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|Born||9 March 1991|
|Plays||Right-handed (two-handed backhand)|
|Career record||188-170 (52.5%)|
|Career titles||2 ITF|
|Highest ranking||No. 241 (19 March 2012)|
|Career record||76-85 (47.2%)|
|Career titles||2 ITF|
|Highest ranking||No. 182 (29 August 2011)|
Arefyeva began tennis at the age of six and was coached by Igor Dernovskyy. In 2005, she played her first professional match at a $10k tournament in Kiev where she had received a wildcard.
In 2006, Tetyana played in Kiev once more, this time advancing past the first round, before losing to Agnese Zucchini in three sets. She also played in Kharkiv and Volos. She qualified for Kharkiv and received a wildcard into Volos. She played in the qualifying draws of all the ITF events in Cairo. She fell in qualifying for all three of them but she won two doubles matches in Cairo.
Arefyeva played lots more tournaments on the ITF Circuit 2007, reaching a quarterfinal at Tampere in Finland. She finished the year ranked at 769. In doubles, Tetyana teamed with Elena Jirnova to reach the final at Gausdal in Norway.
In February 2008, she won her first ITF title at Melilla in Spain. She also reached finals in Astana and Athens but lost to Alice Moroni and Zarina Diyas, respectively. She also reached a final in Arezzo but lost in straight sets. She ended the year ranked 613 in singles and 727 in doubles.
In 2009, Arefyeva became 18 and began a series of successful results. In Portimão in Portugal, she reached the semifinals defeating Stéphanie Vongsouthi en route. She completed back-to-back finals at Antalya and Almaty. She lost in Turkey to Irini Georgatou but won in Almaty, defeating Daria Kuchmina. At a $25k event in Namangan, Uzbekistan, Tetyana reached the final by defeating Ksenia Palkina, Ça?la Büyükakçay and Sofia Kvatsabaia. She was defeated in the final by Kristina Antoniychuk, 6-0, 6-1.
|Win||1.||23 February 2008||ITF Melilla, Spain||Hard||Dessislava Mladenova||6-1, 7-6|
|Loss||2.||24 March 2008||ITF Athens, Greece||Hard||Alice Moroni||3-6, 4-6|
|Loss||3.||17 November 2008||ITF Astana, Kazakhstan||Hard||Zarina Diyas||5-7, 4-6|
|Loss||4.||13 April 2009||ITF Antalya, Turkey||Hard||Eirini Georgatou||3-6, 7-6, 5-7|
|Win||5.||20 April 2009||ITF Almaty, Kazakhstan||Hard||Daria Kuchmina||6-2, 6-1|
|Loss||6.||27 April 2009||ITF Namangan, Uzbekistan||Hard||Kristina Antoniychuk||0-6, 1-6|
|Loss||7.||25 April 2011||ITF Qarshi, Uzbekistan||Hard||Isabella Holland||5-7, 4-6|
|Loss||1.||22 July 2007||ITF Gausdal, Norway||Hard||Elena Jirnova|| Maja Kambi?
|6-7, 7-5, 3-6|
|Loss||2.||11 February 2008||ITF Arezzo, Italy||Clay||Aude Vermoezen|| Giulia Gatto-Monticone
|Loss||3.||13 April 2009||ITF Antalya, Turkey||Hard||Anastasiya Lytovchenko|| Ça?la Büyükakçay
|Win||4.||20 April 2009||ITF Almaty, Kazakhstan||Hard||Anastasiya Lytovchenko|| Ima Bohush
|Loss||5.||28 June 2010||ITF Ystad, Sweden||Clay||Anastasiya Lytovchenko|| Mervana Jugi?-Salki?
|Loss||6.||1 November 2010||ITF Ismaning, Germany||Carpet (i)||Yuliana Fedak|| Kristina Barrois
|Loss||7.||6 December 2010||ITF Dubai, United Arab Emirates||Hard||Yuliana Fedak|| Elena Chalova
|Win||8.||25 April 2011||ITF Qarshi, Uzbekistan||Hard||Eugeniya Pashkova|| Isabella Holland
|6-7, 7-5, 6-4|
|Loss||9.||11 March 2013||ITF Orlando, United States||Clay||Kate?ina Kramperová|| Nikola Fra?ková
|5-7, 6-2, [8-10]|