Italian top seed Flavia Pennetta powered into the second round of the Generali Ladies in Linz with an emphatic 6-1 6-1 victory over American Meghann Shaughnessy.
The 27-year-old forced 12 break points on her way to a routine win in Austria.
The only shock from the opening day came when sixth seed Sorana Cirstea was sent home by qualifier Julia Goerges 6-3 6-3.
There were no such problems for the remaining seeds, number five Iveta Benesova battling past Stephanie Gehrlein 7-5 6-0, seventh seed Lucie Safarova ousting Patricia Mayr 6-2 6-1 and number eight Sara Errani beating Arantxa Parra Santonja 6-2 6-3.
Also into the second round are Anna-Lena Groenefeld, a 7-5 6-1 winner over Roberta Vinci, Tatjana Malek, who beat Aravane Rezai 7-5 7-5, and Olga Govortsova, a 6-2 6-7(7-9) 6-2 winner over Petra Martic.
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