Maria Wolfbrandt defeated Arantxa Parra Santonja 6-3 6-0 in the Madrid 10K round of 16 on clay. The upset overturned the form book — Arantxa Parra Santonja came in leading the head-to-head 1–0. Maria Wolfbrandt claimed a first win over Arantxa Parra Santonja in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-03-17 | Castellon 25K | R32 | clay | Arantxa Parra Santonja | 6-2 7-6(4) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.