Hannah has jumped in all three games and Iowa has lost the tip in all three. I wouldn't classify them as all her fault though.
-Game 1 - Southern (jumped against #24) - Hannah got outjumped
-Game 2 - Evansville (jumped against #5) - Hannah controlled the tip, but Evansville guard jumped in front of Heiden who was a bit slow to react.
-Game 3 - Drake (jumped against #15) - Hannah controlled tip straight out of bounds as Chit Chat fell at the tip (I assume that her foot was stepped on during her initial step). The ball went right over where she was sitting on the ground.
I did note though that they changed player positioning between game 2 and 3 after Heiden was slow to react, Feuerbach was moved into Heiden's previous jump position and Chit Chat moved to where Feuerbach had been.