Jedrzej Zarski defeated Mateusz Kowalczyk 6-4 6-4 in the Poland F6 round of 32 on clay. The result followed the form book — Jedrzej Zarski came in leading the head-to-head 2–0. Jedrzej Zarski extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-08-04 | Slovak Rep F1 | QF | clay | Jedrzej Zarski | 6-3 6-3 |
| 2005-05-30 | Poland F3 | R32 | clay | Jedrzej Zarski | 6-4 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.