Chung Kai-yu

Chang Kai-chen (Chinese: 張凱貞; born January 13, 1991) is a professional Taiwanese tennis player.

Her highest WTA singles ranking is no. 82, which she reached on July 5, 2010. Her career high in doubles is no. 65, which she reached on February 11, 2013.

Chang was born in Taiwan and is a right-handed player. She qualified for the 2009 U.S. Open, where she beat 25th seed Kaia Kanepi, 6–0, 2–6, 6–2, in her first-round match. At the 2009 Toray Pan Pacific Open, Chang defeated world no. 1 Dinara Safina, 7–6, 4–6, 7–5, in her second-round match.

Playing for Taiwan at the Fed Cup, Chang has a win–loss record of 7–5.

Kai-chen is currently without a full-time coach. Her father is Chin Lai Chang and mother is Yu Mei Jun; two older brothers, Yao Lun and Yao Chung (both play tennis). Born and raised in Taiwan, an hour from Taipei; splits training between Taiwan and Delray Beach, Florida (International Tennis Academy). Started playing tennis at age 6 when introduced to sport by brothers at local tennis club. She is an aggressive baseliner whose favorite shot is backhand; favorite surface is hard court. Her ambition is to reach Top 10.

Singles: 1 (0–1)

Outcome	No.	Date	Tournament	Surface	Opponent	Score
Runner-up	1.	14 October 2012	HP Open, Osaka, Japan	Hard	Heather Watson	5–7, 7–5, 6–7(4–7)

Doubles: 4 (4–0)

Outcome	No.	Date	Tournament	Surface	Partner	Opponents	Score
Winner	1.	October 17, 2010	HP Open, Osaka, Japan	Hard	Lilia Osterloh	Shuko Aoyama Rika Fujiwara	6–0, 6–3
Winner	2.	March 4, 2012	Malaysian Open, Kuala Lumpur, Malaysia	Hard (i)	Chuang Chia-jung	Chan Hao-ching Rika Fujiwara	7–5, 6–4
Winner	3.	August 3, 2012	Citi Open, Washington, D.C., United States	Hard	Shuko Aoyama	Irina Falconi Chanelle Scheepers	7–5, 6–2
Winner	4.	March 3, 2013	Malaysian Open, Kuala Lumpur, Malaysia	Hard	Shuko Aoyama	Janette Husárová Zhang Shuai	6–7(4–7), 7–6(7–4), [14–12]

Singles Finals: 14 (6–8)

Outcome	No.	Date	Tournament	Surface	Opponent	Score
Runner-up	1.	12 November 2007	Manila, Philippines	Clay	Nicole Riner	3–6, 2–6
Runner-up	2.	9 February 2008	Mildura, Australia	Grass	Marina Erakovic	3–6, 1–6
Winner	3.	12 May 2008	Kurume, Japan	Carpet	Alexandra Panova	7–5, 6–3
Runner-up	4.	4 May 2009	Fukuoka, Japan	Grass	Nikola Hofmanova	3–6, 2–6
Winner	5.	3 October 2011	Kōfu, Japan	Hard	Mandy Minella	6-4, 1-6, 6-4
Runner-up	6.	4 November 2012	Taipei, Taiwan	Hard	Kristina Mladenovic	4–6, 3–6
Runner-up	7.	31 August 2014	Tsukuba, Japan	Hard	Junri Namigata	0–6 6–7
Winner	8.	9 March 2015	Jiangmen, China	Hard	Zhao Di	6–2, 6–1
Runner-up	9.	31 May 2015	Xuzhou, China	Hard	Luksika Kumkhum	6-1, 5–7, 1-6
Runner-up	10.	2 August 2015	Nanchang, China	Hard	Jelena Janković	3–6, 6–7(6–8)
Winner	11.	28 September 2015	Zhuhai, China	Hard	Zhang Yuxuan	4–6, 6–1, 7–6(7–0)
Winner	12.	2 October 2016	Iizuka Japan	Hard	Jang Su-jeong	6–3, 6–4
Winner	13.	23 October 2016	Suzhou, China	Hard	Wang Yafan	4–6, 6–2, 6–1
Runner-up	14.	20 November 2016	Taipei, Taiwan	Hard (i)	Evgeniya Rodina	4–6, 3–6

Doubles: 20 (12–8)

Outcome	No.	Date	Tournament	Surface	Partner	Opponents	Score
Runner-up	1.	23 July 2006	Bangkok, Thailand	Hard	Nguyễn Thùy Dung	Nungnadda Wannasuk Varatchaya Wongteanchai	4-6, 4-6
Runner-up	2.	21 March 2008	Sorrento, Australia	Hard	Hwang I-hsuan	Monique Adamczak Melanie South	2-6, 4-6
Winner	3.	18 May 2008	Kurume, Japan	Carpet	Hwang I-hsuan	Erika Sema Yurika Sema	6-3, 2-6, 10-6
Runner-up	4.	31 May 2008	Gunma, Japan	Carpet	Hwang I-hsuan	Erika Sema Yurika Sema	3-6, 6-2, 7-10
Winner	5.	15 November 2008	Pune, India	Hard	Hwang I-hsuan	Elora Dabija Bojana Jovanovski	5-7, 6-2, 10-7
Winner	6.	20 April 2009	Changwon, South Korea	Hard	Chen Yi	Elena Baltacha Amanda Elliott	6-4, 6-1
Winner	7.	27 April 2009	Gimcheon, South Korea	Hard	Chen Yi	Chang Kyung-mi Lee Jin-a	6-1, 7-5
Runner-up	8.	17 May 2009	Kurume, Japan	Carpet	Ayaka Maekawa	Lu Jingjing Sun Shengnan	3-6, 2-6
Winner	9.	26 July 2009	Lexington, United States	Hard	Tetiana Luzhanska	Jacqueline Cako Alison Riske	6-3, 6-2
Winner	10.	7 August 2010	Vancouver, Canada	Hard	Heidi El Tabakh	Irina Falconi Amanda Fink	3–6, 6–3, 10–4
Winner	11.	7 November 2010	Taipei City, Taiwan	Carpet (i)	Chuang Chia-jung	Sania Mirza Hsieh Su-wei	6-4, 6-2
Winner	12.	16 September 2012	Ningbo, China	Hard	Shuko Aoyama	Tetiana Luzhanska Zheng Saisai	6-2, 7-5
Runner-up	13.	4 November 2012	Taipei, Taiwan	Hard	Olga Govortsova	Chan Hao-ching Kristina Mladenovic	7–5, 2–6, [8–10]
Runner-up	14.	3 November 2014	Taipei, Taiwan	Carpet (i)	Chuang Chia-jung	Chan Hao-ching Chan Yung-jan	4–6, 3–6
Winner	15.	23 May 2015	Wuhan, China	Hard	Han Xinyun	Liu Chang Lu Jiajing	6–0, 6–3
Winner	16.	31 May 2015	Xuzhou, China	Hard	Han Xinyun	Cao Siqi Zhou Mingjun	6-3, 6-2
Winner	17.	2 August 2015	Nanchang, China	Hard	Zheng Saisai	Chan Chin-wei Wang Yafan	6–3, 4–6, [10–3]
Runner-up	18.	30 July 2016	Wuhan, China	Hard	Duan Yingying	Shuko Aoyama Makoto Ninomiya	4–6, 4–6
Runner-up	19.	14 November 2016	Taipei, Taiwan	Hard (i)	Chuang Chia-jung	Natela Dzalamidze Veronika Kudermetova	6–4, 3–6, [5–10]
Winner	20.	8 May 2017	Cagnes-sur-Mer, France	Clay	Hsieh Su-wei	Raluca Olaru Renata Voráčová	7–5, 6–1

Singles

Doubles