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| 19/04/2017 | 06:00 | Mokpo City FC | - | Yangpyeong FC | 1:0 (0:0) | |
| 07:00 | Jeonbuk FC | - | Bucheon FC 1995 | 2:4 (0:0, 0:0, 0:0) pso | ||
| 07:00 | Gyeongju KHNP | - | Pocheon FC | 0:2 (0:2) | ||
| 11:00 | Jeonnam Dragons | - | Jeonju Citizen | 4:0 (2:0) | ||
| 11:00 | Gangneung City FC | - | Sangju Sangmu | 0:1 (0:1) | ||
| 11:00 | Seongnam FC | - | Cheongju City | 3:1 (1:1) | ||
| 11:00 | Daegu FC | - | Gyeongnam FC | 1:2 (0:0) | ||
| 11:00 | Gangwon FC | - | Daejeon Korail | 1:0 (0:0) | ||
| 11:00 | Gwangju FC | - | Yonsei University | 4:2 (0:0, 2:2) aet | ||
| 11:00 | Ajou University | - | Asan Mugunghwa FC | 1:2 (0:0) | ||
| 11:30 | Gimhae City FC | - | Jeju United | 0:1 (0:1) | ||
| 11:30 | Chuncheon FC | - | Ulsan Hyundai FC | 1:3 (1:0) | ||
| 11:30 | Incheon United | - | Suwon Bluewings | 0:1 (0:0) | ||
| 11:30 | Daejeon Citizen | - | Yeungnam University | 2:0 (0:0) | ||
| 11:30 | Busan IPark | - | Pohang Steelers | 1:0 (0:0, 0:0) aet | ||
| 11:30 | FC Seoul | - | FC Anyang | 2:0 (2:0) |
