Mateusz Kowalczyk defeated Marcin Gawron 3-6 6-4 6-0 in the Poland F4 round of 16 on clay. The upset overturned the form book — Marcin Gawron came in leading the head-to-head 1–0. Mateusz Kowalczyk claimed a first win over Marcin Gawron in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-05-25 | Poland F2 | R16 | clay | Marcin Gawron | 6-1 7-5 |
Averages over each player's completed matches in the selected window (3 vs 24). 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