Mykyta Mashtakov defeated Matias Zukas 6-2 6-3 in the M15 Sibenik 2 round of 32 on clay. The upset overturned the form book — Matias Zukas came in leading the head-to-head 1–0, but Mykyta Mashtakov had been the form player, winning 6 of their last 9 on clay. Mykyta Mashtakov claimed a first win over Matias Zukas in two meetings, narrowing the head-to-head to 1–1.
Mashtakov M. took it in straight sets.