Keiko Ishida defeated Motoe Uchida 3-6 6-2 6-3 in the Ibaraki 10K round of 32 on hard. The upset overturned the form book — Motoe Uchida came in leading the head-to-head 1–0, but Keiko Ishida had been the form player, winning 3 of their last 5 on hard. Keiko Ishida claimed a first win over Motoe Uchida in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-11-15 | Haibara 10K | R32 | carpet | Motoe Uchida | 3-6 2-2 |