Top-seeded Nadia Petrova of Russia beat Mariana Diaz-Oliva of Argentina 6-2, 6-2. Petrova took the first set in only 29 minutes and was awarded the second when Diaz-Oliva twice double faulted to give up serve in the sixth game.
"The game wasn't so easy and there were a lot of unforced errors," Petrova said.



