Giulia Casoni defeated Patty Van Acker 6-4 6-2 in the Palermo round of 32 on clay. The upset overturned the form book — Patty Van Acker came in leading the head-to-head 1–0. Giulia Casoni claimed a first win over Patty Van Acker in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-04-19 | Gelos 25K | QF | clay | Patty Van Acker | 6-4 7-6 |