Andrea Benitez defeated Mailen Auroux 6-2 6-4 in the Buenos Aires 10K semi-final on clay. The upset overturned the form book — Mailen Auroux came in leading the head-to-head 2–1, but Andrea Benitez had been the form player, winning 4 of their last 7 on clay. Andrea Benitez narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-12-12 | Santiago 25K | R32 | clay | Mailen Auroux | 7-6(1) 7-6(5) |
| 2011-05-23 | Itaparica 25K | R32 | hard | Andrea Benitez | 5-7 6-2 6-4 |
| 2007-04-30 | Buenos Aires 10K | R32 | clay | Mailen Auroux | 6-3 4-6 6-2 |