Mariana Diaz Oliva defeated Jelena Kostanic Tosic 1-6 6-2 6-3 in the s Hertogenbosch round of 32 on grass. The upset overturned the form book — Jelena Kostanic Tosic came in defending last year's round of 32. Mariana Diaz Oliva extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-04-30 | Bol | R16 | clay | Mariana Diaz Oliva | 6-4 6-2 |
| 2000-01-17 | Australian Open | R128 | hard | Jelena Kostanic Tosic | 6-3 6-7(3) 6-4 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (19 vs 37). ATP, WTA & Challenger.