2020
1/64-finals
| 1 | Ulsan Hyundai | Bye | |
| 5 | Gimhae | Busan Kyotong | 1 : 0 |
| 6 | Bye | Cheonan City | |
| 7 | Gyeongju KHNP | Bye | |
| 8 | SMCE | Haneul | 3 : 1 |
| 10 | Bye | Gwangju FC | |
| 11 | Paju Citizen | Yangju | 3 : 0 |
| 12 | Bye | Gimpo FC | |
| 13 | Gangwon | Bye | |
| 15 | Gangneung | Bye | |
| 16 | Icheon | Cheongju | 0 : 1 |
| 17 | Chuncheon | Byeoksan | 4 : 0 |
| 18 | Bye | Daejeon | |
| 19 | Ansan Greeners | Bye | |
| 20 | Daedeok | Siheung Citizen | 0 : 2 |
| 24 | Bye | Seoul | |
| 25 | Gimhae Jaemics | Ulsan Citizen | 1 : 5 |
| 26 | Bye | Bucheon FC 1995 | |
| 28 | Bye | Gimcheon Sangmu | |
| 29 | Pohang | Bye | |
| 31 | Gyeongju Citizen | Bye | |
| 32 | Pyeongtaek Citizen | Deokgye | 5 : 0 |
| 33 | Hyochang | Dong Ulsan | 5 : 2 |
| 34 | Bye | Suwon FC | |
| 36 | Bye | Incheon | |
| 37 | Busan | Bye | |
| 39 | Hwaseong | Bye | |
| 40 | Yeoju Citizen | Daejeon Korail | 1 : 3 |
| 41 | Jeonbuk | Bye | |
| 45 | Seoul United | Chungju Citizen | 3 : 4 |
| 46 | Bye | Jeonnam | |
| 47 | Gyeongnam | Bye | |
| 48 | Yangpyeong | Mokpo | 2 : 3 |
| 49 | Goyang Citizen | Jungnang Chorus | 3 : 1 |
| 50 | Bye | Anyang | |
| 52 | Bye | Daegu | |
| 53 | Seongnam | Bye | |
| 55 | Asan | Bye | |
| 56 | Bluebird | Jeonju Citizen | 0 : 2 |
| 57 | Garam | Songwol | 0 : 4 |
| 58 | Bye | Jeju Utd | |
| 59 | Seoul E-Land | Bye | |
| 60 | Pocheon | Changwon | 1 : 3 |
| 64 | Bye | Suwon Bluewings |
1/32-finals
| 1 | Ulsan Hyundai | Bye | |
| 3 | Gimhae | Cheonan City | 4 : 2 |
| 4 | Gyeongju KHNP | SMCE | 4 : 0 |
| 5 | Bye | Gwangju FC | |
| 6 | Paju Citizen | Gimpo FC | 2 : 4 |
| 7 | Gangwon | Bye | |
| 8 | Gangneung | Cheongju | 2 : 1 |
| 9 | Chuncheon | Daejeon | 0 : 3 |
| 10 | Ansan Greeners | Siheung Citizen | 3 : 0 |
| 12 | Bye | Seoul | |
| 13 | Ulsan Citizen | Bucheon FC 1995 | 1 : 0 |
| 14 | Bye | Gimcheon Sangmu | |
| 15 | Pohang | Bye | |
| 16 | Gyeongju Citizen | Pyeongtaek Citizen | 1 : 0 |
| 17 | Hyochang | Suwon FC | 0 : 10 |
| 18 | Bye | Incheon | |
| 19 | Busan | Bye | |
| 20 | Hwaseong | Daejeon Korail | 3 : 2 |
| 21 | Jeonbuk | Bye | |
| 23 | Chungju Citizen | Jeonnam | 0 : 2 |
| 24 | Gyeongnam | Mokpo | 4 : 3 |
| 25 | Goyang Citizen | Anyang | 0 : 2 |
| 26 | Bye | Daegu | |
| 27 | Seongnam | Bye | |
| 28 | Asan | Jeonju Citizen | 1 : 0 |
| 29 | Songwol | Jeju Utd | 0 : 4 |
| 30 | Seoul E-Land | Changwon | 1 : 0 |
| 32 | Bye | Suwon Bluewings |
1/16-finals
| 1 | Ulsan Hyundai | Bye | |
| 2 | Gimhae | Gyeongju KHNP | 0 : 2 |
| 3 | Gwangju FC | Gimpo FC | 3 : 2 |
| 4 | Gangwon | Gangneung | 2 : 1 |
| 5 | Daejeon | Ansan Greeners | 2 : 0 |
| 6 | Bye | Seoul | |
| 7 | Ulsan Citizen | Gimcheon Sangmu | 0 : 2 |
| 8 | Pohang | Gyeongju Citizen | 1 : 0 |
| 9 | Suwon FC | Incheon | 3 : 2 |
| 10 | Busan | Hwaseong | 4 : 0 |
| 11 | Jeonbuk | Bye | |
| 12 | Jeonnam | Gyeongnam | 4 : 0 |
| 13 | Anyang | Daegu | 0 : 2 |
| 14 | Seongnam | Asan | 1 : 0 |
| 15 | Jeju Utd | Seoul E-Land | 3 : 2 |
| 16 | Bye | Suwon Bluewings |
1/8-finals
| 1 | Ulsan Hyundai | Gyeongju KHNP | 2 : 0 |
| 2 | Gwangju FC | Gangwon | 2 : 4 |
| 3 | Daejeon | Seoul | 1 : 2 |
| 4 | Gimcheon Sangmu | Pohang | 2 : 3 |
| 5 | Suwon FC | Busan | 0 : 1 |
| 6 | Jeonbuk | Jeonnam | 3 : 2 |
| 7 | Daegu | Seongnam | 1 : 2 |
| 8 | Jeju Utd | Suwon Bluewings | 0 : 1 |
Quarter-finals
| 1 | Ulsan Hyundai | Gangwon | 3 : 0 |
| 2 | Seoul | Pohang | 1 : 5 |
| 3 | Busan | Jeonbuk | 1 : 5 |
| 4 | Seongnam | Suwon Bluewings | 1 : 0 |
Semi-finals
| 1 | Ulsan Hyundai | Pohang | 2 : 1 |
| 2 | Jeonbuk | Seongnam | 1 : 0 |
Final
| 1 | Ulsan Hyundai | Jeonbuk | 1 : 2, 1 : 1 |
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