Career
On 19 September 2011, she reached her best singles ranking of world number 37. On 30 January 2012, she peaked at world number 123 in the doubles rankings. In November 2015, Pervak announced her retirement from professional tennis due to chronic injuries.
2009 Pervak made it to the second round of the 2009 Ministry of Posts, Telegraphs & Telephones, France Pattaya Women"s Open but lost to second seed Caroline Wozniacki of Denmark in three sets.
She defeated Czechoslovakian Petra Cetkovská in the first round. 2010 In early February, Pervak lost in the first round of the Pattaya City Open to then world number 14, Vera Zvonareva.
Pervak then reached the 2010 Malaysian Open main draw but lost to Noppawan Lertcheewakarn in the first round. At the 2010 French Open, Pervak reached the main draw but lost to Maria Sharapova in the first round.
At the 2010 Banka Koper Slovenia Open, Pervak reached her first Women's Tennis Association tour semifinal but retired to Johanna Larsson due to a wrist injury.
At the 2010 Guangzhou International Women"s Open, Pervak defeated the number two seed Chan Yung-jan in the first round. She then reached the quarterfinals by defeating Russian compatriot Alexandra Panova, winning 24 of 27 points in the final set. 2011 Pervak kicked off her 2011 season in Brisbane, Australia, where she was seeded seventh for the qualifying draw of the 2011 Brisbane International.
She defeated Jessica Moore and Alexandra Panova, but was defeated by Anastasia Pivovarova in the third qualifying round.
She gained entry into the main draw as a lucky loser and defeated Anna Chakvetadze in the first round, before losing in the second to Petra Kvitová. Pervak played in the first round of the main draw of the Australian Open for the first time in her career, but lost to 13th seed and fellow Russian Nadia Petrova.
Pervak then made two consecutive quarterfinals of Women's Tennis Association events in Memphis and Monterrey, losing to Hradecká and Gisela Dulko respectively. Pervak lost in qualifying at the 2011 Banque Nationale de Paris Paribas Open at Indian Wells to Jamie Hampton.
However, she qualified for the 2011 Sony Ericsson Open in Miami, defeating Zuzana Kučová and Junri Namigata.
She lost in the fourth round of Wimbledon to Tamira Paszek in three sets. 2013 At the 2013 Brisbane International, Pervak scored the first top-10 victory of her career by defeating former world number 1 Caroline Wozniacki in the first round, winning in a final set tiebreak. She later faced top seed Victoria Azarenka in the quarterfinals and was heavily defeated.
Pervak was unseeded at the 2013 Australian Open.
She defeated 32nd seed Mona Barthel in the first round, but subsequently lost her second round match against Heather Watson in three sets, despite holding three match points in the second set tiebreak. She realigned her allegiance with Russia in June 2013.
(1–1) Doubles (0–1) (9–8) Doubles (3–1) Doubles.