Tetsuya Chaen advanced when Toshiharu Kato retired 6-2 3-1 in the Japan F7 qualifying round. Tetsuya Chaen extended the head-to-head to 3–0.
Chaen T. advanced when Kato T. retired.
Tetsuya Chaen beat Toshiharu Kato 6-2 3-1 after Toshiharu Kato retired. Umpiry, "Tetsuya Chaen vs Toshiharu Kato — Japan F7 Qualifying Round", https://umpiry.com/match/2000-09-18/chaen-vs-kato-japan-f7-qf?utm_source=cite (as of 18 September 2000).