Mariana Mesa defeated Maria Vanina Garcia Sokol 6-4 2-6 6-2 in the Buenos Aires 10K round of 32 on clay. The upset overturned the form book — Maria Vanina Garcia Sokol came in leading the head-to-head 1–0. Mariana Mesa claimed a first win over Maria Vanina Garcia Sokol in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2002-08-26 | Santiago 10K | R16 | clay | Maria Vanina Garcia Sokol | 6-7(2) 6-2 6-0 |