Relja Fiser Dulic defeated Gergely Kisgyorgy 6-3 6-3 in the Slovenia F2 round of 32 on clay. The upset overturned the form book — Gergely Kisgyorgy came in leading the head-to-head 3–0. Relja Fiser Dulic claimed a first win over Gergely Kisgyorgy in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-07-19 | Hungary Masters 2 | F | clay | Gergely Kisgyorgy | 6-4 6-0 |
| 1998-05-25 | Yugoslavia F3 | R16 | clay | Gergely Kisgyorgy | 6-1 6-0 |
| 1996-07-14 | Hungary Masters 4 | R32 | clay | Gergely Kisgyorgy | 6-3 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.