Zdenek Kolar defeated Vasile Antonescu 7-6 6-2 in the Croatia F1 round of 32 on clay. The upset overturned the form book — Vasile Antonescu came in leading the head-to-head 1–0. Zdenek Kolar claimed a first win over Vasile Antonescu in two meetings, narrowing the head-to-head to 1–1.
Kolar Z. took it in straight sets.