Yi Chen defeated Czarina Mae Arevalo 5-7 6-4 6-4 in the Tarakan 10K semi-final on hard. The upset overturned the form book — Czarina Mae Arevalo came in leading the head-to-head 1–0, but Yi Chen had been the form player, winning 3 of their last 6 on hard. Yi Chen claimed a first win over Czarina Mae Arevalo in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-11-07 | Manila 1 10K | SF | hard | Czarina Mae Arevalo | 7-6(2) 7-5 |