Guadalupe Perez Rojas defeated Cecilia Costa Melgar 4-6 6-4 6-3 in the Santiago 25K round of 32 on clay. The upset overturned the form book — Cecilia Costa Melgar came in leading the head-to-head 1–0, but Guadalupe Perez Rojas had been the form player, winning 3 of their last 6 on clay. Guadalupe Perez Rojas claimed a first win over Cecilia Costa Melgar in two meetings, narrowing the head-to-head to 1–1.
Perez Rojas G. came through in three sets.