Karolina Kosinska defeated Lina Stanciute 6-2 7-5 in the Warsaw 25K qualifying round on clay. The upset overturned the form book — Lina Stanciute came in leading the head-to-head 3–0. Karolina Kosinska claimed a first win over Lina Stanciute in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-02-01 | Sutton 25K | R16 | hard | Lina Stanciute | 5-7 6-2 6-1 |
| 2005-06-20 | Fontanafredda 25K | R32 | clay | Lina Stanciute | 6-3 7-5 |
| 2004-10-04 | Lafayette LA 25K | F | clay | Lina Stanciute | 3-6 6-3 7-5 |
Averages over each player's completed matches in the selected window (1 vs 2). 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. Small sample — read as indicative. About