The Next Loop Endurance Series
Lake Carl Blackwell | November 21, 2026
Which Event Should I Register for?
CLICK BELOW TO REGISTER
CLICK BELOW TO REGISTER
THE NEXT LOOP HOURLY CHALLENGE
One Loop. Every Hour. You Decide How Far.
The Next Loop Hourly Challenge is an hourly-start endurance event designed for runners and walkers of all experience levels.
At the top of every hour, participants begin the designated trail loop. Complete your loop, return to the start/finish area, recover, refuel and get ready for the next hourly start.
Your challenge is simple:
How many loops do you want to complete?
There is no required distance and no DNF.
Whether you complete a few loops, reach your first trail 10K, 15K, 20K, 30K, half-marathon-distance effort, marathon-distance effort, or 50K, every completed loop counts.
Choose The Next Loop if you want:
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A new loop beginning every hour
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Recovery time between loops
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The freedom to decide how many loops you complete
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A more social, approachable endurance format
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To challenge yourself without committing to a specific distance
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No DNF — every completed loop is an accomplishment
RESULTS: Your result is based on the number of completed loops and total distance during the event.
This is NOT a continuous race. After completing each loop, you wait for the next hourly start.
If your goal is to run the loops continuously, register for the 12 HOUR CHALLENGE
THE NEXT 12 HOUR CHALLENGE
12 Hours. Your Pace. Your Distance.
The Next 12 Hour Challenge is a continuous 12-hour trail endurance event (this replaces our 40M/50M Challenge).
Everyone starts together, and from that point forward the clock keeps running. There are no hourly restarts and no required waiting between loops. and NO DNF!
You are competing against others completing the same distance you do!
Run, walk, stop at your staging area, eat, rest or take a break whenever you choose — but the 12-hour clock continues.
Your objective is to complete as much distance as you want within the 12-hour period.
You don't have to declare a distance before you start.
Maybe your goal is 40 miles. Maybe it's 50 miles. Maybe it's your first 50K. Or maybe you simply want to find out how far you can go in 12 hours.
Choose The Next 12 Hour Challenge if you want:
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A continuous endurance race
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Complete control over your pace
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No waiting for an hourly restart
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The ability to run continuously or take breaks whenever you choose
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To pursue a personal distance goal
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To see how far you can go in 12 hours
RESULTS: Your official result is the total number of completed loops and total distance completed within the 12-hour event.
Our goal at The Next Loop Endurance Series and EverFurther is to create events that are easy to navigate where you are able to attempt a distance that may be a bit further than you have gone before.
Maybe it's your first trail run, you first marathon distance, your first ultra at 50K or more. with no fear of a DNF!
We believe any distance, or any time on the trail is worthy of celebrating and recognition.
We report all distances. For a distance to count in certain record books there must be at least 14 participants in the event. By reporting all distances together, in one event, everyone is able to record their accomplishment.
Your result will be listed with all others in your event. Results are listed by distance completed. You will see you results ranked in order with those who completed the same distance you did.
Your Endurance. No Limits. One More Loop
Lake Carl Blackwell Park | 11000 W Hwy 51, Stillwater, OK 74074
Race Headquarters | Shredders Gulch Campground
Contact for Questions | joe@everfurther.net / terry@everfurther.net
All races start at 8:00 AM Saturday, November 14, 2026
All events compete on the same approx. 3.15 Mile Loop
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The Next Loop Endurance Series | Lack Carl Blackwell runs on an approx. 3.15 M Loop. Loop leave Every Hour on The Hour. No Continuous Runs on the Event
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The Next 12 Hour Challenge runs on the same 3.15 M Loop and runs continuously until 8PM.
Packet Pick-Up and Pre-Race Briefing
Pre-Race Briefings are Required
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Packet Pick-Up will be available at the Shredders Gulch Campground at Lake Carl Blackwell Park from 3PM until 6PM Friday, 11/20/2026. This will be Race Headquarters.
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Pre-Race Briefing will be at Shredders Gulch Campground at Lake Carl Blackwell Park at 6PM on Friday, 11/20/2026. There will be questions and answers at this time. Making sure you're registered for the event you want to run.
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Race Day Packet Pick-Up will be at Shredders Gulch Campground at Lake Carl Blackwell Park from 5:30AM until 6:30AM Saturday 11/21/2026 . This will be Race Headquarters.
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Race Day Pre-Race Briefing will be at 6:30AM on Saturday 11/21/2026. This is the last time you can change events. No Race Changes after 7AM Saturday.
Aid Station, Staging Areas and Pacers
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There will be a well-stocked central Aid Station at Race Headquarters at Shredders Gulch Campground at Lake Carl Blackwell Park
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There will be cookies, candies, chips, pickles, water some warm food during the night.
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TAILWIND Nutrition will supply Endurance Fuel drink
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We do not supply gels
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There will be plenty of green space to stage your gear, set up canopies, etc. There will be some space under the Pavilion.
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You are welcome to stage from your vehicle.
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The park does not normally allow overnight camping
Pacers
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Only 1 pacer at a time
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Pacers are allowed after your 4th loop.
