Time Zone – GMT-4 (America/New_York)
| 1 | Yangsan Eogok | Busan Kyotong | 1 : 2 |
| 2 | Bye | Busan | |
| 4 | Bye | Suwon FC | |
| 5 | Gwangju FC | Bye | |
| 7 | Gyeongju KHNP | Bye | |
| 8 | Seoul Jungnang | Paju Citizen | 0 : 3 |
| 9 | Ulsan HD | Bye | |
| 13 | Gimhae Jaemics | Chuncheon | 2 : 4 |
| 14 | Bye | Incheon | |
| 15 | Gyeongnam | Bye | |
| 16 | Pyeongchang United | Yangpyeong | 2 : 1 |
| 17 | Hyochang | Gijang United | 0 : 4 |
| 18 | Bye | Gimpo FC | |
| 19 | Cheonan City | Bye | |
| 20 | Cheongsol | Pocheon | 0 : 5 |
| 24 | Bye | Pohang | |
| 25 | Yeoju Citizen | Mokpo | 4 : 3 |
| 26 | Bye | Bucheon FC 1995 | |
| 28 | Bye | Jeju SK | |
| 29 | Gimcheon Sangmu | Bye | |
| 31 | Suwon Bluewings | Bye | |
| 32 | Bye | Seoul E-Land | |
| 33 | Incheon Seogot | Daejeon Korail | 0 : 9 |
| 34 | Bye | Cheongju | |
| 35 | Changwon | Bye | |
| 36 | Geonyung | Namyangju | 1 : 5 |
| 40 | Bye | Seoul | |
| 41 | Dangjin Citizen | Gangneung | 1 : 2 |
| 42 | Bye | Asan | |
| 44 | Bye | Daejeon | |
| 45 | Jeonbuk | Bye | |
| 47 | Ansan Greeners | Bye | |
| 48 | Jeonbuk Jeonju | Pyeongtaek Citizen | 0 : 6 |
| 49 | Sejong SA | Ulsan Citizen | 3 : 0 |
| 50 | Bye | Jeonnam | |
| 52 | Bye | Anyang | |
| 53 | Daegu | Bye | |
| 55 | Gimhae | Bye | |
| 56 | Yangcheon TNT | Geoje | 0 : 1 |
| 57 | Gangwon | Bye | |
| 61 | Siheung Citizen | Bye | |
| 62 | Bye | Seongnam | |
| 63 | Hwaseong | Bye | |
| 64 | Jinju Citizen | Yeoncheon | 1 : 0 |
| 1 | Busan Kyotong | Busan | 2 : 1 |
| 2 | Bye | Suwon FC | |
| 3 | Gwangju FC | Bye | |
| 4 | Gyeongju KHNP | Paju Citizen | 4 : 1 |
| 5 | Ulsan HD | Bye | |
| 7 | Chuncheon | Incheon | 0 : 3 |
| 8 | Gyeongnam | Pyeongchang United | 0 : 3 |
| 9 | Gijang United | Gimpo FC | 0 : 4 |
| 10 | Cheonan City | Pocheon | 1 : 0 |
| 12 | Bye | Pohang | |
| 13 | Yeoju Citizen | Bucheon FC 1995 | 1 : 3 |
| 14 | Bye | Jeju SK | |
| 15 | Gimcheon Sangmu | Bye | |
| 16 | Suwon Bluewings | Seoul E-Land | 2 : 1 |
| 17 | Daejeon Korail | Cheongju | 1 : 0 |
| 18 | Changwon | Namyangju | 1 : 2 |
| 20 | Bye | Seoul | |
| 21 | Gangneung | Asan | 1 : 0 |
| 22 | Bye | Daejeon | |
| 23 | Jeonbuk | Bye | |
| 24 | Ansan Greeners | Pyeongtaek Citizen | 3 : 1 |
| 25 | Sejong SA | Jeonnam | 3 : 1 |
| 26 | Bye | Anyang | |
| 27 | Daegu | Bye | |
| 28 | Gimhae | Geoje | 5 : 1 |
| 29 | Gangwon | Bye | |
| 31 | Siheung Citizen | Seongnam | 3 : 2 |
| 32 | Hwaseong | Jinju Citizen | 1 : 0 |
| 1 | Busan Kyotong | Suwon FC | 1 : 2 |
| 2 | Gwangju FC | Gyeongju KHNP | 2 : 0 |
| 3 | Ulsan HD | Bye | |
| 4 | Incheon | Pyeongchang United | 2 : 1 |
| 5 | Gimpo FC | Cheonan City | 2 : 1 |
| 6 | Bye | Pohang | |
| 7 | Bucheon FC 1995 | Jeju SK | 1 : 0 |
| 8 | Gimcheon Sangmu | Suwon Bluewings | 2 : 0 |
| 9 | Daejeon Korail | Namyangju | 3 : 0 |
| 10 | Bye | Seoul | |
| 11 | Gangneung | Daejeon | 1 : 2 |
| 12 | Jeonbuk | Ansan Greeners | 3 : 0 |
| 13 | Sejong SA | Anyang | 0 : 1 |
| 14 | Daegu | Gimhae | 2 : 0 |
| 15 | Gangwon | Bye | |
| 16 | Siheung Citizen | Hwaseong | 1 : 0 |
| 1 | Suwon FC | Gwangju FC | 1 : 2 |
| 2 | Ulsan HD | Incheon | 3 : 0 |
| 3 | Gimpo FC | Pohang | 2 : 1 |
| 4 | Bucheon FC 1995 | Gimcheon Sangmu | 3 : 1 |
| 5 | Daejeon Korail | Seoul | 1 : 2 |
| 6 | Daejeon | Jeonbuk | 2 : 3 |
| 7 | Anyang | Daegu | 1 : 2 |
| 8 | Gangwon | Siheung Citizen | 2 : 1 |
| 1 | Gwangju FC | Ulsan HD | |
| 2 | Gimpo FC | Bucheon FC 1995 | |
| 3 | Seoul | Jeonbuk | |
| 4 | Daegu | Gangwon |
| 1 | TBD #1 | TBD #2 | |
| 2 | TBD #3 | TBD #4 |
| 1 | TBD #1 | TBD #2 |
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