For all the hype this guy gets, he ranks 175th overall in the marathon. Pretty pathetic if you ask me.
http://www.alltime-athletics.com/mmaraok.htm
Similar case for Molly Huddle - 34 years old.. running her whole life and still pretty pathetic in the marathon
http://www.alltime-athletics.com/wmaraok.htm
Key takeaway: US Distance running is mediocre