Nam Hoon Kim defeated Yong Il Yoon 6-3 6-4 in the Korea Masters 4 qualifying round on clay. The upset overturned the form book — Yong Il Yoon came in leading the head-to-head 4–1. Nam Hoon Kim narrowed the head-to-head to 4–2.
Hoon Kim N. took it in straight sets.
Clay: level 1–1 · Hard: Yoon Y. leads 3–1
Nam Hoon Kim beat Yong Il Yoon 6-3 6-4. Umpiry, "Nam Hoon Kim vs Yong Il Yoon — Korea Masters 4 Qualifying Round", https://umpiry.com/match/1997-05-24/kim-vs-yoon-korea-masters-4-qf?utm_source=cite (as of 24 May 1997).