"Yesterday I couldn't make a 3-pointer if my life depended on it," Gryzb told the Associated Press.. "But I cam out today and they started going down."
The game was tied early in the second half, but the Wildcats went on a 16-0 run, holding the Beavers scoreless for 6:30.
Arizona actually trailed by nine in the first half, but used a 10-0 lead to get back into the game.
Hollye Chapman scored 23 points in the loss.
Arizona plays Washington on Sunday. The Wildcats beat the Huskies last weekend to win their first Pac-10 title.