Marko Neunteibl defeated Ronald Dueller 6-2 6-4 in the Slovak Rep F6 round of 32 on clay. The result followed the form book — Marko Neunteibl came in leading the head-to-head 1–0. Marko Neunteibl extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-07-19 | Austria F3 | R32 | clay | Marko Neunteibl | 6-2 6-3 |