World number two Caroline Wozniacki secured a spot in the season-ending WTA championships when she reached the quarter-finals at the Pan Pacific Open women’s tournament yesterday.

Wozniacki, who was runner-up in last year’s US Open, needed only 70 minutes to beat Anastasia Pavlyuchenkova 6-1, 6-2 to book a place in the WTA championships in Doha from October 26.

“I’m really happy to be playing in Doha. It was a goal for me going into the year to be in the top eight. I’m really happy that I’m the first one to qualify,” said the 20-year-old Dane.

Wozniacki fired an ace to save a break point in the third game, and then took five straight games as Pavlyuchenkova struggled with her serve, hitting a total of seven double faults.

The Russian, trailing 1-4 in the second set, finally broke ­Wozniacki in the sixth game but the deficit was too big for Pavlyu­chenkova to come back.

“I feel I’m playing some good tennis. Today it was a tough match, even though the score was 6-1, 6-2. Anastasia is a good player, so I knew I had to be focused all the way through and I’m happy about the result,” Wozniacki said.

The quarter-final will see the Dane take on her friend Agnieszka Radwanska, who eliminated Andrea Petkovic 6-3, 6-3.

Vera Zvonareva, Francesca ­Schiavone, former champion Elena Dementieva as well as Victoria Azarenka also went through.

Zvonareva, who reached her career highest at fourth in the world after finishing runner-up at the US Open, took the last seven games in a row to score a 6-4, 6-0 victory over Roberta Vinci.

She set up a quarter-final meeting with Beijing Olympic gold medallist Dementieva, the seeded seventh, who had to come back from an early service break down to beat Flavia Pennetta 6-4, 6-2.

Schiavone, ranked eighth in the world, put an end to Kimiko Date Krumm’s giant-killing run with a 6-3, 6-3 victory.

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