Ryuso Tsujino defeated Yoshinobu Tanaka 6-4 7-6 in the Japan 1 Masters 4 round of 16 on hard. The result followed the form book — Ryuso Tsujino came in leading the head-to-head 2–0. Ryuso Tsujino extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-06-07 | Japan 1 Masters 3 | R16 | hard | Ryuso Tsujino | 7-6 6-3 |
| 1998-06-29 | Japan 1 Masters 1 | R32 | hard | Ryuso Tsujino | 6-3 7-6 |