Junri Namigata defeated Aiko Nakamura 6-3 6-4 in the Fukuoka 50K round of 16 on grass. The upset overturned the form book — Aiko Nakamura came in leading the head-to-head 1–0. Junri Namigata claimed a first win over Aiko Nakamura in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-05-02 | Fukuoka 50K | R16 | grass | Aiko Nakamura | 6-4 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.