Seiko Okamoto advanced when Nadia Johnston retired 6-1 in the CD Juarez 10K round of 32.
Okamoto S. advanced when Johnston N. retired.
Seiko Okamoto beat Nadia Johnston 6-1 after Nadia Johnston retired. Umpiry, "Seiko Okamoto vs Nadia Johnston — CD Juarez 10K Round of 32", https://umpiry.com/match/1999-05-17/johnston-vs-okamoto-cd-juarez-10k-r32?utm_source=cite (as of 17 May 1999).