Toshitsugu Mori defeated Tetsuya Sato 6-3 6-4 in the Japan Masters 3 round of 32 on hard. The upset overturned the form book — Tetsuya Sato came in leading the head-to-head 1–0. Toshitsugu Mori claimed a first win over Tetsuya Sato in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1994-11-07 | Japan Masters 1 | R16 | hard | Tetsuya Sato | 6-2 6-2 |