# Chang Kai-chen

Chang Kai-chen (Chinese: 張凱貞; pinyin: Zhāng Kǎizhēn; Taiwanese Mandarin:; born January 13, 1991), also known as Kelly Chang, is a Taiwanese former professional tennis player.

## Career

Her father is Chang Chin-lai and mother is Jun Yu-mei; she has two older brothers, Yao-lun and Yao-chung (both play tennis). Born and raised in Taiwan, an hour from Taipei, Chang splits training between Taiwan and Delray Beach, Florida (International Tennis Academy). She started playing tennis at age six when introduced to sport by brothers at local tennis club. She is an aggressive baseliner whose favorite shot is backhand, her favorite surface is hardcourt.
She qualified for the 2009 US Open, where she beat 25th seed Kaia Kanepi 6–0, 2–6, 6–2 in her first-round match. At the 2009 Pan Pacific Open, Chang defeated world No. 1, Dinara Safina, 7–6, 4–6, 7–5 in her second-round match.
In July 2010, she reached her career-high singles ranking of world No. 82. In February 2013, she peaked at No. 65 in the WTA doubles rankings.
Playing for Chinese Taipei Fed Cup team, Chang has a win–loss record of 10–8.

## Grand Slam performance timelines

Key :
| W | F | SF | QF | #R | RR | Q# | P# | DNQ | A | Z# | PO | G | S | B | NMS | NTI | P | NH |

### Singles

| Tournament | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | W–L |
| Australian Open | A | 1R | 1R | 2R | 1R | A | 2R | Q2 | Q2 | 2–5 |
| French Open | A | 1R | Q2 | 1R | Q1 | A | A | Q1 | Q2 | 0–2 |
| Wimbledon | A | 2R | 1R | A | A | A | A | Q3 | 1R | 1–3 |
| US Open | 2R | 2R | A | A | A | A | Q1 | Q1 | A | 2–2 |
| Win–loss | 1–1 | 2–4 | 0–2 | 1–2 | 0–1 | 0–0 | 1–1 | 0–0 | 0–1 | 5–12 |

### Doubles

| Tournament | 2010 | 2011 | 2012 | 2013 | 2017 | 2018 | 2019 | W–L |
| Australian Open | | | | 1R | | | 1R | 0–2 |
| French Open | 1R | 1R | | 1R | | | | 0–3 |
| Wimbledon | 2R | 1R | | | 2R | | | 2–3 |
| US Open | 1R | | | | | | | 0–1 |
| Win–loss | 1–3 | 0–2 | 0–0 | 0–2 | 1–1 | 0–0 | 0–1 | 2–9 |

## WTA career finals
### Singles: 1 (runner–up)

* Legend
* Grand Slam tournaments
* Premier M & Premier 5
* Premier
* International (0–1)
* Finals by surface
* Hard (0–1)
* Clay (0–0)
* Grass (0–0)
* Carpet (0–0)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Loss | 0–1 | Oct 2012 | Japan Women's Open | International | Hard | Heather Watson | 5–7, 7–5, 6–7$^{(4)}$ |

### Doubles: 4 (4 titles)

* Legend
* Grand Slam tournaments
* Premier M & Premier 5
* Premier
* International (4–0)
* Finals by surface
* Hard (4–0)
* Grass (0–0)
* Clay (0–0)
* Carpet (0–0)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Win | 1–0 | Oct 2010 | Japan Women's Open | International | Hard | Lilia Osterloh | Shuko Aoyama Rika Fujiwara | 6–0, 6–3 |
| Win | 2–0 | Mar 2012 | Malaysian Open | International | Hard | Chuang Chia-jung | Chan Hao-ching Rika Fujiwara | 7–5, 6–4 |
| Win | 3–0 | Aug 2012 | Washington Open | International | Hard | Shuko Aoyama | Irina Falconi Chanelle Scheepers | 7–5, 6–2 |
| Win | 4–0 | Mar 2013 | Malaysian Open | International | Hard | Shuko Aoyama | Janette Husárová Zhang Shuai | 6–7$^{(4)}$, 7–6$^{(4)}$, [14–12] |

## WTA 125 tournament finals
### Singles: 3 (3 runner-ups)

| Result | W–L | Date | Tournament | Surface | Opponent | Score |
| Loss | 0–1 | Nov 2012 | Taipei Challenger, Taiwan | Hard (i) | Kristina Mladenovic | 4–6, 3–6 |
| Loss | 0–2 | Aug 2015 | Jiangxi International, China | Hard | Jelena Janković | 3–6, 6–7$^{(6)}$ |
| Loss | 0–3 | Nov 2016 | Taipei Challenger, Taiwan | Hard (i) | Evgeniya Rodina | 4–6, 3–6 |

### Doubles: 4 (1 title, 3 runner-ups)

| Result | W–L | Date | Tournament | Surface | Partner | Opponents | Score |
| Loss | 0–1 | Nov 2012 | Taipei Challenger, Taiwan | Hard (i) | Olga Govortsova | Chan Hao-ching Kristina Mladenovic | 7–5, 2–6, [8–10] |
| Loss | 0–2 | Nov 2014 | Taipei Challenger, Taiwan | Carpet (i) | Chuang Chia-jung | Chan Hao-ching Chan Yung-jan | 4–6, 3–6 |
| Win | 1–2 | Aug 2015 | Jiangxi International, China | Hard | Zheng Saisai | Chan Chin-wei Wang Yafan | 6–3, 4–6, [10–3] |
| Loss | 1–3 | Nov 2016 | Taipei Challenger, Taiwan | Hard (i) | Chuang Chia-jung | Natela Dzalamidze Veronika Kudermetova | 6–4, 3–6, [5–10] |

## ITF Circuit finals

* Legend
* $100,000 tournaments
* $75,000 tournaments
* $50/60,000 tournaments
* $25,000 tournaments
* $10,000 tournaments

### Singles: 11 (6 titles, 5 runner–ups)

| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Loss | 0–1 | Nov 2007 | ITF Manila, Philippines | 10,000 | Clay | Nicole Riner | 3–6, 2–6 |
| Loss | 0–2 | Feb 2008 | ITF Mildura, Australia | 25,000 | Grass | Marina Erakovic | 3–6, 1–6 |
| Win | 1–2 | May 2008 | Kurume Cup, Japan | 50,000 | Carpet | Alexandra Panova | 7–5, 6–3 |
| Loss | 1–3 | May 2009 | Fukuoka International, Japan | 50,000 | Grass | Nikola Hofmanova | 3–6, 2–6 |
| Win | 2–3 | Oct 2011 | Kōfu International Open, Japan | 50,000 | Hard | Mandy Minella | 6–4, 1–6, 6–4 |
| Loss | 2–4 | Aug 2014 | ITF Tsukuba, Japan | 25,000 | Hard | Junri Namigata | 0–6, 6–7 |
| Win | 3–4 | Mar 2015 | ITF Jiangmen, China | 10,000 | Hard | Zhao Di | 6–2, 6–1 |
| Loss | 3–5 | May 2015 | ITF Xuzhou, China | 50,000 | Hard | Luksika Kumkhum | 6–1, 5–7, 1–6 |
| Win | 4–5 | Sep 2015 | Zhuhai Open, China | 50,000 | Hard | Zhang Yuxuan | 4–6, 6–1, 7–6$^{(0)}$ |
| Win | 5–5 | Oct 2016 | ITF Iizuka, Japan | 25,000 | Hard | Jang Su-jeong | 6–3, 6–4 |
| Win | 6–5 | Oct 2016 | Suzhou Ladies Open, China | 50,000 | Hard | Wang Yafan | 4–6, 6–2, 6–1 |

### Doubles: 24 (16 titles, 8 runner–ups)

| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Loss | 0–1 | Jul 2006 | ITF Bangkok, Thailand | 10,000 | Hard | Nguyễn Thùy Dung | Nungnadda Wannasuk Varatchaya Wongteanchai | 4–6, 4–6 |
| Loss | 0–2 | Mar 2008 | ITF Sorrento, Australia | 25,000 | Hard | Hwang I-hsuan | Monique Adamczak Melanie South | 2–6, 4–6 |
| Win | 1–2 | May 2008 | Kurume Cup, Japan | 50,000 | Carpet | Hwang I-hsuan | Erika Sema Yurika Sema | 6–3, 2–6, [10–6] |
| Loss | 1–3 | May 2008 | ITF Gunma, Japan | 25,000 | Carpet | Hwang I-hsuan | Erika Sema Yurika Sema | 3–6, 6–2, [7–10] |
| Win | 2–3 | Nov 2008 | Pune Championships, India | 25,000 | Hard | Hwang I-hsuan | Elora Dabija Bojana Jovanovski | 5–7, 6–2, [10–7] |
| Win | 3–3 | Apr 2009 | ITF Changwon, South Korea | 25,000 | Hard | Chen Yi | Elena Baltacha Amanda Elliott | 6–4, 6–1 |
| Win | 4–3 | Apr 2009 | ITF Gimcheon, South Korea | 25,000 | Hard | Chen Yi | Chang Kyung-mi Lee Jin-a | 6–1, 7–5 |
| Loss | 4–4 | May 2009 | Kurume Cup, Japan | 50,000 | Carpet | Ayaka Maekawa | Lu Jingjing Sun Shengnan | 3–6, 2–6 |
| Win | 5–4 | Jul 2009 | Lexington Challenger, United States | 50,000 | Hard | Tetiana Luzhanska | Jacqueline Cako Alison Riske | 6–3, 6–2 |
| Wi | 6–4 | Aug 2010 | Vancouver Open, Canada | 75,000 | Hard | Heidi El Tabakh | Irina Falconi Amanda Fink | 3–6, 6–3, [10–4] |
| Win | 7–4 | Nov 2010 | Taipei Ladies Open, Taiwan | 100,000 | Carpet (i) | Chuang Chia-jung | Sania Mirza Hsieh Su-wei | 6–4, 6–2 |
| Win | 8–4 | Sep 2012 | Ningbo International, China | 100,000 | Hard | Shuko Aoyama | Tetiana Luzhanska Zheng Saisai | 6–2, 7–5 |
| Win | 9–4 | May 2015 | ITF Wuhan, China | 50,000 | Hard | Han Xinyun | Liu Chang Lu Jiajing | 6–0, 6–3 |
| Win | 10–4 | May 2015 | ITF Xuzhou, China | 50,000 | Hard | Han Xinyun | Cao Siqi Zhou Mingjun | 6–3, 6–2 |
| Loss | 10–5 | Jul 2016 | ITF Wuhan, China | 50,000 | Hard | Duan Yingying | Shuko Aoyama Makoto Ninomiya | 4–6, 4–6 |
| Win | 11–5 | May 2017 | Open de Cagnes-sur-Mer, France | 100,000 | Clay | Hsieh Su-wei | Raluca Olaru Renata Voráčová | 7–5, 6–1 |
| Win | 12–5 | May 2017 | Open Saint-Gaudens, France | 60,000 | Clay | Han Xinyun | Montserrat González Sílvia Soler Espinosa | 7–5, 6–1 |
| Loss | 12–6 | Jun 2017 | Surbiton Trophy, UK | 100,000 | Grass | Marina Erakovic | Monique Adamczak Storm Sanders | 4–6, 5–7 |
| Loss | 12–7 | Jun 2017 | Manchester Trophy, UK | 100,000 | Grass | Marina Erakovic | Magdalena Fręch An-Sophie Mestach | 4–6, 6–7$^{(5)}$ |
| Loss | 12–8 | May 2018 | ITF Incheon, Korea | 25,000 | Hard | Hsu Ching-wen | Han Na-lae Kim Na-ri | 0–5 ret. |
| Win | 13–8 | Jun 2018 | ITF Daegu, Korea | 25,000 | Hard | Hsu Ching-wen | Shiho Akita Misaki Doi | 2–1 ret. |
| Win | 14–8 | Feb 2019 | Launceston International, Australia | 60,000 | Hard | Hsu Ching-wen | Alexandra Bozovic Isabelle Wallace | 6–2, 6–4 |
| Win | 15–8 | Mar 2019 | Kōfu International Open, Japan | 25,000 | Hard | Hsu Ching-wen | Emina Bektas Tara Moore | 6–1, 6–3 |
| Win | 16–8 | Mar 2019 | ITF Kōfu, Japan | 25,000 | Hard | Hsu Ching-wen | Xun Fangying You Xiaodi | 6–3, 6–4 |

## Wins over top 10 players

| # | Player | Rank | Event | Surface | Rd | Score |
| 2009 |||||||
| 1. | Dinara Safina | 1 | Pan Pacific Open | Hard | 2R | 7–6$^{(5)}$, 4–6, 7–5 |
| 2012 |||||||
| 2. | Marion Bartoli | 10 | Guangzhou Open | Hard | 1R | 4–3 ret. |
| 3. | Samantha Stosur | 5 | Japan Women's Open | Hard | SF | 6–4, 4–6, 7–6$^{(3)}$ |
| 2016 |||||||
| 4. | Roberta Vinci | 10 | Malaysian Open | Hard | 1R | 5–7, 6–2, 6–1 |