Orawan Wongkamalasai defeated Wilawan Choptang 5-7 6-3 6-1 in the Nonthabuiri 10K round of 16 on hard. The upset overturned the form book — Wilawan Choptang came in leading the head-to-head 1–0. Orawan Wongkamalasai claimed a first win over Wilawan Choptang in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-11-20 | Manila 10K | R16 | hard | Wilawan Choptang | 1-4 2-4 4-0 2-0 |