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
- Gimcheon Sangmu3 in2 out
- Incheon United2 in1 out
- Suwon Samsung Bluewings1 in2 out
- Jeju SK1 in1 out
- Jeonbuk Hyundai Motors0 in2 out
- Pohang Steelers1 in1 out
- Ulsan HD1 in1 out
- FC Seoul1 in0 out
- Gangwon FC0 in1 out
- Suwon FC1 in0 out
Sources: Wikipedia (CC BY-SA 4.0), API-Football · Data sources