Catch up on all the WTA news from Sofia, Taipei and a record-breaking week in Istanbul
WTA Staff

Every week there's a lot happening on the WTA - on the court, off the court, by the numbers, even a few tweets... catch up on it all in this week's WTA Diary.

Eager not to be outdone by Istanbul's never-ending conveyor belt of epic encounters, the Qatar Airways Tournament Of Champions Sofia produced a classic of its own on Tuesday as home favorite Tsvetana Pironkova overcame an early case of stage fright to defeat Zheng Jie in a final set tie-break.

Two days later and the Sofia crowds were served up another treat as Caroline Wozniacki came from a set and 6-5 down to eke out a 36 76(4) 64 win and dash Daniela Hanutchova's hopes of making it to the weekend.

Top 10
Victory over Hantuchova rounded off a flawless round robin stage for Wozniacki and leaves her still in with a shout of finishing the year in the Top 10. Should she see off Pironkova in their semifinal on Saturday, she will gain an 11th hour entry into the Top 10 at the expense of Marion Bartoli.

Away from Sofia, there is plenty more action for tennis fans to feast their eyes on this weekend. In Prague, Petra Kvitova's Czech Republic will defend their Fed Cup title against first-time finalists Serbia, while on the other side of the world, Kristina Mladenovic, Misaki Doi, Chang Kai-Chen and Kurumi Nara are all looking to finish the year with a bang by winning the first of the new WTA 125s, the OEC Taipei WTA Ladies Open.

Class Act
It may have happened nearly a week ago, but it would be rude not to mention Serena Williams' rather impressive victory at the TEB BNP Paribas WTA Championships - Istanbul 2012. As she has been for much of 2012, Serena was a class apart on the banks of the Bosphorus, romping home to the title without dropping a set.

Lucky Number Seven
For Serena it was a (WTA-leading) seventh title of 2012 and also saw her yearly earnings pass the $7 million mark. And she was not the only player in the money in 2012; World No.1 Victoria Azarenka also took home $7 million.

Records Tumble
Serena and Vika are the first players ever to take home this much in prize money in a single year - one of many records to fall in Turkey.

Farewell Kim
It has been two months since Kim Clijsters brought the curtain down on her legendary career, but this winter she will go on one final lap of honor. On December 12 at the Antwerps Sportpaleis, Kim will take on old rival Venus Williams as the showpiece of the quaintly titled 'Kim's Thank You Games'.

Kim Clijsters