Gergely Kisgyorgy defeated Mark Joachim 6-4 6-3 in the Mexico F5 qualifying round on hard. The upset overturned the form book — Mark Joachim came in leading the head-to-head 1–0. Gergely Kisgyorgy claimed a first win over Mark Joachim in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1993-07-26 | Hungary Masters 4 | R32 | clay | Mark Joachim | 6-2 6-7 7-6 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.