You Seung-hun

In this Korean name, the family name is Yoo.

You Seung-hun (also Yu Seong-hyeon, Korean: 유 승현; born June 28, 1983) is a South Korean former swimmer, who specialized in breaststroke events.^[1] He shared bronze medals with Sung Min, Jeong Doo-Hee, and Park Tae-Hwan in the 4 × 100 m medley relay (3:41.33) at the 2006 Asian Games in Doha, Qatar.^[2]

You Seung-hun

Personal information
Full name	You Seung-hun
National team	South Korea
Born	(1983-06-28) 28 June 1983 (age 42)
Height	1.79 m (5 ft 10 in)
Weight	79 kg (174 lb)
Sport
Sport	Swimming
Strokes	Breaststroke
Medal record Men's swimming Representing South Korea Asian Games 2006 Doha 4×100 m medley

You qualified for the men's 100 m breaststroke at the 2004 Summer Olympics in Athens, by clearing a FINA B-standard entry time of 1:04.28 from the Dong-A Swimming Tournament in Seoul.^[3] He set a South Korean record and a personal best of 1:03.56 to lead the third heat by 0.28 of a second ahead of Chinese Taipei's Chen Cho-Yi. You failed to advance into the semifinals, as he placed thirty-first overall on the first day of preliminaries.^[4][5]