He wrestled two matches at B1Gs before MFFing out of the tourney. He won those two by fall and TF, but looked tentative about testing the injured knee at times. I estimated him at about 75% in those two matches.
Today at NCAA, I thought he looked pretty good in his first match, which he won by TF against a decent opponent (Heffernan of CMU). Not quite his normal self, but may 85-90%. The second match against Crone of Wisconsin, however, Nolf was a shell of his normal self. He won comfortably, but was content to win by a 4 or 5 point decision. Almost like he was saving himself for the next day. A fully healthy and confident Nolf probably beats Crone by TF, or close to it.
So Nolf's health is quite unclear IMO. Don't know if he is favoring the knee, or just trying to be smart/cautious, or what. But against Crone he was not close to the same guy we're used to.