7 of those 9 losses were because ISU was clearly the better team. 2002 was debatable because ISU was really strong at the beginning of the year and 2014 I still don't know what happened. Derp!
ISU was better than Iowa in 2012. Outside of that, Iowa had at least the same amount of wins or more. Plus ISU played in the weak ass Big12 North for the majority of these years.
2014 Iowa 7-6 > ISU 2-10
2011 Iowa 7-6 > ISU 6-7
2007 Iowa 6-6 > ISU 3-9
2005 Iowa 7-5 = ISU 7-5
2002 Iowa 11-2 > ISU 7-7