Marta Marrero defeated Cristina Torrens Valero 6-3 6-1 in the Knokke-Heist quarter-final on clay. The upset overturned the form book — Cristina Torrens Valero came in leading the head-to-head 2–1, defending last year's round of 32. Marta Marrero narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-03-22 | Miami | Q64 | hard | Marta Marrero | 6-2 6-1 |
| 2003-07-14 | Modena 50K | QF | clay | Cristina Torrens Valero | 5-7 7-5 7-6(7) |
| 2001-07-30 | Basle | R16 | clay | Cristina Torrens Valero | 6-4 5-7 6-3 |
Averages over each player's completed matches in the selected window (11 vs 4). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About