Noppawan Lertcheewakarn defeated Aiko Nakamura 6-2 6-2 in the Phuket 25K round of 16 on hard. The upset overturned the form book — Aiko Nakamura came in leading the head-to-head 2–0, but Noppawan Lertcheewakarn had been the form player, winning 4 of their last 6 on hard. Noppawan Lertcheewakarn claimed a first win over Aiko Nakamura in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-09-12 | Ningbo 100K | R16 | hard | Aiko Nakamura | 6-2 |
| 2007-02-05 | Pattaya | R32 | hard | Aiko Nakamura | 3-6 6-3 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.