Po Kuen Lam defeated Chattida Thimjapo 5-7 6-4 6-3 in the Manila 10K round of 32 on hard. The upset overturned the form book — Chattida Thimjapo came in leading the head-to-head 1–0, but Po Kuen Lam had been the form player, winning 4 of their last 6 on hard. Po Kuen Lam claimed a first win over Chattida Thimjapo in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-04-07 | Mumbai 2 10K | R32 | hard | Chattida Thimjapo | 6-2 6-4 |