Seiko Okamoto defeated Chia Jung Chuang 5-7 6-4 6-3 in the Taipei 25K semi-final on hard. The upset overturned the form book — Chia Jung Chuang came in leading the head-to-head 2–0. Seiko Okamoto 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 |
|---|---|---|---|---|---|
| 2006-10-30 | Sutama 25K | SF | clay | Chia Jung Chuang | 6-2 7-5 |
| 2006-10-16 | Makinohara 25K | SF | carpet | Chia Jung Chuang | 6-4 4-6 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.