Natsumi Hamamura defeated Jing Ren 6-3 7-5 in the Chengdu 25K round of 32 on hard. The upset overturned the form book — Jing Ren came in leading the head-to-head 1–0. Natsumi Hamamura claimed a first win over Jing Ren in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-04-30 | Chengdu 25K | R16 | hard | Jing Ren | 7-6(8) 6-1 |