Natsumi Hamamura defeated Nudnida Luangnam 7-5 7-5 in the Mumbai 1 10K round of 32 on hard. The upset overturned the form book — Nudnida Luangnam came in leading the head-to-head 1–0. Natsumi Hamamura claimed a first win over Nudnida Luangnam in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-07-19 | Nonthaburi 25K | R32 | hard | Nudnida Luangnam | 6-4 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.