Duan Yingying

2012

Starting the year ranked No. 378 in the world, Duan's ranking would improve significantly to No. 128 by the year's end. Some of the highlights of her 2012 season included winning four ITF titles at the 25k level in Wellington, Changwon, Gimcheon and Goyang. Playing qualifying at the US Open, Duan had her first experience in a Grand Slam tournament. She would win her first qualifying round defeating Réka-Luca Jani, but would fall in the next round to Kirsten Flipkens. She received a wildcard to the Guangzhou International and won her first WTA main draw match defeating Luksika Khumkum in the first round. Duan also achieved her best results in ITF challengers near the end of 2012, reaching the semifinals of 100K+H Ningbo and the finals of 100K Suzhou, losing both matches to top-100 veteran Hsieh Su-wei.

2013

Duan was due to make her main draw Grand Slam singles debut at Wimbledon, but withdrew to compete in the National Games of China. She made her Grand Slam singles debut in the main draw of the US Open after winning three qualifying matches. She lost to sixth seed Caroline Wozniacki in the opening round. During the televised commentary of her match against Caroline Wozniacki, the commentators compared Duan's game to that of former world No. 1, Lindsay Davenport. They also began referring to her by the nickname of Duan-venport (段文波特) on the Chinese internet.^[2][3][4]

2015

As a qualifier, Duan beat 2014 finalist Eugenie Bouchard 7–6^(7–3), 6–4 in the first round of Wimbledon. This match was considered as one of the biggest upset of the tournament. In the second round, Duan lost to Tatjana Maria from Germany in a long three-set match by 6–1, 2–6, 8–10.

2016

In July, Duan won her first WTA tour title at the Jiangxi International Women's Tennis Open, defeating Vania King in the final by 1–6, 6–4, 6–2.

2017

Duan had three match points against Agnieszka Radwanska at the Shenzhen Open, eventually losing the match. She had her best Grand Slam showing to date at the Australian Open. She defeated Rebecca Sramkova and Varvara Lepchenko to reach the third round, where she lost to former world No. 1 and eventual finalist Venus Williams by a scoreline of 1-6, 0-6.

Singles: 1 (1 title)

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Win	1–0	Aug 2016	Jiangxi Open, China	International	Hard	Vania King	1–6, 6–4, 6–2

Doubles: 2 (2 titles)

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Win	1–0	Nov 2017	WTA Elite Trophy, China	Elite	Hard (i)	Han Xinyun	Lu Jingjing Zhang Shuai	6–2, 6–1
Win	2–0	Feb 2018	Taiwan Open, Taiwan	International	Hard (i)	Wang Yafan	Nao Hibino Oksana Kalashnikova	7–6(7–4), 7–6(7–5)

Singles: 1 (1 runner-up)

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Loss	0–1	Sep 2014	Suzhou Open, China	125K	Hard	Anna-Lena Friedsam	1–6, 3–6

Doubles: 2 (2 titles)

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponent	Score
Win	1–0	Nov 2017	Hua Hin Championships, Thailand	125K	Hard	Wang Yafan	Dalila Jakupovic Irina Khromacheva	6–3, 6–3
Win	2–0	Apr 2018	Zhengzhou Open, China	125K	Hard	Wang Yafan	Naomi Broady Yanina Wickmayer	7–6 (7–5) , 6–3

Singles: 16 (10 titles, 6 runner-ups)

Outcome	No.	Date	Tournament	Surface	Opponent	Score
Winner	1.	9 February 2009	Jiangmen, China	Hard	Xie Yanze	6–2, 6–4
Winner	2.	25 May 2009	New Delhi, India	Hard	Keren Shlomo	6–3, 6–4
Runner-up	3.	29 June 2009	Xiamen, China	Hard	Zhang Shuai	2–6, 1–6
Winner	4.	29 March 2010	Nanjing, China	Hard	Liu Wanting	6–4, 7–6(8–6)
Winner	5.	28 June 2010	Hefei, China	Hard	Zheng Saisai	6–3, 6–4
Runner-up	6.	23 August 2010	Saitama, Japan	Hard	Hsu Wen-hsin	1–6, 6–1, 3–6
Runner-up	7.	22 August 2011	Saitama, Japan (2)	Hard	Ayumi Oka	3–6, 4–6
Winner	8.	27 February 2012	Wellington, New Zealand	Hard	Sandra Zaniewska	6–1, 6–4
Winner	9.	21 May 2012	Changwon, Korea	Hard	Zhang Ling	6–4, 6–3
Winner	10.	28 May 2012	Gimcheon, Korea	Hard	Chanel Simmonds	6–2, 6–1
Winner	11.	18 June 2012	Goyang, Korea	Hard	Zhang Ling	6–3, 6–3
Runner-up	12.	16 July 2012	Evansville, United States	Hard	Mallory Burdette	1–6, 2–6
Runner-up	13.	8 October 2012	Suzhou, China	Hard	Hsieh Su-wei	2–6, 2–6
Winner	14.	26 May 2013	Goyang, Korea (2)	Hard	Liu Fangzhou	6–3, 6–4
Winner	15.	23 June 2014	Xi'an, China	Hard	Zhu Lin	4–6, 7–6(11–9), 6–4
Runner-up	16.	25 October 2015	Suzhou, China	Hard	Zhang Kailin	6–1, 3–6, 4–6

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

Outcome	No.	Date	Tournament	Surface	Partner	Opponents	Score
Runner–up	1.	19 May 2008	Khon Kaen, Thailand	Hard	Chen Hui	Kim Sun-jung Lee Cho-won	4–6, 6–4, [4–10]
Runner–up	2.	13 February 2012	Sydney, Australia	Hard	Han Xinyun	Arina Rodionova Melanie South	6–3, 3–6, [8–10]
Winner	3.	16 July 2012	Evansville, United States	Hard	Xu Yifan	Mallory Burdette Natalie Pluskota	6–2, 6–3
Runner-up	4.	30 July 2016	Wuhan, China	Hard	Chang Kai-chen	Shuko Aoyama Makoto Ninomiya	4–6, 4–6

Singles

Doubles