Blaz Trupej defeated Marko Tkalec 6-4 6-4 in the Croatia F6 qualifying round on clay. The upset overturned the form book — Marko Tkalec came in leading the head-to-head 1–0. Blaz Trupej claimed a first win over Marko Tkalec in two meetings, levelling the head-to-head at 1–1.
Trupej B. took it in straight sets.
Blaz Trupej beat Marko Tkalec 6-4 6-4. Umpiry, "Blaz Trupej vs Marko Tkalec — Croatia F6 Qualifying Round", https://umpiry.com/match/1998-08-25/tkalec-vs-trupej-croatia-f6-qf?utm_source=cite (as of 25 August 1998).