Macall Harkins defeated Maria Fernanda Alvarez Teran 6-1 6-2 in the Metepec 10K qualifying round on hard. The upset overturned the form book — Maria Fernanda Alvarez Teran came in leading the head-to-head 1–0. Macall Harkins claimed a first win over Maria Fernanda Alvarez Teran in two meetings, levelling the head-to-head at 1–1.
Harkins M. took it in straight sets.
Macall Harkins beat Maria Fernanda Alvarez Teran 6-1 6-2. Umpiry, "Macall Harkins vs Maria Fernanda Alvarez Teran — Metepec 10K Qualifying Round", https://umpiry.com/match/2010-03-08/harkins-vs-teran-metepec-10k-qf?utm_source=cite (as of 8 March 2010).