Jiri Pelikan defeated Karol Kucera 0-6 6-3 6-0 in the Slovak Republic Masters 4 semi-final on clay. The upset overturned the form book — Karol Kucera came in leading the head-to-head 1–0. Jiri Pelikan claimed a first win over Karol Kucera in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-08-26 | Czechoslovakia Masters 1 | R32 | clay | Karol Kucera | 6-2 2-6 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.