K League 1
- 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
- Pohang Steelers3 in1 out
- FC Seoul1 in1 out
- Gangwon FC1 in1 out
- Gwangju FC0 in2 out
- Incheon United0 in2 out
- Daegu0 in1 out
- Gimcheon Sangmu1 in0 out
- Jeju SK1 in0 out
- Jeonnam Dragons1 in0 out
- Suwon Samsung Bluewings1 in0 out
Sources: Wikipedia (CC BY-SA 4.0), API-Football · Data sources