Jelena Kostanic Tosic defeated Anna Lena Groenefeld 6-3 6-4 in the Zagreb 75K round of 32 on clay. The upset overturned the form book — Anna Lena Groenefeld came in leading the head-to-head 3–0. Jelena Kostanic Tosic claimed a first win over Anna Lena Groenefeld in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-06-09 | Zlin TBC 75K | F | clay | Anna Lena Groenefeld | 6-3 4-6 6-1 |
| 2007-04-21 | Fed Cup WG2 R1: GER vs CRO | RR | clay | Anna Lena Groenefeld | 6-4 6-3 |
| 2005-08-22 | New Haven | R32 | hard | Anna Lena Groenefeld | 6-4 6-1 |
Averages over each player's completed matches in the selected window (7 vs 68). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About