Ekstraklasa
- 17O
- 17W
- 17S
90% or more have a feeSome have a feeNo fee recordedS summer, W winter, O other dates
2017-18 · Summer window
By club
- Lechia Gdańsk4 in3 out
- Lech Poznań3 in2 out
- Cracovia Kraków2 in1 out
- Jagiellonia Białystok1 in2 out
- Wisła Płock1 in2 out
- Nieciecza1 in1 out
- Górnik Zabrze1 in1 out
- Legia Warsaw0 in2 out
- Piast Gliwice1 in1 out
- Pogoń Szczecin1 in1 out
- Śląsk Wrocław1 in1 out
- Zagłębie Lubin2 in0 out
- Wisła Kraków1 in0 out
Sources: Wikipedia (CC BY-SA 4.0), API-Football · Data sources