Well looking at the clock just before you leave and right when you get back is really not a very trustworthy way of timing yourself. And, 35-50 is a fucking huge margin, just sayin. I'm not trying to hate, but you started out claiming just over an hour, which in my world isn't 1.35, not even close. And, if you run 13 miles through hilly terrain, that is really, really fast as well. The record we are talking about are world records, set on almost completely flat routes, so I agree with you when you say that you won't beat the Ethiopians. Not really sure what I'm trying to say here, but I have a strong feeling that you are either claiming, unsubstantiated, or you have messed up your timing. But just maybe you are a freakishly talented runner, but it seems unlikely.
Extra fact: The guy that has the current world record on a half marathon, 58 min, is actually Eritrean. Sorry bout that.