Patricio Donati defeated Alejandro Aramburu 5-7 7-5 6-1 in the Brazil 1 Masters 2 round of 32 on clay. The upset overturned the form book — Alejandro Aramburu came in leading the head-to-head 1–0, but Patricio Donati had been the form player, winning 3 of their last 8 on clay. Patricio Donati claimed a first win over Alejandro Aramburu in two meetings, narrowing the head-to-head to 1–1.
Donati P. came through in three sets.