Miriam Dagostini defeated Adriana Serra Zanetti 6-1 6-2 in the Cali 25K round of 32 on clay. The upset overturned the form book — Adriana Serra Zanetti came in leading the head-to-head 1–0. Miriam Dagostini claimed a first win over Adriana Serra Zanetti in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-06-30 | Orbetello 25K | R16 | clay | Adriana Serra Zanetti | 6-3 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.