2. Round
27/03/2021 05:00 Gyeongju KHNP - Yangju Citizen 3:4 (0:0, 0:0, 0:0) pso
05:00 FC Anyang - Cheonan City FC 5:1 (3:0)
05:00 Bucheon FC 1995 - Gimhae Jaemics 3:1 (2:1)
05:00 Busan IPark - Jeonju Citizen 2:1 (0:0, 1:1) aet
07:00 Chungnam Asan FC - Goyang Citizen FC 3:1 (1:0)
07:00 Seoul E-Land FC - Songwol FC 5:0 (2:0)
07:00 FC Mokpo - Gimpo FC 1:0 (1:0)
07:00 Jeonnam Dragons - Cheongsol FC 11:0 (5:0)
28/03/2021 06:00 Pocheon FC - Gangneung City FC 1:0 (1:0)
06:00 Paju Citizen - Daejeon Hana Citizen 1:4 (0:1, 1:1) aet
06:00 Gimhae FC - Siheung Citizen FC 2:1 (0:0)
06:00 Gimcheon Sangmu - Pyeongtaek Citizen FC 8:0 (3:0)
08:00 Ansan Greeners - Yangpyeong FC 1:0 (0:0)
08:00 Cheongju FC - Hwaseong FC 5:4 (0:0, 1:1, 1:1) pso
08:00 Daejeon Korail - Gyeongnam FC 0:1 (0:1)
08:00 Chuncheon FC - Busan Transportation Corporation 0:3 (0:3)
3. Round
14/04/2021 11:00 Pocheon FC - Yangju Citizen 0:2 (0:0)
11:00 Daejeon Hana Citizen - Suwon Bluewings 1:2 (1:1)
11:00 Incheon United - FC Anyang 0:3 (0:1)
11:00 Gimhae FC - Bucheon FC 1995 4:3 (0:0, 1:1, 1:1) pso
11:00 Gimcheon Sangmu - Jeju United 1:0 (0:0)
11:00 Seongnam FC - Busan IPark 1:0 (1:0)
11:00 Ansan Greeners - Chungnam Asan FC 0:1 (0:0)
11:00 Cheongju FC - Gangwon FC 1:2 (0:0)
11:00 Gyeongnam FC - FC Mokpo 3:1 (0:0, 1:1) aet
11:00 Busan Transportation Corporation - Gwangju FC 5:3 (0:0, 2:2, 2:2) pso
11:00 Suwon FC - Jeonnam Dragons 4:5 (0:1, 1:1, 1:1) pso
11:30 FC Seoul - Seoul E-Land FC 0:1 (0:0)
Round of 16
26/05/2021 11:00 Jeonbuk FC - Yangju Citizen 9:10 (0:0, 0:0, 0:0) pso
11:00 Suwon Bluewings - FC Anyang 4:2 (0:0, 0:0, 0:0) pso
11:00 Daegu FC - Gimhae FC 2:0 (0:0)
11:00 Gimcheon Sangmu - Seongnam FC 3:2 (0:1, 1:1) aet
11:00 Chungnam Asan FC - Pohang Steelers 1:3 (1:1)
11:00 Gangwon FC - Seoul E-Land FC 2:0 (1:0)
11:00 Ulsan Hyundai FC - Gyeongnam FC 3:0 (1:0)
11:00 Busan Transportation Corporation - Jeonnam Dragons 3:5 (0:1, 2:2, 2:2) pso
Quarter-finals
11/08/2021 11:00 Gangwon FC - Suwon Bluewings 2:0 (0:0)
11:00 Daegu FC - Gimcheon Sangmu 2:1 (0:0)
11:00 Ulsan Hyundai FC - Yangju Citizen 2:0 (1:0)
11:00 Jeonnam Dragons - Pohang Steelers 1:0 (0:0)
Semi-finals
27/10/2021 11:00 Gangwon FC - Daegu FC 0:1 (0:0)
11:00 Ulsan Hyundai FC - Jeonnam Dragons 1:2 (0:1)
Final
24/11/2021 11:00 Jeonnam Dragons - Daegu FC 0:1 (0:1)
11/12/2021 03:30 Daegu FC - Jeonnam Dragons 3:4 (1:2)
Cup
Cup