Tsvetana Pironkova defeated Ekaterina Bychkova 6-4 6-4 in the Athens 100K round of 16 on hard. The upset overturned the form book — Ekaterina Bychkova came in leading the head-to-head 2–0. Tsvetana Pironkova claimed a first win over Ekaterina Bychkova in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-10-22 | Bratislava 1 100K | R16 | hard | Ekaterina Bychkova | 3-6 6-4 6-2 |
| 2004-09-27 | Belgrade 25K | SF | clay | Ekaterina Bychkova | 6-3 4-6 7-6(4) |
Averages over each player's completed matches in the selected window (199 vs 37). 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