No. 7 Patty Schnyder of Switzerland knocked off defending champion and fourth-seeded Anne Kremer of Luxembourg on Friday, 6-3, 6-4, to advance to the semifinals of the $110,000 Volvo Women's Open.

Schnyner, a six-time winner on the WTA Tour, moved into her third semifinal of the year. She also reached the Gold Coast semifinals during the opening week of 2001 and the Vienna final in July.

Kremer, who was making her third straight quarterfinals appearance here, also competed in the 1999 final at the Dusit Resort Pattaya.

Schnyder will face No. 8 Rossana Neffa-de los Rios in Saturday's semifinals. The Paraguayan rallied past Taipei's Su-Wei Hsieh, a qualifier, 1-6, 6-3, 6-4.

The other semifinal pits Slovakia's Henrieta Nagyova, the second seed, against Belarus' Tatiana Poutchek, who advanced to the first tour semifinal of her career.

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