|Born||14 February 1985|
Kursk, Soviet Union
|Height||1.83 m (6 ft 0 in)|
|Plays||Right-handed (two-handed backhand)|
|Career titles||1 ITF|
|Highest ranking||No. 285 (14 November 2005)|
|Career titles||10 ITF|
|Highest ranking||No. 193 (20 February 2006)|
Julia Efremova née Vorobieva (born 14 February 1985 in Kursk) 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 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 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 qualifying in Bangalore, 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. She won the title with Wynne Prakusya, defeating Seiko Okamoto and Ayami Takase in the final. Her only singles title came in 2004 at Jakarta where she won an $10k event.
|Winner||1.||19 December 2004||ITF Jakarta, Indonesia||Hard||Jung Yoo-mi||3-6, 6-1, 6-3|
|Winner||1.||21 July 2002||ITF Algiers, Algeria||Clay||Aleksandra Kostikova|| Susanne Filipp
|Winner||2.||13 April 2003||ITF Mumbai, India||Hard||Ludmila Richterová|| Akgul Amanmuradova
|Runner-up||1.||8 June 2003||ITF Ankara, Turkey||Clay||Gabriela Velasco Andreu|| Svetlana Mossiakova
|Winner||3.||27 June 2004||ITF Protvino, Russia||Hard||Vasilisa Bardina||6-3, 6-2|
|Runner-up||2.||4 July 2004||ITF Krasnoarmeysk, Russia||Hard||Vasilisa Bardina||6-7(4), 0-6|
|Runner-up||3.||2 August 2004||ITF Vigo, Spain||Hard||Sandra Volk|| Andrea Benítez
|Runner-up||4.||13 December 2004||ITF Jakarta, Indonesia||Hard||Yoo Mi|| Ayu Fani Damayanti
|6-4, 0-6, 5-7|
|Winner||4.||19 December 2004||ITF Jakarta, Indonesia||Hard||Yoo Mi|| Chang Kyung-mi
|Winner||5.||7 March 2005||ITF Benalla, Australia||Grass||Yuan Meng|| Lauren Cheung
|Winner||6.||20 March 2005||ITF Yarrawonga, Australia||Grass||Lara Picone|| Emily Hewson
|Winner||7.||9 April 2005||ITF Mumbai, India||Hard||Chan Chin-wei|| Sanaa Bhambri
|Winner||8.||4 July 2005||ITF Krasnoarmeysk, Russia||Hard||Anna Bastrikova|| Ekaterina Lopes
|Winner||9.||21 August 2005||ITF Nanjing, China||Hard||Xie Yanze|| Tomoko Sugano
|Winner||10.||6 November 2005||Busan Challenger, Korea||Hard||Wynne Prakusya|| Seiko Okamoto
|6-4, 6-7(6), 6-1|
|Runner-up||5.||4 May 2008||ITF Adana, Turkey||Clay||Diana Isaeva|| Hülya Esen
|7-5, 1-6, [4-10]|