Carla Lucero defeated Mailen Auroux 6-2 6-3 in the Asuncion 10K round of 16 on clay. The upset overturned the form book — Mailen Auroux came in leading the head-to-head 1–0, but Carla Lucero had been the form player, winning 3 of their last 7 on clay. Carla Lucero claimed a first win over Mailen Auroux in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-08-10 | Buenos Aires 10K | R16 | clay | Mailen Auroux | 7-6(3) 6-1 |