Andrea Koch Benvenuto defeated Luciana Sarmenti 6-1 6-3 in the Buenos Aires 10K round of 32 on clay. Andrea Koch Benvenuto extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-11-26 | Santiago 25K | R32 | clay | Andrea Koch Benvenuto | 6-4 6-4 |
| 2008-10-27 | Lima 10K | R16 | clay | Luciana Sarmenti | 6-3 5-7 6-4 |