Eleni Daniilidou defeated Anna Lena Groenefeld 1-6 7-5 6-3 in the Sofia 100K round of 16 on clay. The upset overturned the form book — Anna Lena Groenefeld came in leading the head-to-head 3–1, but Eleni Daniilidou had been the form player, winning 3 of their last 5 on clay. Eleni Daniilidou narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-09-27 | Athens 50K | R32 | hard | Eleni Daniilidou | 6-3 4-6 6-4 |
| 2010-08-02 | Copenhagen | QF | hard | Anna Lena Groenefeld | 6-4 6-7(7) 6-3 |
| 2005-09-26 | Luxembourg | R32 | hard | Anna Lena Groenefeld | 6-4 6-4 |
| 2005-08-01 | San Diego | R64 | hard | Anna Lena Groenefeld | 7-6 6-4 |
Averages over each player's completed matches in the selected window (70 vs 16). 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