Leticia Sobral advanced when Maria Jose Argeri retired 6-0 in the Toronto 25K round of 32. Leticia Sobral narrowed the head-to-head to 6–4.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-11-13 | Mexico City 25K | R32 | clay | Leticia Sobral | 6-1 6-4 |
| 2006-11-06 | Mexico City 25K | R16 | hard | Maria Jose Argeri | 6-1 6-3 |
| 2006-10-30 | Mexico City 25K | R32 | hard | Maria Jose Argeri | 6-3 7-6(0) |
| 2004-10-18 | Goiania 10K | SF | clay | Maria Jose Argeri | 6-1 6-3 |
| 2004-10-11 | Mexico City 25K | R32 | hard | Leticia Sobral | 6-2 |
| 2004-10-04 | Juarez 25K | QF | clay | Maria Jose Argeri | 6-2 6-3 |
| 2004-09-06 | Santiago 10K | SF | clay | Maria Jose Argeri | 6-4 6-3 |
| 2004-08-09 | Caracas 10K | QF | hard | Maria Jose Argeri | 6-7(5) 6-2 6-4 |
| 2003-10-27 | Caracas 10K | SF | hard | Leticia Sobral | 7-5 6-4 |