Mary will play Elaine Chervinsky (Virginia), who i believe played #5 for Virginia last year. She has a great serve and forehand combo but doesn't like long points or the backhand side. Mary definitely has an edge here. The way Mary played today is an indication that she finds a way to win and win somewhat convincingly even when she doesn't get to play the style she wants.
Nicole will play Connie Ma (stanford). Great player, super talented and hard to beat, yet the one time Nicole and her have played Nicole won. I was able to watch Ma's match yesterday and she struggled a bit against the girl when the girl was ending the points early and going for her shots (and making them). If Nicole can play at the level she's played so far especially today, I give her the slight edge. Either way I believe it will be a good match.