Misaki Doi defeated Seiko Okamoto 6-4 0-6 6-2 in the Gunma 25K round of 32 on carpet. The result followed the form book — Misaki Doi came in leading the head-to-head 1–0. Misaki Doi extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-07-27 | Obihiro-Tokachi 25K | R32 | carpet | Misaki Doi | 6-2 2-6 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.