[Hammer]

The ones that amaze me are the ultramarathoners. They run from 50 to 100 miles in a race and then there are the 24 hours and multi-day races of 1,000 miles.

I used to race bikes and we'd often do 100 mile and 150 mile training rides and then race up to 100 miles in a single race but I can only imagine how painful it would be to run that far.