Reiko Ino defeated Yu An Chen 6-3 6-1 in the Inchon 10K round of 32 on hard. The upset overturned the form book — Yu An Chen came in leading the head-to-head 1–0. Reiko Ino claimed a first win over Yu An Chen in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-09-06 | Ibaraki 2 10K | R16 | hard | Yu An Chen | 6-7 6-3 6-2 |