I think those are pretty solid predictions. I think Sasso should be solidly favored over Estrada, but agree that 174 is toss up.
Rogotzke could blow the dual up with a YOLO throw, and I'm hoping he goes for it. I don't think he has much of a chance of beating Arnold in a match that goes the full seven minutes.
It appears your scoring is a bit off, though. Buchanan should pick up 4, not 2, to go from 13 to 17 (Iowa 17, tOSU 14) and Feldman should pick up 3, not 4, to get us to 17-17. Then it's down to tiebreakers.