Nuria Llagostera Vives defeated Marta Marrero 2-6 6-4 6-1 in the St Cugat 25K qualifying round on clay. The upset overturned the form book — Marta Marrero came in leading the head-to-head 3–2. Nuria Llagostera Vives narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-09-27 | Hasselt | R32 | hard | Nuria Llagostera Vives | 6-0 6-7 6-0 |
| 2004-02-02 | Ortisei 75K | R32 | carpet | Nuria Llagostera Vives | 6-3 7-6(4) |
| 2000-05-15 | Oporto 75K | QF | clay | Marta Marrero | 6-2 6-4 |
| 2000-04-03 | Dubai 75K | QF | hard | Marta Marrero | 6-2 6-3 |
| 1999-07-12 | Getxo 25K | SF | clay | Marta Marrero | 7-6 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.