Remi Tezuka defeated Natsumi Hamamura 7-5 6-3 in the Sutama 25K round of 32 on clay. The upset overturned the form book — Natsumi Hamamura came in leading the head-to-head 2–0. Remi Tezuka claimed a first win over Natsumi Hamamura in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-03-19 | Mumbai 25K | QF | hard | Natsumi Hamamura | 6-2 2-6 7-6(5) |
| 2006-07-17 | Kurume 25K | R32 | carpet | Natsumi Hamamura | 6-7(3) 6-1 6-3 |