Paula Racedo defeated Mercedes Paz 6-3 4-6 6-3 in the Buenos Aires 10K round of 16 on clay. The upset overturned the form book — Mercedes Paz came in leading the head-to-head 1–0, but Paula Racedo had been the form player, winning 4 of their last 7 on clay. Paula Racedo claimed a first win over Mercedes Paz in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-09-21 | Tucuman 25K | R32 | clay | Mercedes Paz | 6-2 6-2 |