| Julia Efremova | |
| Residence: | Moscow |
| Birth Date: | 1985 2, df=yes |
| Birth Place: | Kursk, Soviet Union |
| Turnedpro: | 2001 |
| Plays: | Right (two-handed backhand) |
| Careerprizemoney: | $45,025 |
| Singlestitles: | 1 ITF |
| Highestsinglesranking: | No. 285 (14 November 2005) |
| Doublestitles: | 10 ITF |
| Highestdoublesranking: | No. 193 (20 February 2006) |
Julia Efremova née Vorobieva (born 14 February 1985) is a former Russian tennis player. She played under her maiden name of Vorobieva (aka Vorobeva) until February 2006. She married her coach Alexey Efremov and returned to the circuit in March 2007.
In her career, Efremova won eleven titles on the ITF Women's Circuit, one in singles and ten in doubles.
She has played on the qualifying draws of WTA Tour tournaments on many occasions. Her career-high singles ranking was world No. 285, which she achieved on 14 November 2005, and her highest doubles ranking No. 193, achieved on 20 February 2006.
In 2003, Julia tried to qualify for her first WTA Tour event in Moscow but fell to Anastasia Rodionova in the first round. In 2005, she played the qualifying draws of five tournaments (Pattaya, Hyderabad, Beijing, Guangzhou and Tashkent) but was unsuccessful in each.
In 2006, she tried to qualify into the Bangalore Open but was overpowered in round one by Daniela Kix. In 2007, she fell in the qualifying draws of Kolkata and Moscow, losing to Sandy Gumulya and Oxana Lyubtsova, respectively.
Julia's biggest title of her career was winning the Busan Challenger doubles event in 2005, partnering with Wynne Prakusya and defeating Seiko Okamoto and Ayami Takase in the final. Her only singles title came in 2004 at Jakarta where she won a $10k event.
| $50,000 tournaments | |
| $25,000 tournaments | |
| $10,000 tournaments |
| Result | No. | Date | Tournament | Surface | Partner | Opponents | Score | |
|---|---|---|---|---|---|---|---|---|
| Win | 1. | 21 July 2002 | ITF Algiers, Algeria | Clay |  Aleksandra Kostikova |  Susanne Filipp  Andrea Masaryková | 6–2, 6–4 | |
| Win | 2. | 13 April 2003 | ITF Mumbai, India | Hard |  Ludmila Richterová |  Akgul Amanmuradova Khoo Chin-bee | 7–5, 7–5 | |
| Loss | 1. | 8 June 2003 | ITF Ankara, Turkey | Clay |  Gabriela Velasco Andreu | Svetlana Mossiakova  Olga Lazarchuk | 4–6, 1–6 | |
| Win | 3. | 27 June 2004 | ITF Protvino, Russia | Hard | Vasilisa Bardina | 6–3, 6–2 | ||
| Loss | 2. | 4 July 2004 | ITF Krasnoarmeysk, Russia | Hard | Vasilisa Bardina | 6–7(4), 0–6 | ||
| Loss | 3. | 2 August 2004 | ITF Vigo, Spain | Hard | Sandra Volk |  Andrea Benítez Estefanía Craciún | 5–7, 4–6 | |
| Loss | 4. | 13 December 2004 | ITF Jakarta, Indonesia | Hard |  Yoo Mi | Ayu Fani Damayanti Septi Mende | 6–4, 0–6, 5–7 | |
| Win | 4. | 19 December 2004 | ITF Jakarta, Indonesia | Hard | Yoo Mi | Chang Kyung-mi Lee Ye-ra | 6–3, 6–3 | |
| Win | 5. | 7 March 2005 | ITF Benalla, Australia | Grass |  Yuan Meng |  Lauren Cheung Lisa D'Amelio | 6–4, 6–3 | |
| Win | 6. | 20 March 2005 | ITF Yarrawonga, Australia | Grass | Lara Picone | Emily Hewson Nicole Kriz | 6–4, 6–3 | |
| Win | 7. | 9 April 2005 | ITF Mumbai, India | Hard | Chan Chin-wei |  Sanaa Bhambri  Mihaela Buzărnescu | 6–2, 6–1 | |
| Win | 8. | 4 July 2005 | ITF Krasnoarmeysk, Russia | Hard | Anna Bastrikova | Ekaterina Lopes Elena Chalova | 6–2, 7–6(3) | |
| Win | 9. | 21 August 2005 | ITF Nanjing, China | Hard | Xie Yanze |  Tomoko Sugano Akiko Yonemura | 6–4, 6–3 | |
| Win | 10. | 6 November 2005 | Busan Challenger, Korea | Hard | Wynne Prakusya | Seiko Okamoto Ayami Takase | 6–4, 6–7(6), 6–1 | |
| Loss | 5. | 4 May 2008 | ITF Adana, Turkey | Clay | Diana Isaeva | Hülya Esen Lütfiye Esen | 7–5, 1–6, [4–10] |