Maria Constanza De Las Mercedes Vega defeated Ivania Martinich 6-2 6-4 in the Marcos Juarez 10K qualifying round on clay. The result followed the form book — Maria Constanza De Las Mercedes Vega came in leading the head-to-head 1–0. Maria Constanza De Las Mercedes Vega extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-09-16 | Rosario 10K | R32 | clay | Maria Constanza De Las Mercedes Vega | 7-6(2) 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.