Yoshiko Sasano defeated Ka Po Tong 6-4 7-6 in the Ibaraki 4 10K round of 16 on hard. Yoshiko Sasano extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-03-29 | Inchon 10K | R16 | clay | Ka Po Tong | 7-6 2-6 6-3 |
| 1998-09-07 | Kugayama 4 10K | R32 | hard | Yoshiko Sasano | 6-2 6-4 |