Andrea Koch Benvenuto defeated Luciana Sarmenti 6-4 6-4 in the Santiago 25K round of 32 on clay. The result followed the form book — Andrea Koch Benvenuto came in leading the head-to-head 2–1. Andrea Koch Benvenuto extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-02-14 | Buenos Aires 10K | R32 | clay | Andrea Koch Benvenuto | 6-1 6-3 |
| 2008-10-27 | Lima 10K | R16 | clay | Luciana Sarmenti | 6-3 5-7 6-4 |
| 2008-10-20 | Lima 10K | R16 | clay | Andrea Koch Benvenuto | 7-5 7-5 |