Emilia Yorio defeated Maria Irigoyen 6-3 6-4 in the Bell Ville 10K round of 16 on clay. The upset overturned the form book — Maria Irigoyen came in leading the head-to-head 3–0, but Emilia Yorio had been the form player, winning 2 of their last 4 on clay. Emilia Yorio claimed a first win over Maria Irigoyen in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-04-27 | Buenos Aires 10K | R16 | clay | Maria Irigoyen | 6-4 2-6 6-4 |
| 2008-11-24 | Buenos Aires 10K | R16 | clay | Maria Irigoyen | 3-6 6-1 6-2 |
| 2007-05-07 | Cordoba 10K | QF | clay | Maria Irigoyen | 6-4 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.