Napaporn Tongsalee defeated Da Jung Hong 7-6 7-5 in the Nonthaburi 25K round of 16 on hard. The result followed the form book — Napaporn Tongsalee came in leading the head-to-head 1–0. Napaporn Tongsalee extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-07-21 | Changwon 25K | QF | hard | Napaporn Tongsalee | 6-3 6-4 |