Wen Hsin Hsu defeated Natsumi Hamamura 6-7 6-1 6-1 in the Kofu 50K round of 32 on hard. The result followed the form book — Wen Hsin Hsu came in leading the head-to-head 2–0. Wen Hsin Hsu extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-04-04 | Bundaberg 25K | R16 | clay | Wen Hsin Hsu | 6-1 7-6(2) |
| 2009-05-25 | Gunma 25K | R16 | carpet | Wen Hsin Hsu | 6-4 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.