SeongHyun Yoon, Born the 30th of June 1975 in SokCho,
Kangwon Province (east coast) in Korea.
He has never captured any cups yet but he was one of
the finalist for PaeWang Cup in 93. He qualified for
the Top position match and MyungIn match in 93, 95. He
also qualified for Korea mobile telecom Cup , Jaewang,
Wangwi, Baccus Cup in 94, MyungIn in 96.