Altamirano tops Italian in U.S. Open qualifying

   Collin Altamirano, an 18-year-old wild card from Sacramento, defeated Luca Vanni of Italy 6-4, 6-2 today in the first round of qualifying for the U.S. Open in Flushing Meadows, N.Y.
   Altamirano will face eight-seeded Ricardas Berankis of Lithuania for the first time in the second round. Berankis beat Mackenzie McDonald, 19, of Piedmont in the San Francisco Bay Area, 6-3, 6-2.
   On the women's side, sixth-seeded Olivia Rogowska of Australia downed Kristina Barrois of Germany 6-3, 6-2. Rogowska, the champion of last month's Sacramento Challenger, will meet another German, Laura Siegemund, for the first time in the second round.
   Altamirano earned a wild card into the main draw of last year's U.S. Open by winning the USTA Boys 18 National Championships in Kalamazoo, Mich., and lost in the first round to 22nd-seeded Philipp Kohlschreiber of Germany 6-1, 6-3, 6-1.
   Altamirano fell to Noah Rubin, who won the boys singles title at Wimbledon last month, in the final of the USTA 18 Nationals earlier this month.