Keiko Ishida defeated Yoshiko Sasano 5-7 6-2 6-4 in the Haibara 10K qualifying round on carpet. The upset overturned the form book — Yoshiko Sasano came in leading the head-to-head 1–0. Keiko Ishida claimed a first win over Yoshiko Sasano in two meetings, levelling the head-to-head at 1–1.
Ishida K. came through in three sets.
Carpet: Ishida K. leads 1–0 · Hard: Sasano Y. leads 1–0
Keiko Ishida beat Yoshiko Sasano 5-7 6-2 6-4. Umpiry, "Keiko Ishida vs Yoshiko Sasano — Haibara 10K Qualifying Round", https://umpiry.com/match/1998-11-16/ishida-vs-sasano-haibara-10k-qf?utm_source=cite (as of 16 November 1998).