Diana Sumova defeated Anna Klasen 3-6 6-1 6-4 in the Darmstadt 25K round of 32 on clay. The result followed the form book — Diana Sumova came in leading the head-to-head 1–0. Diana Sumova extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-07-18 | Horb 10K | R16 | clay | Diana Sumova | 1-6 6-3 7-5 |
Averages over each player's completed matches in the selected window (6 vs 101). 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