Winter Nationals to feature all-NorCal boys 16 final

   A Northern Californian will win the boys 16 singles title in the USTA National Winter Championships.
   Fifth-seeded Kurt Miller of Los Gatos in the San Jose area and sixth-seeded Ethan Quinn of Fresno advanced to Friday's final on clay in Orlando, Fla.
   Miller topped third-seeded Michael Zheng of Montville, N.J., 5-7, 6-4, 6-3 today, and Quinn defeated 17th-seeded Michael Ross of Charleston, S.C., 6-2, 6-4. Ross had ousted top-seeded Louis Cloud of San Antonio 6-2, 6-1 in the third round.
   Meanwhile, two Northern Californians will play for separate doubles titles in Orlando.
   Third-seeded Aryan Chaudhary of Santa Clara and Logan Zapp of Fleming Island, Fla., will meet fourth-seeded Keshav Chopra of Marietta, Ga., and Coy Simon of Charleston, S.C., on a hardcourt in the boys 18s. Chaudhary and Zapp will enroll at Stanford and North Carolina, respectively.
   Also, unseeded Katie Codd of Carlsbad in the San Diego area and Tomi Main of Seaside in the Monterey region will face top-seeded Natalie Block of Plantation, Fla., and Aubrey Nisbet of Wilmington, Del., on clay in the girls 16s.
   Main, seeded 10th in singles, lost to 17th-seeded Lucinda Gatsiounis of Studio City in the Los Angeles area 6-2, 6-1 in the quarterfinals.
   In the boys 16 doubles semifinals on clay, top-seeded Lucas Brown of Plano, Texas, and Aidan Kim of Milford, Mich., beat unseeded Quinn and Gabriele Brancatelli of Westhampton Beach, N.Y., 7-6 (2), 6-2.
   In the girls 14 singles semifinals on hardcourts in Tucson, Ariz., 10th-seeded Ava Bruno of Bronxville, N.Y., beat 17th-seeded Emily Novikov of Campbell in the San Jose area 6-2, 7-6 (5).