Chiaki Okadaue defeated Yuka Mori 4-6 7-5 7-5 in the Tokyo 10K round of 32 on hard. The result followed the form book — Chiaki Okadaue came in leading the head-to-head 2–0. Chiaki Okadaue extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-04-29 | Gifu 50K | QF | hard | Chiaki Okadaue | 6-1 6-0 |
| 2013-03-25 | Nishi Tama 10K | R32 | hard | Chiaki Okadaue | 6-4 3-6 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.