| 1. Round | 15/09/2012 | Seongnam Ilhwa Chunma | - | Daejeon Citizen | 1:2 | ||||
| 2. Round | 22/09/2012 | Gangwon FC | - | Seongnam Ilhwa Chunma | 0:1 | ||||
| 3. Round | 26/09/2012 | Daegu FC | - | Seongnam Ilhwa Chunma | 1:0 | ||||
| 5. Round | 06/10/2012 | Incheon United | - | Seongnam Ilhwa Chunma | 0:0 | ||||
| 6. Round | 21/10/2012 | Gwangju FC | - | Seongnam Ilhwa Chunma | 2:3 |  |
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| 8. Round | 03/11/2012 | Seongnam Ilhwa Chunma | - | Incheon United | 1:2 | ||||
| 9. Round | 11/11/2012 | Daejeon Citizen | - | Seongnam Ilhwa Chunma | 1:1 | ||||
| 10. Round | 17/11/2012 | Seongnam Ilhwa Chunma | - | Gwangju FC | 3:4 | ||||
| 11. Round | 21/11/2012 | Seongnam Ilhwa Chunma | - | Daegu FC | 0:2 | ||||
| 12. Round | 24/11/2012 | Chunnam Dragons | - | Seongnam Ilhwa Chunma | 2:0 | ||||
| 13. Round | 28/11/2012 | Seongnam Ilhwa Chunma | - | Gangwon FC | 0:1 |
South Korea