SINGAPORE – There may have been no final set haircut, but Svetlana Kuznetsova underlined her box office status at the BNP Paribas WTA Finals Singapore presented by SC Global on Wednesday evening with a thrilling victory over Karolina Pliskova.

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Kuznetsova withstood a spirited late comeback from No.4 seed Pliskova to eventually prevail, 3-6, 6-2, 7-6(6), and confirm her place in the semifinals.

“After my journey here, and all the support of the fans and my team, I couldn’t let everybody down,” Kuznetsova said to Andrew Krasny in her on-court interview. “It’s from my heart. I have not been at my best these past years, but something just changed this year.

“I enjoy my game, I enjoy the crowd, I’m playing against the best players in the world and I really appreciate and am blessed to be here today.”

This rediscovered joie de vivre has been evident for all to see in recent weeks as Kuznetsova embarked on an improbable late push for a Finals place. The Russian went from Asia to Russia in a desperate scramble for points, and so far her body is standing up to the arduous schedule.

Against Pliskova she started slowly, struggling to keep up with a blistering baseline assault. A couple of double faults gift-wrapped the decisive break in the first set, and when she fell behind in the second her prospects looked bleak.

This setback merely roused her into life, a more subtle approach starving the Czech of pace and sparking a run of four straight games. Skipping around second serves and buzzing to all corners of the court, the World No.9 levelled the match with another break before surging ahead in the decider.

The outcome, though, remained in the balance until the last. From 5-3 down, Pliskova went for broke, dragging herself back into contention only to fluff her lines when serving for the match at 6-5. In the tie-break, it was Kuznetsova’s turn to get jittery, watching three match points come and go. At 6-6 she carved out another, following a swinging a serve out wide with a forehand into the open court. This time there was no mistake, as she dragged Pliskova out of position just enough to send the next backhand beyond her reach.

For much of her 20s, Kuznetsova was a fixture at the year-end Finals but never made it beyond the round-robin stage. Now, on her sixth visit, the 31-year-old has finally broken her duck after defending champion Agnieszka Radwanska’s victory over Garbiñe Muguruza confirmed she would top the White Group.

On Thursday, Radwanska and Pliskova will battle it out to determine who joins her in the last four.