Nudnida Luangnam defeated Natsumi Hamamura 6-4 6-4 in the Nonthaburi 25K round of 32 on hard. The upset overturned the form book — Natsumi Hamamura came in leading the head-to-head 1–0, but Nudnida Luangnam had been the form player, winning 3 of their last 4 on hard. Nudnida Luangnam claimed a first win over Natsumi Hamamura in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-04-04 | Mumbai 1 10K | R32 | hard | Natsumi Hamamura | 7-5 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.