Markus Zillner defeated Ivan Vajda 6-2 3-6 6-3 in the Germany F10 round of 16 on clay. The upset overturned the form book — Ivan Vajda came in leading the head-to-head 1–0, but Markus Zillner had been the form player, winning 4 of their last 8 on clay. Markus Zillner claimed a first win over Ivan Vajda in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-04-05 | Croatia 1 Masters 2 | R16 | clay | Ivan Vajda | 3-6 6-3 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.