Paula Ormaechea defeated Nathalia Rossi 6-1 6-4 in the Buenos Aires 25K round of 32 on clay. The upset overturned the form book — Nathalia Rossi came in leading the head-to-head 2–0. Paula Ormaechea claimed a first win over Nathalia Rossi in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-05-25 | Cordoba 10K | R16 | clay | Nathalia Rossi | 6-3 5-7 6-3 |
| 2008-07-21 | Brasilia 10K | R16 | clay | Nathalia Rossi | 6-2 6-4 |
Averages over each player's completed matches in the selected window (146 vs 2). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. Small sample — read as indicative. About