Shuko Aoyama advanced when Wen Hsin Hsu retired 6-3 2-1 in the Kusatsu 25K qualifying round. Shuko Aoyama extended the head-to-head to 2–0.
Aoyama S. advanced when Hsu W. retired.
Shuko Aoyama beat Wen Hsin Hsu 6-3 2-1 after Wen Hsin Hsu retired. Umpiry, "Shuko Aoyama vs Wen Hsin Hsu — Kusatsu 25K Qualifying Round", https://umpiry.com/match/2010-05-24/aoyama-vs-hsu-kusatsu-25k-qf?utm_source=cite (as of 24 May 2010).