Ekstraklasa
- 17O
- 17W
- 17S
90% or more have a feeSome have a feeNo fee recordedS summer, W winter, O other dates
2017-18 · Winter window
By club
- Jagiellonia Białystok1 in2 out
- Lech Poznań2 in1 out
- Legia Warsaw2 in1 out
- Piast Gliwice2 in1 out
- Zagłębie Lubin2 in1 out
- Korona Kielce2 in0 out
- Lechia Gdańsk1 in1 out
- Nieciecza1 in0 out
- Cracovia Kraków0 in1 out
- Górnik Zabrze1 in0 out
- Wisła Kraków0 in1 out
Sources: Wikipedia (CC BY-SA 4.0), API-Football · Data sources