TENNIS - RESULTS AT TOSHIBA CLASSIC .  CARLSBAD , [START_ENT] California [END_ENT] 1996-08-24  Results from the  $ 450,000 Toshiba Classic tennis tournament on Friday ( prefix  number denotes seeding ) :  Quarterfinals :  1 - Arantxa Sanchez Vicario ( Spain ) beat Katarina Studenikova  ( Slovakia ) 6-3 6-3  3 - Jana Novotna ( Czech Republic ) beat Sandrine Testud ( France )  2-6 7-6 ( 7-4 ) 6-3 .  4 - Kimiko Date ( Japan ) beat 5 - Gabriela Sabatini ( Argentina )  6-4 6-1
California