Maria Irigoyen defeated Fernanda Hermenegildo 6-1 6-2 in the Buenos Aires 10K round of 16 on clay. The result followed the form book — Maria Irigoyen came in leading the head-to-head 3–0. Maria Irigoyen extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-06-01 | Villa Del DiqueCordoba 10K | SF | clay | Maria Irigoyen | 6-3 6-3 |
| 2009-04-27 | Buenos Aires 10K | QF | clay | Maria Irigoyen | 1-6 6-3 7-6(5) |
| 2006-08-21 | Bogota 10K | R32 | clay | Maria Irigoyen | 6-4 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.