Mariana Diaz Oliva defeated Ludmila Cervanova 6-4 6-3 in the Sao Paulo 25K round of 32 on clay. The upset overturned the form book — Ludmila Cervanova came in leading the head-to-head 3–1. Mariana Diaz Oliva narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-02-20 | Bogota | R16 | clay | Ludmila Cervanova | 1-6 6-2 6-1 |
| 2003-01-13 | Australian Open | R128 | hard | Ludmila Cervanova | 7-6 6-2 |
| 2002-07-29 | Saint Gaudens 50K | SF | clay | Mariana Diaz Oliva | 6-4 2-6 6-4 |
| 2002-02-18 | Bogota | R32 | clay | Ludmila Cervanova | 7-6 3-6 6-0 |
Averages over each player's completed matches in the selected window (22 vs 16). 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