The runners who perform well at summer timed events are the ones who have trained in the heat, adjusted their pacing for conditions, and built a fueling plan that accounts for elevated sweat rates and suppressed appetite.
The evening and overnight hours offer relief. For 24-hour runners, the night loops can be the most productive part of the race if you have prepared for them.
This is as flat and simple as an ultra course gets.
Runners should expect:
Road shoes are the right choice here. This is a pavement race. Train on pavement.
If you are newer to ultra-distance running, explore: Trail & Ultra Running Coaching
A timed ultra is not a marathon with extra miles. It is an exercise in sustained effort across hours. Your training should prioritize total time on your feet over any single peak long run.
Training should include:
(See: Strength Training for Runners)
A 3.75-mile loop means you will see the same scenery, pass the same landmarks, and make the same turns dozens of times. This is mentally different from a point-to-point or single-loop course. The monotony is real, and managing it is a skill.
Strategies that work:
Every loop ends at your pit area. What you do there matters. A pit stop that takes 2 minutes costs you 2 minutes. A pit stop that takes 10 minutes because you cannot find your nutrition or you sit down and lose momentum costs you much more.
Practice your routine on long training runs. Know where everything is in your bag. Have your next loop's nutrition ready before you arrive. Get in, get what you need, get out.
An August race in New Jersey requires deliberate heat preparation. If you are training through the summer, you are already getting some exposure. Lean into it.
Key areas to build:
It might be the best first ultra format available.
The timed format means there is no required distance. You do not have to finish a 50K to have a successful race. If you run 30 miles, that is 30 miles more than a marathon. If you run 40, that is a personal record. If you run 50K, you just ran your first ultra. Every loop you complete is a win.
The loop format means you are never more than 3.75 miles from your gear, your food, and a place to sit. The aid station is fully stocked. Your crew (if you have one) can see you every 30 to 45 minutes. The flat, paved surface removes every technical barrier.
The only thing between you and your best possible day is your preparation.
If you are stepping into your first ultra-distance event and want structure, see How Online Running Coaching Works.
This race is a strong fit for runners who:
It is simple, it is flat, it is fast, and the only limit is what you brought with you.
If the Loopy Looper is on your calendar, your training should reflect what this race actually demands: sustained time-on-feet endurance, flat-course pacing discipline, a heat management strategy for August in New Jersey, a pit stop routine that does not waste your time, and the mental preparation to run the same loop as many times as your body allows.
Wild Dog Athletics provides personalized ultra coaching for high-achieving adults stepping into ambitious goals without sacrificing career, life balance, or long-term health.
→ Apply for 1:1 Running & Strength Coaching
Coach Abby Heffern
14x ultramarathoner and online running and strength coach who helps ambitious adults train for marathons and ultras with structure, clarity, and a plan that fits their actual life.
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