English
Jornada 1
| 23 May 12 |  Gangwon FC |
1-0 |  Korea University |
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| 23 May 12 |  Seongnam FC |
5-1 |  Suwon FC |
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| 23 May 12 |  Gimcheon Sangmu FC |
2-1 |  Ulsan Dolphins |
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| 23 May 12 |  Jeju United |
2-1 |  Daejeon Korail |
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| 23 May 12 |  Jeonbuk Hyundai Motors |
3-1 |  Cheonan City |
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| 23 May 12 |  Busan Transportation |
2-2 |  Gyeongnam FC |
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| 23 May 12 |  Daegu FC |
3-1 |  Chungnam Asan FC |
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| 23 May 12 |  Chungju Hummel |
2-4 |  Gwangju FC |
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| 23 May 12 |  Daejeon Citizen |
2-1 |  Gyeongju Citizen |
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| 23 May 12 |  Pohang Steelers |
4-0 |  Chungbuk Cheongju |
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| 23 May 12 |  Incheon United |
3-0 |  Gimhae City |
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| 23 May 12 |  FC Seoul |
3-0 |  Mokpo City |
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| 23 May 12 |  Suwon Bluewings |
5-2 |  Gangneung City |
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| 23 May 12 |  Jeonnam Dragons |
1-0 |  Changwon City |
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| 23 May 12 |  Busan I Park |
0-1 |  Goyang KB |
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| 23 May 12 |  Ulsan HD FC |
1-0 |  Gyeongju HNP |
Jornada 2
| 20 Jun 12 | Seongnam FC |
1-2 | Ulsan HD FC |
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| 20 Jun 12 | Jeonbuk Hyundai Motors |
1-0 | Jeonnam Dragons |
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| 20 Jun 12 | Jeju United |
2-0 | Daegu FC |
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| 20 Jun 12 | Daejeon Citizen |
2-2 | Gimcheon Sangmu FC |
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| 20 Jun 12 | FC Seoul |
0-2 | Suwon Bluewings |
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| 20 Jun 12 | Incheon United |
2-2 | Goyang KB |
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| 20 Jun 12 | Pohang Steelers |
3-1 | Gwangju FC |
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| 20 Jun 12 | Gyeongnam FC |
1-0 | Gangwon FC |
Jornada 3
| 01 Ago 12 | Pohang Steelers |
3-2 | Jeonbuk Hyundai Motors |
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| 01 Ago 12 | Daejeon Citizen |
1-2 | Jeju United |
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| 01 Ago 12 | Gyeongnam FC |
1-1 | Suwon Bluewings |
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| 01 Ago 12 | Ulsan HD FC |
6-1 | Goyang KB |
Jornada 4
| 01 Sep 12 | Pohang Steelers |
2-1 | Jeju United |
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| 01 Sep 12 | Ulsan HD FC |
0-3 | Gyeongnam FC |
Jornada 5
| 20 Oct 12 | Pohang Steelers |
1-0 | Gyeongnam FC |