Defending women's champion Portland led a group of six unseeded teams into the NCAA Division I women's sweet 16.
Soccer America's NCAA Division I Women's Tournament Scoreboard
Rachael Rapinoe, twin sister of injured star Megan Rapinoe, scored the winning goal in a 2-1 win victory over BYU on Thursday, and scored two more goals in a 3-0 win at No. 4 seed Utah two days later.
Virginia had one of the most impressive second-round victories, winning at No. 3 seed Wake Forest, 2-0, on goals by Jess Rostedt and Kristen Weiss.
Two other unseeded ACC teams moved into next week's third round: Clemson, which beat Vanderbilt and No. 4 Oklahoma State in shootouts, Boston College, which won in a shootout over No. 3 Rutgers.
Unseeded Stanford took advantage of neighbor Santa Clara's misfortune to win the foursome at the Broncos' Buck Shaw Stadium on Sunday. Freshman Kelley O'Hara scored both goals in a 2-1 win over USC.