Nunzio Di Pietro defeated Blaz Trupej 7-6 7-5 in the Croatia F4 round of 32 on clay. The upset overturned the form book — Blaz Trupej came in leading the head-to-head 1–0. Nunzio Di Pietro claimed a first win over Blaz Trupej in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-08-18 | Croatia F5 | QF | clay | Blaz Trupej | 6-3 6-4 |