Kumiko Iijima defeated Maika Ozaki 6-1 6-2 in the Sutama 25K round of 16 on clay. The upset overturned the form book — Maika Ozaki came in leading the head-to-head 1–0. Kumiko Iijima claimed a first win over Maika Ozaki in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-10-23 | Hamanako 25K | R16 | carpet | Maika Ozaki | 6-4 6-4 |