Mariya Koryttseva defeated Agnieszka Radwanska 4-6 6-4 6-2 in the Istanbul 25K qualifying round on hard. The upset overturned the form book — Agnieszka Radwanska came in leading the head-to-head 5–0. Mariya Koryttseva claimed a first win over Agnieszka Radwanska in six meetings, narrowing the head-to-head to 5–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-05-25 | Roland Garros | R64 | clay | Agnieszka Radwanska | 6-1 6-4 |
| 2008-07-28 | Stockholm | R16 | hard | Agnieszka Radwanska | 6-1 6-1 |
| 2008-05-26 | Roland Garros | R128 | clay | Agnieszka Radwanska | 6-4 6-3 |
| 2008-03-10 | Indian Wells | R64 | hard | Agnieszka Radwanska | 6-1 7-6 |
| 2007-07-16 | Palermo | R32 | clay | Agnieszka Radwanska | 6-1 6-4 |
Averages over each player's completed matches in the selected window (67 vs 198). 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