鄭在成
Shin started to play badminton at the age of 8 in Wallgot Elementary School. He later belonged to the badminton team of the Korea National Sport University before moving to Gimcheon City Hall in 2012. In February 2009, Shin replaced Jung Jae-sung as Lee Yong-dae's partner. They won German Open after beating Japan's Kenichi Hayakawa and Kenta Kazuno. Shin and his mixed doubles partner, Yoo Hyun-young, reached the final of 2010 Swiss Open Super Series in March. They lost to second-seeded Lee Yong-dae and Lee Hyo-jung 14-21 and 18–21. He also won the gold medal at the 2010 Guangzhou Asian Games in the mixed doubles event partnered with Lee Hyo-jung.