| 1. Round | 16/09/2012 | Jeju United | - | Jeonbuk FC | 0:1 | ||||
| 2. Round | 23/09/2012 | Suwon Bluewings | - | Jeju United | 2:1 | ||||
| 3. Round | 27/09/2012 | Jeju United | - | Pohang Steelers | 2:1 | ||||
| 4. Round | 03/10/2012 | Gyeongnam FC | - | Jeju United | 0:0 | ||||
| 5. Round | 08/10/2012 | Ulsan Hyundai FC | - | Jeju United | 0:0 | ||||
| 6. Round | 21/10/2012 | Jeju United | - | FC Seoul | 1:2 |  |
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| 10. Round | 18/11/2012 | Busan IPark | - | Jeju United | 1:2 | ||||
| 12. Round | 25/11/2012 | Jeju United | - | Ulsan Hyundai FC | 2:2 |
South Korea