You Seung-hun explained

You Seung-hun
Fullname:	You Seung-hun
Strokes:	Breaststroke
Birth Date:	28 June 1983
Height:	1.790NaN0
Weight:	790NaN0
Show-Medals:	yes

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 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]}

Notes and References

1. You Seung-Hun. https://web.archive.org/web/20200417234613/https://www.sports-reference.com/olympics/athletes/yu/yu-seung-hyeon-1.html. dead. 17 April 2020. 24 April 2013.
2. News: Marsteller . Jason . Park Snares Second Asian Record, Japan Wins Medal Count as Asian Games Come to a Close . . 7 December 2006 . 24 April 2013 . dead . https://web.archive.org/web/20130609113812/http://www.swimmingworldmagazine.com/lane9/news/12950.asp . 9 June 2013 .
3. Web site: Swimming – Men's 100m Breaststroke Startlist (Heat 3). PDF. Athens 2004. Omega Timing. 24 April 2013.
4. Web site: Men's 100m Breaststroke Heat 2. Athens 2004. BBC Sport. 14 August 2004. 31 January 2013.
5. News: Whitten . Phillip . Prelims, Men's 100 Breaststroke: Kitajima, Hansen Qualify One-Two; Japanese Sets Olympic Record . . 14 August 2004 . 24 April 2013 . dead . https://web.archive.org/web/20131203065847/http://www.swimmingworldmagazine.com/lane9/news/7788.asp . 3 December 2013 .