Hsieh Su-Wei and Peng Shuai put on an impressive display in kicking off their last event as a duo on Wednesday, beating Garbiñe Muguruza and Carla Suárez Navarro in the quarterfinals of the BNP Paribas WTA Finals Singapore presented by SC Global.
Though the defending champions went down a break at 3-2 in the first set, they caught fire from there, winning four of five games to take the first set. They then raced out to a 5-0 second set lead, eventually closing out a 6-4, 6-1 triumph.
"It's great to play in Singapore in front of all the Chinese people," Hsieh said. "We are very happy and excited to be here."
Hsieh and Peng improved to 3-1 against the Spaniards, having previously lost to them this year in Madrid, and defeated them at the French Open and in Montréal.
"It's exciting to play in the first WTA Finals in Singapore," Peng said. "There are so many Chinese fans supporting us. It's amazing to play here and to win our first match."
In Saturday's semifinals, Hsieh and Peng will square off with Alla Kudryavtseva and Anastasia Rodionova, whom they have never played. The Russian-Australian duo upset Ekaterina Makarova and Elena Vesnina in their quarterfinal match.
"I played them in Beijing," said Peng referring to her win over the pair alongside Andrea Hlavackova. "They're a good team. They both like the baseline and are doing well this year. We'll try out best to focus and fight."
Hsieh and Peng, who have 12 WTA titles as a combination including two Grand Slams, are teaming up with other partners next year.