| 1. Round | 10/05/2020 | Pohang Steelers | - | Busan IPark | 2:0 | ||||
| 3. Round | 24/05/2020 | Ulsan Hyundai FC | - | Busan IPark | 1:1 | ||||
| 4. Round | 30/05/2020 | Busan IPark | - | Suwon Bluewings | 0:0 |  |
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| 5. Round | 06/06/2020 | Busan IPark | - | Sangju Sangmu | 1:1 | |
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| 6. Round | 14/06/2020 | Gwangju FC | - | Busan IPark | 3:1 | |
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| 11. Round | 10/07/2020 | Busan IPark | - | FC Seoul | 2:0 | ||||
| 12. Round | 18/07/2020 | Busan IPark | - | Gwangju FC | 0:0 | ||||
| 13. Round | 26/07/2020 | Daegu FC | - | Busan IPark | 3:0 | ||||
| 14. Round | 02/08/2020 | Busan IPark | - | Ulsan Hyundai FC | 1:2 | ||||
| 16. Round | 14/08/2020 | Seongnam FC | - | Busan IPark | 1:1 | ||||
| 17. Round | 22/08/2020 | Busan IPark | - | Pohang Steelers | 2:1 | ||||
| 18. Round | 29/08/2020 | Suwon Bluewings | - | Busan IPark | 3:1 | |
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| 19. Round | 05/09/2020 | FC Seoul | - | Busan IPark | 1:1 | |
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| 21. Round | 16/09/2020 | Busan IPark | - | Gangwon FC | 1:2 | ||||
| 22. Round | 20/09/2020 | Jeonbuk FC | - | Busan IPark | 2:0 |
South Korea