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4x4x48 Challenge Planner
4 miles, every 4 hours, for 48 hours - 12 sessions, 48 miles. Pick your start date and time and get the complete session schedule with live countdowns, checkboxes and printing.
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How to use the 4x4x48 challenge planner
- Pick the date and time of session 1.
- Follow the 12 generated sessions - each shows date, time and live status.
- Check sessions off, print the plan for the fridge.
What is this method?
The format is simple and brutal: run 4 miles every 4 hours for 48 hours straight. That is 12 runs with sleep deprivation baked in - plan fuel, headlamps, dry socks and a crew if you can.
Most people fail on logistics, not legs. Use this schedule so you never have to do start-time math at 3am. Stop and seek care if you feel sharp pain, dizziness or chest symptoms.
Frequently asked questions
- How many sessions is 4x4x48?
- 12 sessions of 4 miles each - 48 miles total across 48 hours.
- What pace should I run?
- Easy and conversational. This is a durability event, not a race - walk breaks are fine.
- Can I do it on a treadmill?
- You can, but most run it outdoors for the full experience. Night sessions need lights and reflective gear.
- Is 4x4x48 safe?
- It is extremely demanding. Get medical clearance if you have health conditions, fuel aggressively, and stop for pain, dizziness or chest symptoms.
Related Winnr tools
4x4x48 is extremely physically demanding. Consult a professional before attempting, and stop if you experience pain, dizziness or chest symptoms. Winnr is an independent app.