Marta Marrero defeated Lubomira Bacheva 6-2 6-2 in the Estoril round of 32 on clay. The upset overturned the form book — Lubomira Bacheva came in defending last year's round of 16. Marta Marrero extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-09-20 | Sofia 25K | F | clay | Marta Marrero | 6-2 6-3 |
| 1999-09-06 | Denain 25K | QF | clay | Lubomira Bacheva | 6-3 6-4 |
Averages over each player's completed matches in the selected window (11 vs 1). 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. Small sample — read as indicative. About