Yong Il Yoon defeated Seong Yoon Chung 6-7 6-2 6-3 in the Korea Masters 1 round of 32 on clay.
Yoon Y. came through in three sets.
Yong Il Yoon beat Seong Yoon Chung 6-7 6-2 6-3. Umpiry, "Yong Il Yoon vs Seong Yoon Chung — Korea Masters 1 Round of 32", https://umpiry.com/match/1997-05-24/chung-vs-yoon-korea-masters-1-r32?utm_source=cite (as of 24 May 1997).