Virginia Sadi defeated Florencia Basile 7-6 3-6 6-3 in the Buenos Aires 10K round of 16 on clay. The upset overturned the form book — Florencia Basile came in leading the head-to-head 1–0. Virginia Sadi claimed a first win over Florencia Basile in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-10-12 | Asuncion 10K | R32 | clay | Florencia Basile | 6-2 6-2 |