Yong Il Yoon defeated Kentaro Masuda 6-4 7-5 in the Chinese Taipei Masters 4 qualifying round on hard.
Yoon Y. took it in straight sets.
Yong Il Yoon beat Kentaro Masuda 6-4 7-5. Umpiry, "Yong Il Yoon vs Kentaro Masuda — Chinese Taipei Masters 4 Qualifying Round", https://umpiry.com/match/1992-08-10/masuda-vs-yoon-chinese-taipei-masters-4-qf?utm_source=cite (as of 10 August 1992).