Karol Krawczynski advanced when Viktor Kostin retired 6-4 1-0 in the Poland F4 qualifying round of 32. Karol Krawczynski claimed a first win over Viktor Kostin in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-08-25 | Poland F6 | Q64 | clay | Viktor Kostin | 6-1 6-4 |
Averages over each player's completed matches in the selected window (1 vs 1). ATP, WTA & Challenger.
wins 58% of points on serve vs Kostin V.
wins 56% of points on serve vs Krawczynski K.
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