|By The Associated Press |

|Wednesday |

|At Ariake Colosseum |

|Tokyo |

|Purse: $2.17 million (Premier) |

|Surface: Hard-Outdoor |

|Singles |

|Third Round |

 Sara Errani (6), Italy, def. Marion Bartoli (9), France, 3-6, 6-2, 6-2.

 Nadia Petrova (17), Russia, def. Petra Martic, Croatia, 7-6 (2), 6-7 (1), 6-4.

 Sam Stosur (8), Australia, def. Dominika Cibulkova (12), Slovakia, 6-4, 7-5.

 Angelique Kerber (5), Germany, def. Urszula Radwanska, Poland, 6-1, 6-1.

 Maria Sharapova (2), Russia, def. Lucie Safarova, Czech Republic, 6-2, 7-6 (5).

 Agnieszka Radwanska (3), Poland, def. Jamie Hampton, United States, 6-4, 6-3.

 Caroline Wozniacki (10), Denmark, def. Li Na (7), China, 4-6, 6-3, 6-4.

 Victoria Azarenka (1), Belarus, def. Roberta Vinci (14), Italy, 6-4, 6-2. |

|Doubles |

|First Round |

 Anna-Lena Groenefeld, Germany, and Kveta Peschke (4), Czech Republic, def. Daniela Hantuchova, Slovakia, and Peng Shuai, China, 6-1, 6-2.

 Anastasia Pavlyuchenkova, Russia, and Lucie Safarova, Czech Republic, def. Vania King, United States, and Yaroslava Shvedova (1), Kazakhstan, 6-3, 7-6 (5). |