Jan Vacek defeated Ivan Vajda 7-6 6-4 in the Croatia F1 qualifying round on hard. The upset overturned the form book — Ivan Vajda came in leading the head-to-head 1–0. Jan Vacek 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 | R32 | clay | Ivan Vajda | 6-4 1-6 6-2 |
Averages over each player's completed matches in the selected window (89 vs 2). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. Small sample — read as indicative. About