1 loss or undefeated we're mathematically guaranteed to be in after the win last Saturday. But even if we lose two of our last three, the only way we'd don't make it is if both ISU and CU win out (we win tiebreakers with CU).
Edit: I missed ASU, they could jump us at two losses if they win out and one of our two losses are to them (which gives them H2H). And technically WVU if KU wins out and KSU loses out, whatever the likelihood of that happening is.