Sam Stosur, Francesca Schiavone, Victoria Azarenka and Elena Dementieva also won but Dinara Safina was beaten.
Venus Williams, Caroline Wozniacki and Victoria Azarenka are also participating in the event in Hong Kong.
She was only stopped by eventual winner Victoria Azarenka, the current world number one.
She has lost Key Biscayne finals to Kim Clijsters, Svetlana Kuznetsova, Victoria Azarenka and Agnieszka Radwanska.
This year's entry list includes new No. 1 and Australian Open champion Victoria Azarenka.
The pair narrowly lost to Belarus' Max Mirnyi and Victoria Azarenka, 2-6, 6-3 , 10-8.
Defending champion and top seed Victoria Azarenka was made to work harder on Saturday.
Elsewhere, Serena Williams set up a semifinal showdown with world number one Victoria Azarenka.
Meanwhile, top-ranked Victoria Azarenka will play world No. 2 Maria Sharapova in Sunday's women's final in Indian Wells.
Clijsters, seemingly charmed, was in the midst of another astonishing comeback against Victoria Azarenka in the semifinals, then crumbled.
In 2012, the right-hander led Victoria Azarenka 6-1, 5-2 before succumbing to defeat.
Victoria Azarenka, who won Saturday's women's singles final over Li Na, was also there with her boyfriend rapper Redfoo.
Top seed Victoria Azarenka and Maria Sharapova are also in the last four.
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Last year she beat 2013 Australian Open champion Victoria Azarenka in the Stuttgart final before claiming her Roland Garros triumph.
Like Sharapova, Australian Open champ Victoria Azarenka struggled with her serve, but she rallied past Frenchwoman Alize Cornet 4-6, 6-3, 6-1.
Third seed Victoria Azarenka will face 19-year-old German Annika Beck in the next round following a routine win over Elena Vesnina.
Wozniacki, who lost top spot in the world rankings after Victoria Azarenka won January's Melbourne grand slam, was philosophical in defeat.
In the women's draw, world No. 2 Maria Sharapova and third-ranked Victoria Azarenka reached the last 16 despite struggling with their serves.
In the women's draw defending champion and world No. 1 Victoria Azarenka, from Belarus, could face nemesis Serena Williams in the semifinals.
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She defeated third seed Victoria Azarenka of Belarus 6-7 (4-7) 6-4 6-2 as the match stretched to two and a half hours.
The women's quarterfinals were blighted by injury after defending champion Victoria Azarenka and seventh seed Sam Stosur both pulled out with injury.
Vika appeared to be such a glossier prime-time match women's No. 1 Serena Williams would square off with promising nemesis Victoria Azarenka.
Meanwhile, women's No.1 Victoria Azarenka claimed her sixth title this season when she beat German Julia Goerges in straight sets in Linz.
The American will play Victoria Azarenka in the final after the Belarusian overcame Poland's Agnieszka Radwanska in straight sets in the second semi-final.
In the women's draw, top seed Victoria Azarenka came from a set down to beat Belgian No. 28 Kirsten Flipkens 3-6 6-3 6-0.
The American faces a rematch of her Wimbledon semifinal against world No. 1 Victoria Azarenka after overpowering eighth seed Caroline Wozniacki 6-0 6-3.
She is followed by world number two Victoria Azarenka of Belarus and Poland's Agnieszka Radwanska, with reigning Wimbledon champion Petra Kvitova seeded fourth.
The women's 2011 winner Sam Stosur was drawn against Croatia's Petra Martic, with top seed Victoria Azarenka playing world No. 74 Alexandra Panova.
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Also through is sixth seed Victoria Azarenka of Belarus, who looked in impressive form as she thrashed ninth-seeded Dane Caroline Wozniacki 6-2 6-2.
Earlier in the day, Victoria Azarenka stepped on the court for the first time this week (her match was canceled Tuesday because of rain).
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