Ai Koga defeated Ting Fei Juan 6-2 6-2 in the Miyazaki 10K round of 32 on grass. The upset overturned the form book — Ting Fei Juan came in leading the head-to-head 2–0. Ai Koga claimed a first win over Ting Fei Juan in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-06-13 | Taipei 10K | R32 | hard | Ting Fei Juan | 6-2 6-3 |
| 2011-06-06 | Taipei 10K | R16 | hard | Ting Fei Juan | 6-2 6-4 |