Kana Watanabe defeated Sakiko Shimizu 6-4 6-4 in the Miyazaki 10K round of 16 on carpet. The upset overturned the form book — Sakiko Shimizu came in leading the head-to-head 1–0. Kana Watanabe claimed a first win over Sakiko Shimizu in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-09-24 | Hiroshima 10K | R32 | carpet | Sakiko Shimizu | 6-1 6-2 |