Maria Irigoyen defeated Tatiana Bua 6-2 5-7 6-3 in the Asuncion 25K 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 |
|---|---|---|---|---|---|
| 2009-04-13 | Buenos Aires 10K | SF | clay | Maria Irigoyen | 6-4 6-4 |
| 2008-09-01 | Buenos Aires Garin 10K | SF | clay | Maria Irigoyen | 7-5 6-4 |
| 2007-04-30 | Buenos Aires 10K | R16 | clay | Maria Irigoyen | 6-7(3) 7-5 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.