RIYADH: Zheng Qinwen continues to deliver in her breakthrough season, as she advanced to last four of the WTA Finals in Riyadh on Wednesday with a victory over Wimbledon finalist Jasmine Paolini.

The Chinese Olympic gold medalist swept past fourth seed Paolini 6-1, 6-1 in a mere 67 minutes. It was her 30th victory in 35 matches.

Meanwhile, Elena Rybakina claimed a consolation 6-4, 3-6, 6-1 victory over world No. 1 Aryna Sabalenka, who had already secured her semi-final spot as group winner on Monday.

Rybakina, who was already out of the competition after losing her first two matches, finally found form against Sabalenka. It was a much-needed confidence boost for the world No. 5, who missed most of the second half of the season with allergies, insomnia and a back injury.

“It was a tough match and I’m really happy that I managed to win,” said Rybakina, who shared a warm embrace with Sabalenka at the net. “I think it’s nice to finish the year at least with one win against the world No. 1.”

The loss was only Sabalenka’s second in 24 matches. She was yet to learn who she will face in Friday’s semi-final but whatever happens, she has reason to celebrate as she clinched the year-end No. 1 ranking when Iga Swiatek was defeated by Coco Gauff on Tuesday.

However, the Belarusian does not intend to let that achievement distract her from the task at hand, which is to lift the WTA Finals trophy for the first time in her career.

“It’s a really great feeling but I figured that last night and it didn’t work really well tonight for me, so I just want to focus on the current tournament, to stay hungry and stay motivated, because it’s a big tournament and it’s also one of my goals, so I’ll focus on this goal,” Sabalenka said on Wednesday.

In the last day of round-robin action in the Purple Group, Zheng and Paolini were fighting it out for the second qualification spot behind Sabalenka.

Zheng, seeded seventh, locked down her place in the last four with a dominating performance as she became the first Chinese player to make it out of the group stage at the event since Li Na in 2013.

“That was 11 years ago; I’m really proud I could make it,” said the 22-year-old. “I didn’t know what to expect coming to these WTA Finals for the first time. I was in a very difficult group.

“It’s one of the best performances I’ve had during this year. Really good percentage of first serves. I felt really good on my groundstrokes and I made a couple of good volleys. I really enjoyed it.”

An aggressive return earned Zheng her first break of the match in game three and then she broke again and held her serves to go 5-1 up. Paolini, a two-time Grand Slam finalist this season, saved one set point on her own serve in game seven but Zheng kept her foot on the gas to close out the 32-minute set on the second opportunity.

Zheng was just as impressive in the second set, and after saving a break point while serving for the match at 5-1 she closed out the win with her 12th ace of the match.

“I finally feel that my serve has started to be a bit more consistent,” said Zheng, who leads the tour in aces and first-serve points won this season.

This was her fourth victory in as many meetings with Paolini, who will remain in Riyadh to battle for a semi-final spot in the doubles competition alongside fellow Italian Sara Errani.

Since Wimbledon in July, Zheng has recorded the most wins of any woman on the tour. Besides taking gold in the singles at the Olympics, she defended her Palermo title, reached the quarter-finals of the US Open, the semi-finals in Beijing, the final in Wuhan, and lifted the trophy in Tokyo. Three of her five defeats during that run were at the hands of Sabalenka and she said she has been impressed by the Belarusian’s form this season. Zheng’s record against Sabalenka is 0-5, and she said this is a big source of motivation for her.

“She won two slams,” Zheng said. “This is really big achievement for her. And I remember last year, she won her first Grand Slam in the Australian Open. And then she kept going, kept working.

“But you know, both slams that she won this year, I lost against her on the way. Which means if I want to win a slam, I have to be able to beat her. And I’m quite excited for that day.”