Chiaki Okadaue defeated Tomoyo Takagishi 1-6 6-2 6-2 in the Makinohara 25K round of 16 on carpet. Chiaki Okadaue extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-05-29 | Gunma 25K | R32 | carpet | Chiaki Okadaue | 6-2 4-6 6-3 |
| 2005-09-12 | Hiroshima 10K | SF | carpet | Tomoyo Takagishi | 2-6 6-4 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.