Hsin Han Lee defeated Yaoki Ishii 6-2 6-4 in the China F4 round of 16 on hard. The upset overturned the form book — Yaoki Ishii came in leading the head-to-head 1–0. Hsin Han Lee claimed a first win over Yaoki Ishii in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-05-30 | Indonesia F2 | R32 | hard | Yaoki Ishii | 3-6 7-6(6) 6-2 |