| 1. Ronde | 01.03.2021 | Ulsan Hyundai FC | - | Gangwon FC | 5:0 | ||||
| 2. Ronde | 06.03.2021 | Gangwon FC | - | Pohang Steelers | 1:3 | ||||
| 4. Ronde | 14.03.2021 | Suwon Bluewings | - | Gangwon FC | 1:1 |  |
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| 5. Ronde | 17.03.2021 | Gangwon FC | - | Seongnam FC | 0:0 | ||||
| 8. Ronde | 07.04.2021 | Jeju United | - | Gangwon FC | 1:1 | ||||
| 9. Ronde | 10.04.2021 | Gangwon FC | - | Daegu FC | 3:0 | ||||
| 11. Ronde | 20.04.2021 | Gangwon FC | - | Gwangju FC | 0:1 | ||||
| 13. Ronde | 02.05.2021 | Incheon United | - | Gangwon FC | 1:0 | ||||
| 14. Ronde | 08.05.2021 | Pohang Steelers | - | Gangwon FC | 1:1 | ||||
| 15. Ronde | 12.05.2021 | Gangwon FC | - | Ulsan Hyundai FC | 2:2 | |
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| 16. Ronde | 15.05.2021 | Gangwon FC | - | Suwon FC | 0:0 | ||||
| 18. Ronde | 23.05.2021 | Gangwon FC | - | FC Seoul | 0:0 | ||||
| 19. Ronde | 30.05.2021 | Daegu FC | - | Gangwon FC | 1:0 | ||||
| 17. Ronde | 26.06.2021 | Seongnam FC | - | Gangwon FC | 1:2 | |
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| 20. Ronde | 21.07.2021 | Gwangju FC | - | Gangwon FC | 3:1 | ||||
| 22. Ronde | 01.08.2021 | Gangwon FC | - | Suwon Bluewings | 3:0 |
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