Estefania Donnet defeated Agustina Sol Eskenazi 6-3 7-5 in the Buenos Aires 25K round of 32 on clay. The upset overturned the form book — Agustina Sol Eskenazi came in leading the head-to-head 2–0, but Estefania Donnet had been the form player, winning 6 of their last 10 on clay. Estefania Donnet claimed a first win over Agustina Sol Eskenazi in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-10-12 | Bauru 10K | R16 | clay | Agustina Sol Eskenazi | 6-2 6-4 |
| 2009-04-13 | Buenos Aires 10K | R32 | clay | Agustina Sol Eskenazi | 6-3 6-4 |