Masato Hatanaka defeated Hiroyasu Sato 7-5 7-5 in the Japan F7 round of 16 on carpet. The result followed the form book — Masato Hatanaka came in leading the head-to-head 1–0. Masato Hatanaka extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-09-06 | Japan F7 | R32 | hard | Masato Hatanaka | 3-6 7-6(6) 7-6(4) |