Petra Mandula defeated Miriam Oremans 4-6 6-4 6-2 in the US Open round of 128 on hard. The upset overturned the form book — Miriam Oremans came in leading the head-to-head 1–0, defending last year's round of 64. Petra Mandula claimed a first win over Miriam Oremans in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-05-08 | Warsaw | R16 | clay | Miriam Oremans | 6-3 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.