Ai Yamamoto defeated Chun Yan He 7-5 6-1 in the Balikpapan 25K round of 32 on hard. The result followed the form book — Ai Yamamoto came in leading the head-to-head 1–0. Ai Yamamoto extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-06-15 | Pattaya 10K | R16 | hard | Ai Yamamoto | 6-3 7-5 |