The biggest upset I have ever seen was in a regional final in 66 or 67. Lowery from Norton beat Lampe from Colby who was an amazing three timer who wrestled very well for Iowa State. I don't know how many times Lampe had beaten Lowery in a row but it was quite a few. Lowery knocked him off 10-2 and set up a great state finals match the next week in which Lampe came back and beat him by about the same score if I remember right. Lowery winning was not as big an upset as Lampe losing if you get my drift they were both great.