Juan Vazquez Valenzuela defeated Andres Molteni 6-3 6-2 in the Chile F15 round of 16 on clay. The upset overturned the form book — Andres Molteni came in leading the head-to-head 3–0, but Juan Vazquez Valenzuela had been the form player, winning 3 of their last 7 on clay. Juan Vazquez Valenzuela claimed a first win over Andres Molteni in four meetings, narrowing the head-to-head to 3–1.
Vazquez Valenzuela J. took it in straight sets.