Marta Marrero defeated Angeles Montolio 6-1 6-2 in the Vienna round of 16 on clay. The upset overturned the form book — Angeles Montolio came in leading the head-to-head 3–0. Marta Marrero claimed a first win over Angeles Montolio in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-04-30 | Bol | R16 | clay | Angeles Montolio | 0-6 6-3 6-1 |
| 2001-02-26 | Acapulco | R32 | hard | Angeles Montolio | 6-3 6-4 |
| 1998-10-06 | Girona 10K | F | clay | Angeles Montolio | 6-4 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.