Melisa Arevalo defeated Miriam Dagostini 3-6 6-3 6-0 in the Santiago 10K final on clay. The upset overturned the form book — Miriam Dagostini came in leading the head-to-head 2–0. Melisa Arevalo claimed a first win over Miriam Dagostini in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-11-23 | Lima 25K | R32 | clay | Miriam Dagostini | 6-2 6-1 |
| 1997-08-25 | Guayaquil 10K | SF | clay | Miriam Dagostini | 6-4 6-3 |