Marko Tkalec defeated Tobias Koeck 6-3 6-4 in the Croatia F7 round of 16 on clay. The result followed the form book — Marko Tkalec came in leading the head-to-head 1–0. Marko Tkalec extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-11-03 | Czech Rep F5 | R32 | hard | Marko Tkalec | 6-3 6-2 |