20 aprilie 2021
Mar, 20.04
13:00
Gangwon FC
Gangwon FC
0
Gwangju FC
Gwangju FC
1
Mar, 20.04
13:30
Pohang Steelers
Pohang Steelers
1
Suwon City
Suwon City
0
21 aprilie 2021
Mie, 21.04
13:00
Ulsan Hyundai
Ulsan Hyundai
0
Jeonbuk FC
Jeonbuk FC
0
Mie, 21.04
13:30
Daegu FC
Daegu FC
1
Suwon Bluewings
Suwon Bluewings
0
Mie, 21.04
13:30
Jeju United
Jeju United
2
FC Seoul
FC Seoul
1
Mie, 21.04
13:30
Seongnam FC
Seongnam FC
1
Incheon United
Incheon United
3
Etapa anterioară Etapa următoare