Stanford women at White House; Fed tops Tursunov

   President Barack Obama hosted the Stanford women and 18 other NCAA championship teams from 2012-13 at a White House celebration on Monday.
   The ceremony took place on the South Lawn, and the teams toured the White House.
   "Wow," Stanford's Kristie Ahn tweeted. "It was an honor to meet the president & tour the White House. Crazy to be where all the greats have lived."
   Ahn, from Upper Saddle River, N.J., clinched Stanford's dramatic 4-3 victory over Texas A&M in the NCAA final last May. Now a senior, she plays No. 1 singles and doubles for the ninth-ranked Cardinal (8-0).
   Stanford has made six visits to the White House. Until Monday, the most recent was by the men's volleyball team in 2010.
   BNP Paribas Open in Indian Wells -- Four-time champion Roger Federer, seeded seventh, beat 27th seed Dmitry Tursunov, who's based in the Sacramento suburb of Granite Bay, 7-6 (7), 7-6 (2) in the third round.
   Tursunov double-faulted six times, including at 7-7 in the first tiebreaker and 1-1 in the second, and converted only 46 percent of his first serves.
   The 31-year-old Russian fell to 0-4 lifetime against Federer. However, Tursunov equaled his best result in eight appearances in Indian Wells by reaching the third round. All men's and women's seeds received first-round byes. 

COLLEGE RESULTS
Men

   USF def. Sonoma State 5-2 in San Francisco. No. 1 singles: Bernardo Saraiva (USF) def. Matt Roberts 6-0, 6-4. Records: USF 7-5 (Monday's result against Youngstown State not available), Sonoma State 1-6.

Women

   USF def. Youngstown State 7-0 in San Francisco. No. 1 singles: Andrea Ka def. Margarita Sadovnikova 3-6, 6-1, 6-2. Records: USF 9-4, Youngstown State 5-7.
   USF def. Southern Utah 4-0 in San Francisco. No. 1 singles: Thyra Taune def. Aleksandra Ivanova 6-0, 6-1. Records: USF 10-4, Southern Utah 3-2.