Virginie Razzano defeated Klara Koukalova 6-3 6-2 in the US Open round of 128 on hard. The upset overturned the form book — Klara Koukalova came in leading the head-to-head 3–1. Virginie Razzano narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-06-09 | Birmingham | R32 | grass | Klara Koukalova | 5-7 7-6(5) 7-6(0) |
| 2008-05-26 | Roland Garros | R128 | clay | Klara Koukalova | 4-6 6-3 6-2 |
| 2007-05-07 | Prague | R16 | clay | Klara Koukalova | 6-2 7-6(1) |
| 2003-07-07 | Palermo | R16 | clay | Virginie Razzano | 6-2 6-1 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (128 vs 76). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About