| 21. Ronde | 23.07.2021 | Suwon Bluewings | - | Incheon United | 1:2 | ||||
| 23. Ronde | 08.08.2021 | Incheon United | - | Suwon FC | 0:0 | ||||
| 25. Ronde | 15.08.2021 | Gwangju FC | - | Incheon United | 1:0 | ||||
| 28. Ronde | 29.08.2021 | Ulsan Hyundai FC | - | Incheon United | 3:2 | ||||
| 26. Ronde | 06.10.2021 | Incheon United | - | Gangwon FC | 0:1 | ||||
| 24. Ronde | 24.10.2021 | Pohang Steelers | - | Incheon United | 0:1 |
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