Maria Irigoyen defeated Andrea Koch Benvenuto 6-3 4-6 7-6 in the Santiago 25K qualifying round on clay. The result followed the form book — Maria Irigoyen came in leading the head-to-head 6–3. Maria Irigoyen extended the head-to-head to 7–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-08-04 | Caracas 25K | QF | hard | Maria Irigoyen | 2-6 6-4 6-3 |
| 2011-08-15 | La Paz 10K | F | clay | Andrea Koch Benvenuto | 6-0 7-6(1) |
| 2011-08-08 | Santa Cruz De La Sierra 10K | F | clay | Maria Irigoyen | 6-2 6-3 |
| 2009-04-13 | Buenos Aires 10K | QF | clay | Maria Irigoyen | 6-4 6-0 |
| 2007-08-27 | Santa Cruz 10K | SF | clay | Maria Irigoyen | 3-6 7-6(2) 6-0 |
| 2007-08-13 | Bogota 25K | R16 | clay | Maria Irigoyen | 6-0 7-5 |
| 2006-07-17 | Campos do Jordao 25K | R32 | hard | Maria Irigoyen | 6-3 6-3 |
| 2006-06-05 | Jalapa 10K | F | hard | Andrea Koch Benvenuto | 6-1 3-6 6-4 |
| 2005-08-22 | Bogota 10K | QF | clay | Andrea Koch Benvenuto | 6-1 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.