https://en.wikipedia.org/wiki/Dean_Karnazes
Amazing, perhaps incredible without drugs even (I presume). Averaging 13 minutes per mile. Just to stat awake for 80 hours is beyond me. But from his log,
SATURDAY 2:21 a.m. "I've been sleep running. I suddenly woke up and realized I'm still running. And the really bizarre thing is that I feel like I got a little catnap." -https://www.runnersworld.com/elite-runners/dean-karzes-runs-350-miles
And yet "Karnazes was not compatible with his high-school track coach, and stopped running for fifteen years."