How old is too old to run your first Comrades Marathon?

How old is too old when it comes to running the Comrades Marathon? It is often said that you shouldn’t run a race as tough and as long as the Comrades when you are too young, but what about the other end of the scale? Today’s question is short and sweet, coming in from Chris. Chris says he’s 56 years old, he will be attempting his first Comrades Marathon in 2015 and he wants to know is it possible at the age of 56?