Ladislav Svarc defeated Mariano Delfino 6-3 6-3 in the Argentina F1 round of 16 on clay. The upset overturned the form book — Mariano Delfino came in leading the head-to-head 1–0, but Ladislav Svarc had been the form player, winning 6 of their last 10 on clay. Ladislav Svarc claimed a first win over Mariano Delfino in two meetings, narrowing the head-to-head to 1–1.
Svarc L. took it in straight sets.