Luciana Sarmenti defeated Nathalia Rossi 6-4 3-6 7-6 in the Cordoba 10K round of 16 on clay. The upset overturned the form book — Nathalia Rossi came in leading the head-to-head 5–1. Luciana Sarmenti narrowed the head-to-head to 5–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-08-13 | Trujillo 10K | QF | clay | Nathalia Rossi | 6-4 6-3 |
| 2011-05-16 | Itaparica 10K | R16 | hard | Nathalia Rossi | 7-5 6-3 |
| 2009-08-24 | Barueri 10K | R16 | hard | Luciana Sarmenti | 6-4 1-6 6-0 |
| 2009-06-08 | Santa Fe 10K | R16 | clay | Nathalia Rossi | 6-1 6-2 |
| 2008-05-05 | Buenos Aires 10K | R32 | clay | Nathalia Rossi | 6-3 7-5 |
| 2006-10-02 | Tucuman 10K | R32 | clay | Nathalia Rossi | 6-2 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.