Michal Mertinak defeated Zoltan Nagy 7-5 6-2 in the Slovak Rep F2 qualifying round on clay. The upset overturned the form book — Zoltan Nagy came in leading the head-to-head 1–0. Michal Mertinak claimed a first win over Zoltan Nagy in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-08-16 | Slovak Republic Masters 1 | R32 | clay | Zoltan Nagy | 6-2 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.