Kumiko Iijima defeated Chia Jung Chuang 6-3 6-4 in the Taipei 100K round of 16 on carpet. The upset overturned the form book — Chia Jung Chuang came in leading the head-to-head 2–0. Kumiko Iijima claimed a first win over Chia Jung Chuang in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-03-29 | Mumbai 10K | R16 | hard | Chia Jung Chuang | 4-6 6-2 6-2 |
| 2003-08-04 | Nonthaburi 10K | R32 | hard | Chia Jung Chuang | 6-0 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.