Chiaki Okadaue defeated Rachael Tredoux 6-4 6-1 in the Sydney 10K round of 32 on hard. 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 |
|---|---|---|---|---|---|
| 2011-11-21 | Bendigo 25K | R16 | hard | Chiaki Okadaue | 6-4 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.