Cecilia Costa Melgar defeated Guadalupe Moreno 7-5 6-3 in the La Paz 10K qualifying round on clay. The upset overturned the form book — Guadalupe Moreno came in leading the head-to-head 2–0. Cecilia Costa Melgar claimed a first win over Guadalupe Moreno in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-08-05 | Santa Cruz 10K | SF | clay | Guadalupe Moreno | 6-4 6-2 |
| 2012-07-23 | La Paz 10K | F | clay | Guadalupe Moreno | 7-5 6-3 |