I know someone who ran it on one kidney and, the first time, the support car broke down around 90 miles, so the organizers were forced to stop her... The previ

I know someone who ran it on one kidney and, the first time, the support car broke down around 90 miles, so the organizers were forced to stop her... The previous year, she had had to bail out one week before the race in order to donate the other kidney. Yes, later she did eventually run it and finish it.