Catalina Pella defeated Tatiana Bua 6-4 5-7 6-2 in the Buenos Aires 10K round of 16 on clay. The upset overturned the form book — Tatiana Bua came in leading the head-to-head 1–0, but Catalina Pella had been the form player, winning 3 of their last 4 on clay. Catalina Pella claimed a first win over Tatiana Bua in two meetings, levelling the head-to-head at 1–1.
Pella C. came through in three sets.
Catalina Pella beat Tatiana Bua 6-4 5-7 6-2. Umpiry, "Catalina Pella vs Tatiana Bua — Buenos Aires 10K Round of 16", https://umpiry.com/match/2011-02-07/bua-vs-pella-buenos-aires-10k-r16?utm_source=cite (as of 7 February 2011).