Mariana Demichelli Vergara defeated Daniela Seguel 6-7 6-4 6-1 in the Santiago 10K round of 32 on clay. The upset overturned the form book — Daniela Seguel came in leading the head-to-head 1–0. Mariana Demichelli Vergara claimed a first win over Daniela Seguel in two meetings, narrowing the head-to-head to 1–1.
Demichelli Vergara M. came through in three sets.