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| 29/03/2023 | 08:00 | Yeoju FC | - | Gimpo FC | 2:4 (0:1, 2:2) aet | |
| 11:00 | Hwaseong FC | - | Ansan Greeners | 2:3 (0:1) | ||
| 11:00 | Chungnam Asan FC | - | Jeonju Citizen | 2:0 (1:0) | ||
| 11:00 | Jeonnam Dragons | - | FC Mokpo | 1:0 (1:0) | ||
| 11:00 | Seongnam FC | - | Pyeongchang United | 1:0 (1:0) | ||
| 11:00 | Chungbuk Cheongju FC | - | Seoul Jungnang FC | 3:0 (1:0) | ||
| 11:00 | Seoul E-Land FC | - | Bucheon FC 1995 | 6:0 (4:0) | ||
| 11:00 | FC Anyang | - | Busan IPark | 1:4 (1:3) | ||
| 30/03/2023 | 10:00 | Changwon City FC | - | Pyeongtaek Citizen FC | 2:1 (1:0) | |
| 11:00 | Gangneung City FC | - | Gyeongnam FC | 1:2 (1:0) | ||
| 11:00 | Jinju Citizen | - | Siheung Citizen FC | 1:2 (0:0) | ||
| 11:00 | Cheonan City FC | - | Yangju Citizen | 3:2 (0:0) | ||
| 11:00 | Gyeongju KHNP | - | Geoje Citizen | 4:5 (0:0, 1:1, 1:1) pso | ||
| 11:00 | Daejeon Korail | - | Gimcheon Sangmu | 1:2 (0:0) | ||
| 11:00 | Chuncheon FC | - | Paju Citizen | 1:2 (1:1) | ||
| 11:00 | Busan Transportation Corporation | - | Dangjin Citizen FC | 0:2 (0:2) |
