Natalia Gussoni defeated Daniela Olivera 6-4 4-6 6-2 in the Campos 10K qualifying round on clay. The result followed the form book — Natalia Gussoni came in leading the head-to-head 1–0. Natalia Gussoni extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-09-15 | La Paz 10K | R16 | clay | Natalia Gussoni | 7-5 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.