Sun Shengnan

Sun Shengnan (; ; born 21 January 1987) is a Chinese former tennis player. Her highest WTA singles ranking is 216th, which she reached on 4 April 2011. Her career-high in doubles is 50th, which she reached on 17 September 2007.

By March 2006, Sun had won two ITF singles titles and risen to No. 320 in the WTA rankings, and had earned herself a reputation as 'one to watch', having shown plenty of recent promise of further improvement in the preceding year.

Career Sun Shengnan began competing on the ITF Women's Circuit at the age of 15, in May 2002. Over the next few months, she won seven matches (mostly in qualifying draws) and lost just five. However, she did not compete again for a whole year after the beginning of August, and thus gained for herself only a lowly end-of-year foothold on the world ranking list at No. 1031.

When August finally came around again in 2003, she returned to competition as a 16-year-old at ITF events; and that October she reached the quarterfinal of a $25k tournament at Beijing after being awarded a wildcard entry into the main draw, before losing to Yuka Yoshida. She finished the year with a 5–5 win–loss record after just a few events played. The record of her year-end ranking seems to have been lost by the WTA, but it was undoubtedly an improvement on her 2002 outcome thanks to the quarterfinal finish at Beijing.

2004 was another moderate year for Sun, as she won six matches and lost seven, her best finish again coming at October's $25k tournament at Beijing, where she repeated her previous year's performance in reaching the quarterfinal, this time losing to high-ranked countrywoman Zheng Jie. She finished the year world-ranked 588, which logically should have been similar to her previous year's finish.

But it was to be in 2005 that the Chinese teenager would first break through to greater results, including two tournament wins. In February, she reached her career-first semifinal in the $10k tournament at Melilla. In April, she won the $10k event at Wuhan. Then in May, she won another $10k title at Ahmedabad. In August, she reached the final of a $25k fixture at Wuxi, losing to Miho Saeki of Japan. Then in September, she qualified for her first WTA Tour event at Guangzhou International Open with an impressive three-set victory over the young Croat prospect Ivana Lisjak, but lost in the first round of the main draw to Alina Jidkova of Russia. At the end of the year, her world ranking had leapt up to 336.

In January 2006, she suffered a few early losses, but picked up enough points in qualifying rounds to improve to a career-best ranking of 311 early in February. Then she defended but did not improve upon her previous year's semifinal performance at Melilla.

With youth still very much on her side, the 19-year-old appeared to be one of China's hottest next-generation prospects for advancement into the world's top 150. But after rising to a career high of No. 233 in May 2007, a dismal run of early losses over the summer and Autumn that year caused her ranking to slip back to No. 400 by the beginning of December the same year before a quarterfinal result at a $75k tournament that month revived it to around 350 at the close of the year.

She then started the year off in 2011, making the semifinals in the $50k event at Quanzhou moving her rankings up to world No. 248.

WTA Tour finals Doubles: 3 (1 title, 2 runner-ups)

Legend (pre/post 2009) Grand Slam tournaments Tier I / Premier M & Premier 5 Tier II / Premier Tier III, IV & V / International (1–2)

Finals by surface Hard (1–1) Grass (0–0) Clay (0–1) Carpet (0–0)

Outcome No. Date Tournament Surface Partner OpponentsScore Runner-up 1. 13 May 2007 Prague Open, Czech Republic Clay Ji Chunmei Petra Cetkovská Andrea Hlaváčková 6–7(7–9), 2–6 Winner 1. 16 September 2007 Bali Tennis Classic, Indonesia Hard Ji Chunmei Jill Craybas Natalie Grandin 6–3, 6–2 Runner-up 2. 13 February 2011 Pattaya Open, Thailand Hard Zheng Jie Sara Errani Roberta Vinci 6–3, 3–6, [5–10]

ITF Circuit finals Legend$100,000 tournaments$75,000 tournaments$50,000 tournaments$25,000 tournaments$10,000 tournaments

Singles: 8 (6–2) Outcome No. Date Tournament Surface Opponent Score Winner 1. Apr 2005 ITF Wuhan, China Hard Liang Chen 6–3, 4–6, 6–3 Winner 2. May 2005 ITF Ahmedabad, India Hard Ankita Bhambri 6–2, 6–2 Runner–up 1. Aug 2005 ITF Wuxi, China Hard Miho Saeki 2–6, 6–7(1) Winner 3. Sep 2006 ITF Guangzhou, China Hard Yurika Sema 6–2, 6–4 Winner 4. Jun 2009 ITF Qianshan, China Hard Han Xinyun 6–1, 6–4 Winner 5. Aug 2009 ITF Pingguo, China Hard Zhou Yimiao 6–4, 6–4 Winner 6. Aug 2009 ITF Qianshan, China Hard Liang Chen 6–3, 6–3 Runner–up 2. May 2010 Kangaroo Cup, Japan Hard Karolína Plíšková 3–6, 6–3, 3–6

Doubles: 43 (26–17) Outcome No. Date Tournament Surface Partner Opponents Score Runner–up 1. 27 February 2005 ITF Melilla, Spain Hard Yang Shujing Sara Errani María José Martínez Sánchez 7–6(2), 0–6, 5–7 Runner–up 2. 29 May 2005 ITF Shanghai, China Hard Liu Wanting Chuang Chia-jung Remi Tezuka 6–4, 4–6, 1–6 Winner 3. 26 February 2006 ITF Melilla, Spain Hard Liu Wanting Sara del Barrio Aragón Sabrina Méndez Domínguez 6–4, 6–0 Winner 4. 4 June 2006 ITF Tianjin, China Hard Ji Chunmei Chan Chin-wei Chen Yi 3–6, 7–6(7), 6–1 Runner–up 5. 23 July 2006 ITF Chongqing, China Hard Ji Chunmei Ren Jing Zhang Shuai 4–6, 3–6 Runner–up 6. 27 August 2006 ITF Nanjing, China Hard Ji Chunmei Chuang Chia-jung Xie Yanze 1–6, 6–7(11) Winner 7. 29 October 2006 Beijing Challenger, China Hard (i) Ji Chunmei Marina Erakovic Raquel Kops-Jones 6–2, 6–2 Winner 8. 5 November 2006 ITF Shanghai, China Hard Ji Chunmei Akgul Amanmuradova Iroda Tulyaganova 6–4, 7–5 Winner 9. 14 October 2007 ITF Beijing, China Hard Ji Chunmei Liang Chen Zhao Yijing 6–2, 6–3 Winner 10. 11 November 2007 ITF Taizhou, China Hard Ji Chunmei Huang Lei Zhang Shuai 7–6(5), 1–6, [13–11] Runner-up 11. 2 December 2007 ITF Xiamen, China Hard Ji Chunmei Han Xinyun Xu Yifan 4–6, 5–7 Winner 12. 14 March 2008 ITF New Delhi, İndia Hard Ji Chunmei Sunitha Rao Aurélie Védy 2–6, 6–2, [10–4] Runner-up 13. 21 November 2008 ITF Kolkata, İndia Hard Lu Jingjing Laura Siegemund Ágnes Szatmári 5–7, 3–6 Winner 14. 13 February 2009 ITF Mildura, Australia Grass Lu Jingjing Han Xinyun Ji Chunmei 7–6(2), 7–6(4) Runner-up 15. 21 February 2009 ITF Guangzhou, China Hard Han Xinyun Ji Chunmei Liang Chen 7–6(7), 2–6, [3–10] Winner 16. 8 March 2009 ITF Lyon, France Hard (i) Lu Jingjing Pemra Özgen Zhang Shuai 6–4, 7–5 Winner 17. 14 March 2009 ITF Las Palmas, Spain Hard Lu Jingjing Yana Buchina Taja Mohorcic 6–3, 7–6(1) Winner 18. 21 March 2009 ITF Tenerife, Spain Hard Zhang Shuai Paula Fondevila Castro Laura Thorpe 6–1, 6–2 Winner 19. 27 March 2009 ITF La Palma, Spain Hard Lu Jingjing Eleni Daniilidou Jasmin Wöhr 6–2, 5–7, [10–5] Winner 20. 17 May 2009 Kurume Cup, Japan Grass Lu Jingjing Chang Kai-chen Ayaka Maekawa 6–3, 6–2 Winner 21. 24 May 2009 Incheon Open, Korea Hard Lu Jingjing Han Xinyun Ji Chunmei 6–3, 6–3 Runner-up 22. 31 May 2009 ITF Goyang, Korea Hard Lu Jingjing Yayuk Basuki Romana Tedjakusuma 6–7(5), 3–6 [8–10] Runner-up 23. 7 June 2009 ITF Gimhae, Korea Hard Liang Chen Yayuk Basuki Romana Tedjakusuma 5–7, 1–6 Winner 24. 27 June 2009 ITF Qianshan, China Hard Zhou Yimiao Han Xinyun Ying Qian 6–2, 6–4 Winner 25. 3 July 2009 ITF Xiamen, China Hard Lu Jingjing Han Xinyun Kao Shao-yuan 6–2, 6–4 Runner-up 26. 21 August 2009 ITF Pingguo, China Hard Lu Jingjing Chan Chin-wei Hwang I-hsuan 6–3, 5–7, [7–10] Winner 27. 28 August 2009 ITF Qianshan, China Hard Liang Chen Alison Bai Sacha Jones 6–2, 6–4 Winner 28. 10 May 2010 Kurume Cup, Japan Grass Xu Yifan Karolína Plíšková Kristýna Plíšková 6–0, 6–3 Runner-up 29. 17 May 2010 ITF Karuizawa, Japan Carpet Xu Yifan Ayumi Oka Akiko Yonemura 6–7(1), 3–6 Winner 30. 2 August 2010 Beijing Challenger, China Hard Zhang Shuai Ji Chunmei Liu Wanting 4–6, 6–2, [10–5] Runner–up 31. 14 August 2010 ITF Tallinn, Estonia Hard Lu Jingjing Emma Laine Melanie South 3–6, 4–6 Winner 32. 3 January 2011 Blossom Cup, China Hard Liu Wanting Yuliya Beygelzimer Oksana Kalashnikova 6–3, 6–2 Runner-up 33. 10 January 2011 ITF Pingguo, China Hard Liu Wanting Shuko Aoyama Rika Fujiwara 4–6, 3–6 Runner-up 34. 23 May 2011 Grado Tennis Cup, Italy Clay Liu Wanting María Irigoyen Ekaterina Lopes 3–6, 0–6 Winner 35. 16 July 2011 Challenger de Granby, Canada Hard Sharon Fichman Viktoriya Kisialeva Nathalia Rossi 6–4, 6–2 Runner-up 36. 26 March 2012 ITF Phuket, Thailand Hard Han Xinyun Noppawan Lertcheewakarn Zheng Saisai 3–6, 3–6 Winner 37. 14 May 2012 Kurume Cup, Japan Grass Han Xinyun Ksenia Lykina Melanie South 6–1, 6–0 Runner-up 38. 28 May 2012 ITF Gimcheon, Korea Hard Liang Chen Hu Yueyue Xu Yifan 0–6, 6–3, [7–10] Winner 39. 18 June 2012 ITF Goyang, Korea Hard Liu Wanting Nicha Lertpitaksinchai Peangtarn Plipuech 6–7(1), 6–3, [10–7] Winner 40. 30 June 2012 Incheon Open, Korea Hard Liang Chen Kim Ji-young Yoo Mi 6–3, 6–2 Winner 41. 5 August 2012 Beijing Challenger, China Hard Liu Wanting Chan Chin-wei Han Xinyun 5–7, 6–0, [10–7] Runner-up 42. 3 January 2013 Blossom Cup, China Hard Liang Chen Irina Buryachok Nadiia Kichenok 6–3, 3–6, [10–12] Winner 43. 24 June 2013 ITF Huzhu, China Clay Chan Chin-wei Liu Chang Zhou Yimiao 6–4, 6–3