Diana Sumova defeated Xenia Knoll 5-7 6-3 6-2 in the Trimbach 10K round of 32 on clay. The upset overturned the form book — Xenia Knoll came in leading the head-to-head 1–0. Diana Sumova claimed a first win over Xenia Knoll in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-05-07 | Bad Saarow 10K | R32 | clay | Xenia Knoll | 6-3 6-1 |
Averages over each player's completed matches in the selected window (6 vs 31). 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