Stanford's Zhao gains NCAA quarters; Cal star upset

   The Stanford women had a great day in the NCAA Singles and Doubles Championships.
   The Cal women, not so much.
   Stanford's Carol Zhao, seeded second in singles, reached the singles quarterfinals with another dominating victory on Friday in Waco, Texas, and the Cardinal has two of the remaining eight doubles teams.
   Meanwhile, Cal's only remaining representatives are No. 5-8 doubles seeds Klara Fabikova and Zsofi Susanyi. Most notably, No. 4 singles seed Maegan Manasse lost to No. 9-16 seed Josie Kuhlman of Florida 4-6, 6-0, 6-1.
   Zhao, a sophomore from Canada, lost only two games in singles for the third consecutive match. She whipped Susanyi, a senior from Hungary who advanced to the NCAA singles semifinals as a freshman, 6-2, 6-0.
   Zhao will face unseeded Chanelle Van Nguyen, a UCLA senior who reached the quarterfinals for the second consecutive year.
   The other quarterfinal matchups are top-seeded Robin Anderson of UCLA against No. 9-16 Stephanie Wagner of Miami,  No. 7 Jamie Loeb of North Carolina vs. No. 9-16 and defending champion Danielle Collins of Virginia, and Kuhlman against unseeded Sinead Lohan of Miami.
   Collins, who won a set against world No. 2 Simona Halep in the first round of the U.S. Open last August, defeated UCLA's Jennifer Brady, ranked No. 209 in the world, 6-1, 7-5.
   Advancing to the doubles quarterfinals were Stanford's Taylor Davidson and Zhao, the second seeds, and Caroline Doyle and Ellen Tsay. Doyle, a sophomore from San Francisco, and Tsay, a senior from Pleasanton, outlasted No. 5-8 seeds Manasse and Denise Starr 6-4, 1-6, 6-4.
   Three more seeds fell in men's singles: No. 5 Sebastian Stiefelmeyer of Louisville and No. 9-16s Mikelis Libietis of Tennessee and Yannick Hanfmann of USC. The highest remaining seed is No. 7 Noah Rubin, a Wake Forest freshman who won the Wimbledon junior boys singles title last year.
   Columbia's Winston Lin, who upset Stiefelmeyer 7-5, 6-4, will meet Thai-Son Kwiatkowski of Virginia in the quarterfinals. Also, Rubin will face unseeded Jared Hiltzik of Illinois, No. 9-16 Quentin Monaghan of Notre Dame will play unseeded Cameron Norrie of Texas Christian, and No. 8 Ryan Shane of Virginia will take on Felipe Soares of Texas Tech.