[rimliu]

It would be difference between Eliud running and average male walking.

I would not dare event to try running a marathon, but I've done 100km walks 3 times already, and numerous shorter distances. Never walked extactly the marathon distance, but it should take me ~6:00 hours. However, I am definitely among the faster walkers (at the last 100km event they told me I was the first to finish, but it was not a competition, so who knows).