Ai Yamamoto defeated Katherine Westbury 1-6 6-4 7-5 in the Bangkok 10K semi-final on hard. The result followed the form book — Ai Yamamoto came in leading the head-to-head 1–0. Ai Yamamoto extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-06-28 | Nonthaburi 10K | R32 | hard | Ai Yamamoto | 4-6 7-5 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.