All 10 of those games were decided by one score. ISU leads the all time series too. Man Iowa State just can't have nice things can they? Gameday comes to Ames = Iowa fans claiming they're coming to watch the Hawkeyes. Iowa State has other rivals = Iowa fans lecturing Iowa State fans that they actually aren't rivals.So a trophy means a rivalry? I dont think Michigan considers Minnesota a rival.
KSU just recently beat ISU 10 straight times until the 2018 game. There has to be some competitiveness to be considered a rivalry, IMO.
ISU and Nebraska rivals? Dont even know where to start with that one.