K League 1
- 20O
- 20W
- 20S
90% or more have a feeSome have a feeNo fee recordedS summer, W winter, O other dates
2020-21 · Summer window
By club
- Jeonbuk Hyundai Motors9 in8 out
- Gimcheon Sangmu11 in3 out
- Pohang Steelers7 in7 out
- Suwon FC12 in2 out
- Ulsan HD7 in7 out
- Seongnam FC8 in5 out
- Busan IPark3 in7 out
- FC Seoul4 in6 out
- Gangwon FC6 in4 out
- Daegu4 in5 out
- Gwangju FC4 in5 out
- Incheon United8 in1 out
- Jeju SK5 in2 out
- Suwon Samsung Bluewings1 in5 out
Sources: Wikipedia (CC BY-SA 4.0), API-Football · Data sources