| 1. Ronde | 04.03.2012 | Jeju United | - | Incheon United | 3:1 |  |
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| 2. Ronde | 11.03.2012 | Incheon United | - | Suwon Bluewings | 0:2 | ||||
| 3. Ronde | 18.03.2012 | Daegu FC | - | Incheon United | 1:0 | ||||
| 4. Ronde | 24.03.2012 | Incheon United | - | Daejeon Citizen | 2:1 | ||||
| 8. Ronde | 15.04.2012 | Sangju Sangmu | - | Incheon United | 1:0 | ||||
| 9. Ronde | 22.04.2012 | Incheon United | - | Ulsan Hyundai FC | 0:1 | ||||
| 10. Ronde | 29.04.2012 | Chunnam Dragons | - | Incheon United | 0:0 | ||||
| 11. Ronde | 05.05.2012 | Incheon United | - | Jeonbuk FC | 3:3 | ||||
| 15. Ronde | 14.06.2012 | Incheon United | - | Pohang Steelers | 1:1 | ||||
| 21. Ronde | 15.07.2012 | Incheon United | - | FC Seoul | 3:2 | ||||
| 28. Ronde | 18.08.2012 | Ulsan Hyundai FC | - | Incheon United | 0:1 | ||||
| 29. Ronde | 23.08.2012 | Jeonbuk FC | - | Incheon United | 1:2 |
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