Bastian Malla defeated Matias Zukas 7-6 6-1 in the M15 Sao Paulo 1 semi-final on clay. The upset overturned the form book — Matias Zukas came in leading the head-to-head 1–0, but Bastian Malla had been the form player, winning 6 of their last 9 on clay. Bastian Malla claimed a first win over Matias Zukas in two meetings, narrowing the head-to-head to 1–1.
Malla B. took it in straight sets.