Yong Il Yoon advanced when Brian Macphie retired 3-4 in the Tokyo qualifying round of 32.
Yoon Y. advanced when Macphie B. retired.
Yong Il Yoon beat Brian Macphie 3-4 after Brian Macphie retired. Umpiry, "Yong Il Yoon vs Brian Macphie — Tokyo Qualifying Round of 32", https://umpiry.com/match/2000-10-09/macphie-vs-yoon-tokyo-q32?utm_source=cite (as of 9 October 2000).