- SatanLv 72 months agoFavourite answer
Depends on the person's health and endurance
There is a guy on Stan Les's Superhumans, who didnt develope lactic acid build up, and as long as he stayed awake, could just keep running.
- Anonymous2 months ago
At least a marathon.
- GoergeLv 72 months ago
They can run until they stop.
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