Toshiharu Kato defeated Yasuo Miyazaki 6-4 6-4 in the Japan F7 round of 32 on hard. The upset overturned the form book — Yasuo Miyazaki came in leading the head-to-head 2–0. Toshiharu Kato claimed a first win over Yasuo Miyazaki in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-06-27 | Japan F8 | R32 | hard | Yasuo Miyazaki | 6-4 6-2 |
| 2002-05-20 | Japan F4 | R32 | hard | Yasuo Miyazaki | 6-2 4-6 7-6(4) |