Caroline Wozniacki, just returned to the WTA Top 10, notched an impressive first-round win Monday at the Qatar Total Open.
No. 8-seeded Klara Zakopalova rallied for a first-round victory Monday at the 21e Open GDF Suez tennis tournament in Paris.
Second-seeded Zheng Jie survived a long three-set challenge Tuesday in advancing to the second round of the HP Japan Women's Open in Osaka.
Seeded players Dominika Cibulkova of Slovakia and Italy's Roberta Vinci each notched opening day wins Sunday at a rain-shortened Pan Pacific Open.
Top-seeded Caroline Wozniacki and third-seed Kaia Kanepi rolled through first-round victories Tuesday at the Korea Open tennis championship in Seoul
Top-seeded Victoria Azarenka and defending champion Samantha Stosur were among the winners Monday in a rain-filled first day of the 2012 U.S. Open.
Seeded players Jelena Jankovic and Francesca Schiavone each were eliminated by way of upset Monday on the first day of the Western & Southern Open.
Four second-round matches, including one involving third-seeded Anabel Medina Garrigues, were rained out Thursday at the Sony Swedish Open.
Second-seeded Julia Goerges lost just four games Tuesday in advancing out of the first round of the Sony Swedish Open tennis tournament.
Five-time champ Anabel Medina Garrigues fell in an upset Tuesday but top-seeded Sara Errani advanced to the second round at the Palermo Women's International.