Hsieh doubles up in Kuala Lumpur

Second seed Hsieh Su-wei notched up two victories on Thursday to move into the quarter-finals of the BMW Malaysian Open in Kuala Lumpur.

The tournament has been blighted by rain and Hsieh was in the first set of her first-round match against Japan's Kurumi Nara on Wednesday night when they were forced off.

They had little rest before resuming on Thursday, with Hsieh coming from a set down to defeat Nara 6-7 (5/7) 6-3 6-4. She then returned to the court later for her second-round match against China's Zhang Shuai, which she won 6-2 6-2.

In the last eight Hsieh will meet American Bethanie Mattek-Sands, who was a comfortable 6-1 6-4 winner over another Chinese player, Duan Ying-Ying.

Australia's Ashleigh Barty, 16, had never won a match on the WTA Tour until her first-round win over Chanel Simmonds, and she followed that up with a second today, beating Zarina Diyas 7-6 (7/3) 6-4.

She next meets third seed Anastasia Pavlyuchenkova after her 6-3 6-3 victory over Akgul Amanmuradova while fourth seed Ayumi Morita saw off Nudnida Luangnam 6-3 6-1.

There was success for another Thai qualifier, though, as Luksika Kumkhum beat seventh seed Eleni Daniilidou 6-2 6-4.

Fifth seed Misaki Doi also fell, beaten 6-4 7-6 (9/7) by Karolina Pliskova, but Chinese qualifier Wang Qiang could not follow up her stunning win over top seed Caroline Wozniacki yesterday and lost 6-3 6-2 to Patricia Mayr-Achleitner.