I am going to say the best upset I ever saw in person was Earl Walker from Boston knocking off Matt Linland in the first round...possibly the pigtail match can't remember
I remember the crowd and my own reaction to Lincoln losing to Mollenero(sp). I was dumbfounded!!!How about when Lincoln was beat in the finals? Or when Lincoln won his first title.
Caldwell beating Metcalf two years ago was one of the most stunning things I have witnessed as an Iowa fan with regards to the level of shock I felt after it was over.