Yoo Yeon-seong
Yoo Yeon-seong is a South Korean professional badminton player.
He specializes in doubles events and was ranked as high as No. 2 worldwide with his former partner, Ko Sung-hyun. The two also competed at the 2012 Summer Olympics. For a long time he played mixed doubles with Kim Min-jung, but later switched partners to play with Jang Ye-na, starting in 2011. Starting in late 2013, his men's doubles partner was Lee Yong-dae. Together, they reached a world ranking of No.1 in August 2014.
Yoo was among 4 players reported to be retiring and hanging up his national team jersey after the Rio Olympics but during the Korea Open that September, it was revealed that he would be continuing to play on the national team after his partner Lee Yong Dae retired. Yoo said that he wants to spend more time with his family. After he and Lee won the Korea Open title, Yoo played an additional 9 international ranking events but his name was finally removed from the Korean national team list a few weeks after the 2017 Singapore Open.
Achievements
BWF World Championships
Men's doubles| Year | Venue | Partner | Opponent | Score | Result |
| 2015 | Istora Senayan, Jakarta, Indonesia |  Lee Yong-dae |  Mohammad Ahsan Hendra Setiawan | 17–21, 19–21 | Bronze |
| 2014 | Ballerup Super Arena, Copenhagen, Denmark | Lee Yong-dae | Ko Sung-hyun Shin Baek-cheol | 20–22, 23–21, 18–21 | Silver |
| 2011 | Wembley Arena, London, England | Ko Sung-hyun |  Cai Yun Fu Haifeng | 22–24, 16–21 | Silver |
Asian Games
Men's doubles| Year | Venue | Partner | Opponent | Score | Result |
| 2014 | Gyeyang Gymnasium, Incheon, South Korea | Lee Yong-dae | Mohammad Ahsan Hendra Setiawan | 16–21, 21–16, 17–21 | Silver |
Asia Championships
Men's doubles| Year | Venue | Partner | Opponent | Score | Result |
| 2016 | Wuhan Sports Center Gymnasium, Wuhan, China | Lee Yong-dae | Li Junhui Liu Yuchen | 21–14, 28–26 | Gold |
| 2015 | Wuhan Sports Center Gymnasium, Wuhan, China | Lee Yong-dae | Mohammad Ahsan Hendra Setiawan | 18–21, 24–22, 21–19 | Gold |
| 2014 | Gimcheon Indoor Stadium, Gimcheon, South Korea | Shin Baek-choel | Li Junhui Liu Yuchen | 22–20, 21–17 | Gold |
| 2010 | Siri Fort Indoor Stadium, New Delhi, India | Cho Gun-woo |  Chen Hung-ling Lin Yu-lang | 21–19, 12–21, 21–17 | Gold |
| 2009 | Suwon Indoor Stadium, Suwon, South Korea | Ko Sung-hyun | Markis Kido Hendra Setiawan | 18–21, 24–26 | Silver |
Mixed doubles
| Year | Venue | Partner | Opponent | Score | Result |
| 2010 | Siri Fort Indoor Stadium, New Delhi, India | Kim Min-jung |  Chan Peng Soon Goh Liu Ying | 17–21, 22–20, 19–21 | Silver |
| 2009 | Suwon Indoor Stadium, Suwon, South Korea | Kim Min-jung | Lee Yong-dae Lee Hyo-jung | 12–21, 15–21 | Silver |
Summer Universiade
Mixed doubles| Year | Venue | Partner | Opponent | Score | Result |
| 2007 | Thammasat University, Pathum Thani, Thailand | Kim Min-jung |  Fang Chieh-min Cheng Wen-hsing | 21–19, 13–21, 21–17 | Gold |
World Junior Championships
Boys' doubles| Year | Venue | Partner | Opponent | Score | Result |
| 2004 | Minoru Arena, Richmond, Canada | Jeon Jun-bum | Hoon Thien How Tan Boon Heong | 10–15, 14–17 | Bronze |
Asian Junior Championships
Boys' doubles| Year | Venue | Partner | Opponent | Score | Result |
| 2004 | Hwacheon Indoor Stadium, Hwacheon, South Korea | Jeon Jun-bum | Jung Jung-young Lee Yong-dae | 11–15, 3–15 | Silver |
Mixed doubles
| Year | Venue | Partner | Opponent | Score | Result |
| 2004 | Hwacheon Indoor Stadium, Hwacheon, South Korea | Ha Jung-eun | Shen Ye Feng Chen | 11–15, 6–15 | Silver |
BWF Superseries (19 titles, 10 runners-up)
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.Men's doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 2016 | Korea Open | Lee Yong-dae | Li Junhui Liu Yuchen | 15–21, 22–20, 21–18 | Winner |
| 2016 | Indonesia Open | Lee Yong-dae | Chai Biao Hong Wei | 13–21, 21–13, 21–16 | Winner |
| 2015 | Hong Kong Open | Lee Yong-dae |  Mathias Boe Carsten Mogensen | 21–7, 18–21, 21–18 | Winner |
| 2015 | French Open | Lee Yong-dae | Mads Conrad-Petersen Mads Pieler Kolding | 21–14, 21–19 | Winner |
| 2015 | Denmark Open | Lee Yong-dae | Liu Cheng Lu Kai | 21–8, 21–14 | Winner |
| 2015 | Korea Open | Lee Yong-dae | Kim Gi-jung Kim Sa-rang | 21–16, 21–12 | Winner |
| 2015 | Japan Open | Lee Yong-dae | Fu Haifeng Zhang Nan | 21–19, 29–27 | Winner |
| 2015 | Australian Open | Lee Yong-dae | Liu Cheng Lu Kai | 21–16, 21–17 | Winner |
| 2015 | Malaysia Open | Lee Yong-dae | Mohammad Ahsan Hendra Setiawan | 21–14, 15–21, 21–23 | Runner-up |
| 2014 | Dubai World Superseries Finals | Lee Yong-dae | Chai Biao Hong Wei | 19–21, 21–19, 21–16 | Winner |
| 2014 | China Open | Lee Yong-dae | Chai Biao Hong Wei | 21–14, 21–15 | Winner |
| 2014 | Denmark Open | Lee Yong-dae | Fu Haifeng Zhang Nan | 13–21, 23–25 | Runner-up |
| 2014 | Australian Open | Lee Yong-dae | Lee Sheng-mu Tsai Chia-hsin | 21–14, 21–18 | Winner |
| 2014 | Indonesia Open | Lee Yong-dae | Mohammad Ahsan Hendra Setiawan | 21–15, 21–17 | Winner |
| 2014 | Japan Open | Lee Yong-dae | Mohammad Ahsan Hendra Setiawan | 21–12, 26–24 | Winner |
| 2013 | Hong Kong Open | Lee Yong-dae | Kim Gi-jung Kim Sa-rang | 12–21, 21–15, 21–18 | Winner |
| 2013 | China Open | Lee Yong-dae | Hoon Thien How Tan Wee Kiong | 21–13, 21–12 | Winner |
| 2013 | Denmark Open | Lee Yong-dae | Mohammad Ahsan Hendra Setiawan | 21–19, 21–16 | Winner |
| 2012 | Denmark Open | Shin Baek-choel | Koo Kien Keat Tan Boon Heong | 19–21, 21–11, 21–19 | Winner |
| 2012 | Singapore Open | Ko Sung-hyun | Markis Kido Hendra Setiawan | 20–22, 21–11, 6–21 | Runner-up |
| 2012 | India Open | Ko Sung-hyun |  Bodin Issara Maneepong Jongjit | 17–21, 21–14, 14–21 | Runner-up |
| 2011 | China Open | Ko Sung-hyun | Mathias Boe Carsten Mogensen | 17–21, 13–21 | Runner-up |
| 2010 | Hong Kong Open | Ko Sung-hyun | Markis Kido Hendra Setiawan | 21–19, 14–21, 23–21 | Winner |
| 2010 | China Masters | Ko Sung-hyun | Cai Yun Fu Haifeng | 14–21, 19–21 | Runner-up |
| 2010 | Swiss Open | Ko Sung-hyun | Koo Kean Keat Tan Boon Heong | 21–18, 21–16 | Winner |
Mixed doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 2014 | China Open | Eom Hye-won | Zhang Nan Zhao Yunlei | 25–23, 14–21, 18–21 | Runner-up |
| 2013 | China Masters | Eom Hye-won | Zhang Nan Zhao Yunlei | 18–21, 12–21 | Runner-up |
| 2013 | Singapore Open | Eom Hye-won | Tontowi Ahmad Liliyana Natsir | 12–21, 12–21 | Runner-up |
| 2011 | China Masters | Jang Ye-na | Xu Chen Ma Jin | 13–21, 16–21 | Runner-up |
BWF Grand Prix (12 titles, 5 runners-up)
The BWF Grand Prix has two levels, the BWF Grand Prix and Grand Prix Gold. It is a series of badminton tournaments sanctioned by the Badminton World Federation since 2007. The World Badminton Grand Prix sanctioned by International Badminton Federation since 1983.Men's doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 2016 | China Masters | Lee Yong-dae | Kim Gi-jung Kim Sa-rang | 21–17, 21–14 | Winner |
| 2016 | German Open | Lee Yong-dae | Ko Sung-hyun Shin Baek-cheol | 22–20, 18–21, 17–21 | Runner-up |
| 2014 | Korea Masters | Lee Yong-dae | Ko Sung-hyun Shin Baek-cheol | 21–18, 21–19 | Winner |
| 2013 | Thailand Open | Shin Baek-cheol |  Vladimir Ivanov Ivan Sozonov | 18–21, 21–15, 21–14 | Winner |
| 2011 | Korea Masters | Ko Sung-hyun | Jung Jae-sung Lee Yong-dae | 21–15, 24–22 | Winner |
| 2011 | Macau Open | Ko Sung-hyun | Chai Biao Guo Zhendong | 19–21, 19–21 | Runner-up |
| 2011 | Chinese Taipei Open | Ko Sung-hyun | Jung Jae-sung Lee Yong-dae | 23–21, 21–17 | Winner |
| 2011 | Swiss Open | Ko Sung-hyun | Jung Jae-sung Lee Yong-dae | 21–17, 21–16 | Winner |
| 2010 | Korea Masters | Ko Sung-hyun | Jung Jae-sung Lee Yong-dae | 21–18, 18–21, 25–27 | Runner-up |
| 2010 | Macau Open | Ko Sung-hyun | Alvent Yulianto Hendra Aprida Gunawan | 21–17, 21–15 | Winner |
| 2006 | Vietnam Open | Jeon Jun-bum | Chew Choon Eng Hong Chieng Hun | 21–19, 21–19 | Winner |
Mixed doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 2013 | Korea Masters | Jang Ye-na | Kang Ji-wook Choi Hye-in | 21–13, 21–11 | Winner |
| 2013 | Chinese Taipei Open | Eom Hye-won | Shin Baek-cheol Jang Ye-na | 20–22, 21–12, 16–21 | Runner-up |
| 2012 | Korea Masters | Jang Ye-na | Shin Baek-cheol Eom Hye-won | 21–11, 18–21, 23–25 | Runner-up |
| 2011 | Korea Masters | Jang Ye-na | Kim Ki-jung Jung Kyung-eun | 21–17, 21–19 | Winner |
| 2010 | Korea Masters | Kim Min-jung | Choi Young-woo Eom Hye-won | 21–15, 21–13 | Winner |
| 2006 | Vietnam Open | Lee Jung-mi | Kang Myeong-won Kang Joo-young | 21–17, 17–21, 21–18 | Winner |
BWF International Challenge/Series (4 titles, 6 runners-up)
Men's doubles| Year | Tournament | Partner | Opponent | Score | Result |
| 2018 | Dubai International | Kim Sang-soo |  Tarun Kona Lim Khim Wah | 21–16, 21–9 | Winner |
| 2009 | Korea International | Ko Sung-hyun | Jung Jae-sung Lee Yong-dae | 19–21, 21–15, 15–21 | Runner-up |
| 2008 | Korea International | Cho Gun-woo | Jung Jae-sung Lee Yong-dae | 16–21, 24–26 | Runner-up |
| 2007 | Vietnam International | Cho Gun-woo | Mohammad Ahsan Bona Septano | 15–21, 19–21 | Runner-up |
| 2006 | Mongolian Satellite | Jeon Jun-bum | Kim Ki-jung Lee Jung-hwan | 21–14, 21–14 | Winner |
| 2003 | Hungarian International | Jeon Jun-bum | Lee Jae-jin Hwang Ji-man | 12–15, 12–15 | Runner-up |
Mixed doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 2018 | Dubai International | Park So-young | Denis Grachev Ekaterina Bolotova | 21–14, 17–21, 21–14 | Winner |
| 2007 | Indonesia International | Kim Min-jung | Tontowi Ahmad Yulianti CJ | 16–21, 21–15, 9–21 | Runner-up |
| 2007 | Cheers Asian Satellite | Ha Jung-eun | Cho Gun-woo Kim Min-jung | 19–21, 15–21 | Runner-up |
| 2006 | Mongolian Satellite | Kim Min-jung | Lee Jung-hwan Yoo Hyun-young | 21–13, 21–15 | Winner |
Record Against Selected Opponents
Men's doubles results with Ko Sung-hyun against Super Series finalists, World Championships semifinalists, and Olympic quarterfinalists.- Cai Yun & Fu Haifeng 1–7
- Chai Biao & Guo Zhendong 1-2
- Guo Zhendong & Xu Chen 2–0
- Fang Chieh-min & Lee Sheng-mu 3–1
- Mathias Boe & Carsten Mogensen 0–6
- Lars Påske & Jonas Rasmussen 1–1
- Jonas Rasmussen & Mads Conrad-Petersen 1–0
- Mohammad Ahsan & Bona Septano 5–1
- Alvent Yulianto Chandra & Hendra Aprida Gunawan 4–1
- Markis Kido & Hendra Setiawan 2–3
- Hirokatsu Hashimoto & Noriyasu Hirata 4–2
- Jung Jae-sung & Lee Yong-dae 4–4
- Cho Gun-woo & Shin Baek-cheol 1–0
- Choong Tan Fook & Lee Wan Wah 1–0
- Koo Kien Keat & Tan Boon Heong 6–1
- Adam Cwalina & Michał Łogosz 1–0
- Bodin Issara & Maneepong Jongjit 0–3
- Howard Bach & Tony Gunawan 3–1