Yong Il Yoon defeated Sang Hoon Lee 6-1 4-6 6-4 in the Korea Masters 1 semi-final on clay. The result followed the form book — Yong Il Yoon came in leading the head-to-head 4–1. Yong Il Yoon extended the head-to-head to 5–1.
Yoon Y. came through in three sets.
Clay: Yoon Y. leads 4–0 · Hard: level 1–1
Yong Il Yoon beat Sang Hoon Lee 6-1 4-6 6-4. Umpiry, "Yong Il Yoon vs Sang Hoon Lee — Korea Masters 1 Semi-final", https://umpiry.com/match/1997-05-24/lee-vs-yoon-korea-masters-1-sf?utm_source=cite (as of 24 May 1997).