Marathons are always a challenge... I'd rather run 1-2 miles in a short time than run half a day in the middle of nowhere. I don't really like that idea, but I don't insist on my choice. Whoever wants to run, run! And I'll give you 5 stars :) Anyway, I still have a few years to train to this level. I'm not so long ago I started to run, to risk a lot of distances at once.