Yong Il Yoon defeated Sang Hoon Lee 6-2 6-1 in the Korea F1 round of 16 on clay. The result followed the form book — Yong Il Yoon came in leading the head-to-head 6–1. Yong Il Yoon extended the head-to-head to 7–1.
Yoon Y. took it in straight sets.
Clay: Yoon Y. leads 5–0 · Hard: Yoon Y. leads 2–1
Yong Il Yoon beat Sang Hoon Lee 6-2 6-1. Umpiry, "Yong Il Yoon vs Sang Hoon Lee — Korea F1 Round of 16", https://umpiry.com/match/2000-05-22/lee-vs-yoon-korea-f1-r16?utm_source=cite (as of 22 May 2000).