Chiaki Okadaue defeated Ayaka Maekawa 6-4 7-5 in the Gunma 25K round of 32 on carpet. The result followed the form book — Chiaki Okadaue came in leading the head-to-head 1–0. Chiaki Okadaue extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-07-19 | Nonthaburi 25K | R32 | hard | Chiaki Okadaue | 3-6 7-6(6) 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.