Alena Nesticka defeated Nadia Petrova 7-6 3-6 6-4 in the Olsztyn 10K round of 32 on clay. The upset overturned the form book — Nadia Petrova came in leading the head-to-head 1–0. Alena Nesticka claimed a first win over Nadia Petrova in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-01-01 | Gold Coast | Q32 | hard | Nadia Petrova | 6-1 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.