Etsuko Kitazaki defeated Sakiko Shimizu 2-6 6-3 6-3 in the Saitama 10K round of 32 on hard. Etsuko Kitazaki extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-10-24 | Hamanako 25K | Q16 | carpet | Sakiko Shimizu | 7-5 7-5 |
| 2009-08-03 | Niigata 10K | R16 | carpet | Etsuko Kitazaki | 6-3 7-6(2) |