I got into a long discussion with people here last night. But before you get to opponent Win percentage, the tiebreaker step is “combined record against common conference opponents”
We have 6 common opponents with ISU: KSU, Houston, Utah, Baylor, Kansas, UCF
So if our record against those 6 is better than ISU (I.e our only loss is ASU), we win
If our record against those 6 equals ISU, it goes to “record against best common opponent” which is KSU