Ha Jung-eun
Ha Jung-eun is a women's and mixed doubles badminton player from South Korea. Ha was competed at the 2006, 2010 Asian Games, 2008 and 2012 Summer Olympics. Together with the Korean national women's team, they won the Uber Cup in 2010. At the same year, she won the bronze medal at the World Championships in the mixed doubles event.
Career
Ha was competed at the 2004 World Junior Championships in Richmond, Canada, reached the semi finals round in the girs' singles and doubles event. At the 2004 and 2005 Asian Junior Championships, she achieved the best result by winning the 2005 mixed doubles title partnered with Lee Yong-dae. Ha junior was selected to join at the Korean national women's team, compete at the 2004 Uber Cup in Jakarta Indonesia. The team finished as the runner-up losing to China with the score 3–1.In 2010, Ha with her women's doubles partner, Lee Kyung-won, became the semi-finalists in Korea Open Super Series, and with Ko Sung-hyun in the mixed event, they only reached the quarter-finals. In All England, Ha and Ko suffered a first-round defeat to Zheng Bo and Ma Jin of China 17–21 and 12–21. Meanwhile, Ha and Lee, seeded seventh, vanquished Indonesia's Shendy Puspa Irawati and Nitya Krishinda Maheswari in straight sets, 21–18 and 21–18, before bowing out to Chinese third seeds, Cheng Shu and Zhao Yunlei in the semi-finals.
The next week's tournament in Switzerland brought unsatisfying result for Ha and Ko as they lost to the eventual finalists and their countrymen, Shin Baek-cheol and Yoo Hyun-young, in a tough three-setter, 21–19, 9–21, 19–21. However, in the women's event, Ha and Lee succeeded to their third semi-final of 2010, edging fourth-seeded Petya Nedeltcheva and Anastasia Russkikh out with a 21–17 and 21–11 win. Ha and Lee fought hard in the semi-final but finally lost 21–13, 19–21, and 20–22 to Miyuki Maeda and Satoko Suetsuna of Japan. Ha played for the Korean Uber Cup team on May 9–16. She and Lee Kyung-won defeated Yu Yang and Du Jing of China in the final 19–21, 21–14, and 21–19, giving the first Uber Cup for Korea.
In 2011, Ha paired up with Lee Yong-dae again and they won the U.S. Open Grand Prix Gold title in July. In the women's doubles event, she also won the Grand Prix Gold title in Swiss, U.S., and Chinese Taipei partnered with Kim Min-jung. She and Kim was qualified at the Superseries Finals, and finished in the second place after losing a match to Wang Xiaoli and Yu Yang.
At the 2012 Summer Olympics, Ha and her partner Kim Min-jung, along with Jung Kyung-eun and Kim Ha-na of South Korea, Wang Xiaoli and Yu Yang of China, and Meiliana Jauhari and Greysia Polii of Indonesia were disqualified from the competition for "not using one's best efforts to win a match" and "conducting oneself in a manner that is clearly abusive or detrimental to the sport" following matches the previous evening during which they were accused of trying to lose in order to manipulate the draw. Ha and her partner Kim Min-jung played against Indonesia's Meiliana Jauhari and Greysia Polii. It is suspected that the Koreans emulated China so to avoid playing against another Korean team in the semi-finals; the Korean head coach Sung Han-kook said "Because they don't want to play the semi-final against each other, so we did the same. We didn't want to play the South Korean team again". South Korea filed an appeal to the case, but it was rejected by the Badminton World Federation.
Achievements
BWF World Championships
Mixed doubles| Year | Venue | Partner | Opponent | Score | Result |
| 2010 | Stade Pierre de Coubertin, Paris, France |  Ko Sung-hyun |  Zheng Bo Ma Jin | 21–15, 11–21, 16–21 | Bronze |
World Cup
Women's doubles| Year | Venue | Partner | Opponent | Score | Result |
| 2005 | Olympic Park, Yiyang, China | Kim Min-jung | Wei Yili Zhang Yawen | 11–21, 13–21 | Bronze |
Asian Games
Women's doubles| Year | Venue | Partner | Opponent | Score | Result |
| 2010 | Tianhe Gymnasium, Guangzhou, China | Lee Kyung-won | Wang Xiaoli Yu Yang | 17–21, 14–21 | Bronze |
Asian Championships
Women's doubles| Year | Venue | Partner | Opponent | Score | Result |
| 2011 | Sichuan Gymnasium, Chengdu, China | Kim Min-jung | Tian Qing Zhao Yunlei | 15–21, 21–19, 17–21 | Bronze |
World Junior Championships
Girls' singles| Year | Venue | Opponent | Score | Result |
| 2004 | Minoru Arena, Richmond, Canada |  Cheng Shao-chieh | 4–11, 2–11 | Bronze |
Girls' doubles
| Year | Venue | Partner | Opponent | Score | Result |
| 2004 | Minoru Arena, Richmond, Canada | Oh Seul-ki | Feng Chen Pan Pan | 10–15, 9–15 | Bronze |
Asian Junior Championships
Girls' doubles| Year | Venue | Partner | Opponent | Score | Result |
| 2005 | Tennis Indoor Senayan, Jakarta, Indonesia | Hong Soo-jung | Cheng Shu Liao Jingmei | 15–11, 12–15, 5–15 | Silver |
| 2004 | Hwacheon Indoor Stadium, Hwacheon, South Korea | Oh Seul-ki | Ding Jiao Zhao Yunlei | 6–15, 12–15 | Bronze |
Mixed doubles
| Year | Venue | Partner | Opponent | Score | Result |
| 2005 | Tennis Indoor Senayan, Jakarta, Indonesia | Lee Yong-dae | Zhang Wei Liao Jingmei | 11–15, 15–8, 15–2 | Gold |
| 2004 | Hwacheon Indoor Stadium, Hwacheon, South Korea | Yoo Yeon-seong | Shen Ye Feng Chen | 11–15, 6–15 | Silver |
BWF Superseries
The BWF Superseries, launched on 14 December 2006 and implemented in 2007, is a series of elite badminton tournaments, sanctioned by Badminton World Federation. BWF Superseries has two level such as Superseries and Superseries Premier. A season of Superseries features twelve tournaments around the world, which introduced since 2011, with successful players invited to the Superseries Finals held at the year end.Women's doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 2012 | Malaysia Open | Kim Min-jung |  Christinna Pedersen Kamilla Rytter Juhl | 19–21, 18–21 | Runner-up |
| 2012 | Korea Open | Kim Min-jung | Tian Qing Zhao Yunlei | 18–21, 13–21 | Runner-up |
| 2011 | Superseries Finals | Kim Min-jung | Wang Xiaoli Yu Yang | 8–21, 12–21 | Runner-up |
| 2011 | Singapore Open | Kim Min-jung | Tian Qing Zhao Yunlei | 13–21, 16–21 | Runner-up |
Mixed doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 2012 | Korea Open | Lee Yong-dae | Xu Chen Ma Jin | 12–21, 21–19, 10–21 | Runner-up |
| 2009 | All England Open | Ko Sung-hyun | He Hanbin Yu Yang | 21–13, 15–21, 9–21 | Runner-up |
BWF Grand Prix
The BWF Grand Prix has two levels, the Grand Prix Gold and Grand Prix. It is a series of badminton tournaments, sanctioned by the Badminton World Federation since 2007. The World Badminton Grand Prix has been sanctioned by the International Badminton Federation since 1983.Women's doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 2011 | Chinese Taipei Open | Kim Min-jung |  Meiliana Jauhari Greysia Polii | 17–21, 21–18, 2–0 Retired | Winner |
| 2011 | U.S. Open | Kim Min-jung | Jung Kyung-eun Kim Ha-na | 14–21, 22–20, 21–18 | Winner |
| 2011 | Swiss Open | Kim Min-jung | Jung Kyung-eun Kim Ha-na | 21–12, 21–13 | Winner |
| 2011 | German Open | Kim Min-jung |  Mizuki Fujii Reika Kakiiwa | 6–21, 14–21 | Runner-up |
| 2003 | U.S. Open | Lee Eun-woo | Yoshiko Iwata Miyuki Tai | 5–15, 4–15 | Runner-up |
Mixed doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 2012 | German Open | Lee Yong-dae | Thomas Laybourn Kamilla Rytter Juhl | 9–21, 16–21 | Runner-up |
| 2011 | U.S. Open | Lee Yong-dae | Chen Hung-ling Cheng Wen-hsing | 21–19, 21–13 | Winner |
BWF International Challenge/Series/Satellite
Women's singles| Year | Tournament | Opponent | Score | Result |
| 2003 | Canadian International | Lee Eun-woo | 2–11, 11–7, 1–11 | Runner-up |
| 2003 | Hungarian International |  Susan Hughes | 4–11, 4–11 | Runner-up |
Women's doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 2009 | Korea International | Lee Kyung-won | Yoo Hyun-young Jung Kyung-eun | 19–21, 10–21 | Runner-up |
| 2008 | Korea International | Kim Min-jung | Jang Ye-na Kim Mi-young | 21–15, 21–14 | Winner |
| 2008 | Osaka International | Kim Min-jung | Kumiko Ogura Reiko Shiota | 22–20, 8–21, 13–21 | Runner-up |
| 2007 | Canadian International | Hwang Yu-mi | Joo Hyun-hee Oh Seul-ki | 21–16, 21–7 | Winner |
| 2007 | Cheers Asian Satellite | Kim Min-jung | Richi Puspita Dili Yulianti CJ | 21–18, 21–12 | Winner |
| 2007 | Vietnam International | Kim Min-jung | Richi Puspita Dili Yulianti CJ | 17–21, 21–9, 16–21 | Runner-up |
| 2005 | Cheers Asian Satellite | Kim Min-jung |  Jiang Yanmei Li Yujia | 3–15, 1–15 | Runner-up |
| 2005 | Surabaya Satellite | Kim Min-jung | Nitya Krishinda Maheswari Nadya Melati | 15–13, 15–0 | Winner |
| 2005 | Mongolian Satellite | Oh Seul-ki | Tao Xiaolan Wu Bei | Runner-up | |
| 2005 | Vietnam Satellite | Oh Seul-ki | Kang Hae-won Kim Min-jung | 15–6, 7–15, 15–5 | Runner-up |
| 2005 | Canadian International | Oh Seul-ki | Jun Woul-sik Ra Kyung-min | 5–15, 9–15 | Runner-up |
| 2003 | Canadian International | Lee Eun-woo | Jang Soo-young Kim Mi-young | 1–15, 17–16, 15–9 | Winner |
| 2003 | Norwegian International | Oh Seul-ki | Jang Soo-young Kim Mi-young | 15–6, 15–2 | Winner |
Mixed doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 2009 | Korea International | Ko Sung-hyun | Lee Yong-dae Lee Hyo-jung | 14–21, 21–15, 9–21 | Runner-up |
| 2008 | Osaka International | Kwon Yi-goo | Noriyasu Hirata Shizuka Matsuo | 24–22, 21–13 | Winner |
| 2007 | Cheers Asian Satellite | Yoo Yeon-seong | Cho Gun-woo Kim Min-jung | 19–21, 15–21 | Runner-up |
| 2005 | Cheers Asian Satellite | Lee Yong-dae | Hendri Kurniawan Saputra Li Yujia | 6–15, 8–15 | Runner-up |
| 2005 | Mongolian Satellite | Lee Yong-dae | Wang Wei Tao Xiaolan | 15–7, 15–11 | Winner |
| 2005 | Vietnam Satellite | Jeon Jun-bum | Hwang Ji-man Oh Seul-ki | 15–7, 6–15, 12–15 | Runner-up |
| 2005 | Canadian International | Kang Kyung-jin | Han Sung-wook Joo Hyun-hee | 15–12, 15–13 | Winner |