Rainer Gunther defeated Razvan Lupsescu 7-6 6-1 in the Yugoslavia F1 round of 16 on clay. The result followed the form book — Rainer Gunther came in leading the head-to-head 1–0. Rainer Gunther extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-05-18 | Yugoslavia F2 | R32 | clay | Rainer Gunther | 6-0 6-3 |