Elizabeth Ferris defeated Cecilia Costa Melgar 6-0 6-4 in the Puebla 10K semi-final on hard. The upset overturned the form book — Cecilia Costa Melgar came in leading the head-to-head 1–0, but Elizabeth Ferris had been the form player, winning 2 of their last 4 on hard. Elizabeth Ferris claimed a first win over Cecilia Costa Melgar in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-03-19 | Metepec 10K | R16 | hard | Cecilia Costa Melgar | 2-6 6-4 6-3 |