Wen Hsin Hsu defeated Hirono Watanabe 4-6 6-1 6-3 in the Noto 25K round of 16 on carpet. The result followed the form book — Wen Hsin Hsu came in leading the head-to-head 1–0. Wen Hsin Hsu extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-04-25 | Gifu 50K | R16 | hard | Wen Hsin Hsu | 6-2 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.