| 09 May 20 | r01        | Jeju United FCJeju United F | 1 - 1 | Seoul E-LandSeoul E-Land |
| 09 May 20 | r01        | Suwon FCSuwon FC | 1 - 2 | Daejeon Hana CitizenDaejeon Hana |
| 10 May 20 | r01        | Chungnam AsanChungnam Asan | 0 - 1 | Bucheon FC 1995Bucheon FC 19 |
| 10 May 20 | r01        | AnyangAnyang | 0 - 1 | Ansan GreenersAnsan Greener |
| 10 May 20 | r01        | Gyeongnam FCGyeongnam FC | 0 - 0 | Jeonnam DragonsJeonnam Drago |
| |
| 16 May 20 | r02        | Ansan GreenersAnsan Greener | 0 - 2 | Suwon FCSuwon FC |
| 16 May 20 | r02        | Jeonnam DragonsJeonnam Drago | 1 - 0 | Jeju United FCJeju United F |
| 16 May 20 | r02        | Bucheon FC 1995Bucheon FC 19 | 2 - 1 | AnyangAnyang |
| 17 May 20 | r02        | Seoul E-LandSeoul E-Land | 2 - 2 | Gyeongnam FCGyeongnam FC |
| 17 May 20 | r02        | Daejeon Hana CitizenDaejeon Hana | 2 - 2 | Chungnam AsanChungnam Asan |
| |
| 23 May 20 | r03        | Jeju United FCJeju United F | 2 - 3 | Daejeon Hana CitizenDaejeon Hana |
| 23 May 20 | r03        | Ansan GreenersAnsan Greener | 0 - 2 | Bucheon FC 1995Bucheon FC 19 |
| 24 May 20 | r03        | AnyangAnyang | 2 - 3 | Gyeongnam FCGyeongnam FC |
| 24 May 20 | r03        | Chungnam AsanChungnam Asan | 0 - 5 | Suwon FCSuwon FC |
| 24 May 20 | r03        | Seoul E-LandSeoul E-Land | 0 - 0 | Jeonnam DragonsJeonnam Drago |
| |
| 26 May 20 | r04        | Daejeon Hana CitizenDaejeon Hana | 1 - 0 | Ansan GreenersAnsan Greener |
| 26 May 20 | r04        | Bucheon FC 1995Bucheon FC 19 | 0 - 1 | Jeju United FCJeju United F |
| 27 May 20 | r04        | Seoul E-LandSeoul E-Land | 0 - 2 | AnyangAnyang |
| 27 May 20 | r04        | Jeonnam DragonsJeonnam Drago | 1 - 1 | Chungnam AsanChungnam Asan |
| 27 May 20 | r04        | Suwon FCSuwon FC | 3 - 1 | Gyeongnam FCGyeongnam FC |
| |
| 30 May 20 | r05        | Jeonnam DragonsJeonnam Drago | 1 - 1 | AnyangAnyang |
| 30 May 20 | r05        | Gyeongnam FCGyeongnam FC | 2 - 2 | Daejeon Hana CitizenDaejeon Hana |
| 31 May 20 | r05        | Ansan GreenersAnsan Greener | 1 - 2 | Jeju United FCJeju United F |
| 31 May 20 | r05        | Chungnam AsanChungnam Asan | 0 - 1 | Seoul E-LandSeoul E-Land |
| 31 May 20 | r05        | Suwon FCSuwon FC | 1 - 2 | Bucheon FC 1995Bucheon FC 19 |
| |
| 13 Jun 20 | r06        | Jeju United FCJeju United F | 1 - 0 | Suwon FCSuwon FC |
| 13 Jun 20 | r06        | Seoul E-LandSeoul E-Land | 2 - 0 | Daejeon Hana CitizenDaejeon Hana |
| 14 Jun 20 | r06        | Bucheon FC 1995Bucheon FC 19 | 0 - 1 | Jeonnam DragonsJeonnam Drago |
| 14 Jun 20 | r06        | AnyangAnyang | 1 - 1 | Chungnam AsanChungnam Asan |
| 15 Jun 20 | r06        | Gyeongnam FCGyeongnam FC | 2 - 1 | Ansan GreenersAnsan Greener |
| |
| 20 Jun 20 | r07        | Chungnam AsanChungnam Asan | 0 - 2 | Jeju United FCJeju United F |
| 20 Jun 20 | r07        | Daejeon Hana CitizenDaejeon Hana | 2 - 0 | Jeonnam DragonsJeonnam Drago |
| 21 Jun 20 | r07        | Gyeongnam FCGyeongnam FC | 1 - 1 | Bucheon FC 1995Bucheon FC 19 |
| 21 Jun 20 | r07        | Suwon FCSuwon FC | 3 - 2 | AnyangAnyang |
| 22 Jun 20 | r07        | Seoul E-LandSeoul E-Land | 0 - 2 | Ansan GreenersAnsan Greener |
| |
| 27 Jun 20 | r08        | Daejeon Hana CitizenDaejeon Hana | 3 - 3 | Ansan GreenersAnsan Greener |
| 27 Jun 20 | r08        | Ansan GreenersAnsan Greener | 1 - 1 | Chungnam AsanChungnam Asan |
| 27 Jun 20 | r08        | Daejeon Hana CitizenDaejeon Hana | 3 - 3 | AnyangAnyang |
| 28 Jun 20 | r08        | Jeju United FCJeju United F | 1 - 1 | Gyeongnam FCGyeongnam FC |
| 28 Jun 20 | r08        | Jeonnam DragonsJeonnam Drago | 1 - 2 | Suwon FCSuwon FC |
| 28 Jun 20 | r08        | Bucheon FC 1995Bucheon FC 19 | 2 - 3 | Seoul E-LandSeoul E-Land |
| |
| 04 Jul 20 | r09        | Jeonnam DragonsJeonnam Drago | 4 - 0 | Ansan GreenersAnsan Greener |
| 04 Jul 20 | r09        | Seoul E-LandSeoul E-Land | 0 - 3 | Suwon FCSuwon FC |
| 05 Jul 20 | r09        | AnyangAnyang | 1 - 2 | Jeju United FCJeju United F |
| 05 Jul 20 | r09        | Chungnam AsanChungnam Asan | 2 - 1 | Gyeongnam FCGyeongnam FC |
| 06 Jul 20 | r09        | Bucheon FC 1995Bucheon FC 19 | 1 - 0 | Daejeon Hana CitizenDaejeon Hana |
| |
| 11 Jul 20 | r10        | Gyeongnam FCGyeongnam FC | 1 - 2 | Seoul E-LandSeoul E-Land |
| 11 Jul 20 | r10        | Suwon FCSuwon FC | 1 - 1 | Chungnam AsanChungnam Asan |
| 12 Jul 20 | r10        | AnyangAnyang | 0 - 0 | Jeonnam DragonsJeonnam Drago |
| 12 Jul 20 | r10        | Ansan GreenersAnsan Greener | 0 - 2 | Daejeon Hana CitizenDaejeon Hana |
| |
| 18 Jul 20 | r11        | Jeonnam DragonsJeonnam Drago | 2 - 0 | Bucheon FC 1995Bucheon FC 19 |
| 18 Jul 20 | r11        | Seoul E-LandSeoul E-Land | 1 - 2 | Jeju United FCJeju United F |
| 19 Jul 20 | r11        | Chungnam AsanChungnam Asan | 0 - 2 | AnyangAnyang |
| 19 Jul 20 | r11        | Daejeon Hana CitizenDaejeon Hana | 1 - 4 | Suwon FCSuwon FC |
| 20 Jul 20 | r11        | Ansan GreenersAnsan Greener | 0 - 0 | Gyeongnam FCGyeongnam FC |
| |
| 25 Jul 20 | r12        | AnyangAnyang | 0 - 2 | Suwon FCSuwon FC |
| 25 Jul 20 | r12        | Seoul E-LandSeoul E-Land | 1 - 2 | Chungnam AsanChungnam Asan |
| 25 Jul 20 | r12        | Bucheon FC 1995Bucheon FC 19 | 0 - 0 | Ansan GreenersAnsan Greener |
| 26 Jul 20 | r12        | Jeonnam DragonsJeonnam Drago | 1 - 1 | Gyeongnam FCGyeongnam FC |
| 26 Jul 20 | r12        | Daejeon Hana CitizenDaejeon Hana | 2 - 1 | Jeju United FCJeju United F |
| |
| 01 Aug 20 | r13        | Jeju United FCJeju United F | 1 - 1 | Jeonnam DragonsJeonnam Drago |
| 01 Aug 20 | r13        | Chungnam AsanChungnam Asan | 1 - 2 | Daejeon Hana CitizenDaejeon Hana |
| 01 Aug 20 | r13        | Suwon FCSuwon FC | 1 - 2 | Ansan GreenersAnsan Greener |
| 02 Aug 20 | r13        | Gyeongnam FCGyeongnam FC | 1 - 0 | AnyangAnyang |
| 02 Aug 20 | r13        | Seoul E-LandSeoul E-Land | 3 - 0 | Bucheon FC 1995Bucheon FC 19 |
| |
| 08 Aug 20 | r14        | Ansan GreenersAnsan Greener | 0 - 1 | AnyangAnyang |
| 08 Aug 20 | r14        | Daejeon Hana CitizenDaejeon Hana | 2 - 3 | Gyeongnam FCGyeongnam FC |
| 09 Aug 20 | r14        | Jeonnam DragonsJeonnam Drago | 1 - 2 | Seoul E-LandSeoul E-Land |
| 09 Aug 20 | r14        | Bucheon FC 1995Bucheon FC 19 | 2 - 0 | Suwon FCSuwon FC |
| 10 Aug 20 | r14        | Jeju United FCJeju United F | 2 - 1 | Chungnam AsanChungnam Asan |
| |
| 15 Aug 20 | r15        | Ansan GreenersAnsan Greener | 0 - 0 | Jeonnam DragonsJeonnam Drago |
| 15 Aug 20 | r15        | AnyangAnyang | 2 - 1 | Bucheon FC 1995Bucheon FC 19 |
| 16 Aug 20 | r15        | Gyeongnam FCGyeongnam FC | 2 - 0 | Chungnam AsanChungnam Asan |
| 16 Aug 20 | r15        | Suwon FCSuwon FC | 1 - 1 | Jeju United FCJeju United F |
| 17 Aug 20 | r15        | Daejeon Hana CitizenDaejeon Hana | 0 - 0 | Seoul E-LandSeoul E-Land |
| |
| 22 Aug 20 | r16        | Bucheon FC 1995Bucheon FC 19 | 0 - 1 | Gyeongnam FCGyeongnam FC |
| 22 Aug 20 | r16        | Chungnam AsanChungnam Asan | 0 - 2 | Jeonnam DragonsJeonnam Drago |
| 23 Aug 20 | r16        | Suwon FCSuwon FC | 2 - 0 | Seoul E-LandSeoul E-Land |
| 23 Aug 20 | r16        | Jeju United FCJeju United F | 3 - 1 | Ansan GreenersAnsan Greener |
| 24 Aug 20 | r16        | AnyangAnyang | 0 - 0 | Daejeon Hana CitizenDaejeon Hana |
| |
| 26 Aug 20 | r10        | Jeju United FCJeju United F | 4 - 0 | Bucheon FC 1995Bucheon FC 19 |
| |
| 29 Aug 20 | r17        | Gyeongnam FCGyeongnam FC | 2 - 3 | Suwon FCSuwon FC |
| 29 Aug 20 | r17        | Jeju United FCJeju United F | 3 - 1 | AnyangAnyang |
| 30 Aug 20 | r17        | Jeonnam DragonsJeonnam Drago | 1 - 1 | Daejeon Hana CitizenDaejeon Hana |
| 30 Aug 20 | r17        | Bucheon FC 1995Bucheon FC 19 | 0 - 2 | Chungnam AsanChungnam Asan |
| 30 Aug 20 | r17        | Ansan GreenersAnsan Greener | 0 - 1 | Seoul E-LandSeoul E-Land |
| |
| 05 Sep 20 | r18        | Gyeongnam FCGyeongnam FC | 3 - 3 | Jeju United FCJeju United F |
| 05 Sep 20 | r18        | Chungnam AsanChungnam Asan | 1 - 1 | Ansan GreenersAnsan Greener |
| 06 Sep 20 | r18        | AnyangAnyang | 2 - 1 | Seoul E-LandSeoul E-Land |
| 06 Sep 20 | r18        | Suwon FCSuwon FC | 2 - 2 | Jeonnam DragonsJeonnam Drago |
| 06 Sep 20 | r18        | Daejeon Hana CitizenDaejeon Hana | 1 - 0 | Bucheon FC 1995Bucheon FC 19 |
| |
| 12 Sep 20 | r19        | Seoul E-LandSeoul E-Land | 0 - 1 | Chungnam AsanChungnam Asan |
| 12 Sep 20 | r19        | Jeonnam DragonsJeonnam Drago | 2 - 2 | Gyeongnam FCGyeongnam FC |
| 13 Sep 20 | r19        | Jeju United FCJeju United F | 2 - 0 | Daejeon Hana CitizenDaejeon Hana |
| 13 Sep 20 | r19        | Ansan GreenersAnsan Greener | 1 - 0 | AnyangAnyang |
| 14 Sep 20 | r19        | Suwon FCSuwon FC | 1 - 0 | Bucheon FC 1995Bucheon FC 19 |
| |
| 19 Sep 20 | r20        | Bucheon FC 1995Bucheon FC 19 | 0 - 2 | Jeju United FCJeju United F |
| 19 Sep 20 | r20        | Daejeon Hana CitizenDaejeon Hana | 1 - 2 | Seoul E-LandSeoul E-Land |
| 19 Sep 20 | r20        | AnyangAnyang | 1 - 2 | Jeonnam DragonsJeonnam Drago |
| 19 Sep 20 | r20        | Gyeongnam FCGyeongnam FC | 1 - 2 | Ansan GreenersAnsan Greener |
| 21 Sep 20 | r20        | Chungnam AsanChungnam Asan | 0 - 2 | Suwon FCSuwon FC |
| |
| 26 Sep 20 | r21        | AnyangAnyang | 0 - 0 | Bucheon FC 1995Bucheon FC 19 |
| 26 Sep 20 | r21        | Suwon FCSuwon FC | 1 - 0 | Seoul E-LandSeoul E-Land |
| 27 Sep 20 | r21        | Ansan GreenersAnsan Greener | 1 - 2 | Daejeon Hana CitizenDaejeon Hana |
| 27 Sep 20 | r21        | Gyeongnam FCGyeongnam FC | 3 - 1 | Chungnam AsanChungnam Asan |
| 28 Sep 20 | r21        | Jeonnam DragonsJeonnam Drago | 0 - 2 | Jeju United FCJeju United F |
| |
| 03 Oct 20 | r22        | Jeju United FCJeju United F | 4 - 1 | AnyangAnyang |
| 03 Oct 20 | r22        | Bucheon FC 1995Bucheon FC 19 | 1 - 1 | Jeonnam DragonsJeonnam Drago |
| 03 Oct 20 | r22        | Ansan GreenersAnsan Greener | 0 - 4 | Suwon FCSuwon FC |
| 03 Oct 20 | r22        | Seoul E-LandSeoul E-Land | 1 - 0 | Gyeongnam FCGyeongnam FC |
| 04 Oct 20 | r22        | Chungnam AsanChungnam Asan | 3 - 2 | Daejeon Hana CitizenDaejeon Hana |
| |
| 10 Oct 20 | r23        | Gyeongnam FCGyeongnam FC | 1 - 0 | AnyangAnyang |
| 10 Oct 20 | r23        | Daejeon Hana CitizenDaejeon Hana | 0 - 1 | Suwon FCSuwon FC |
| 11 Oct 20 | r23        | Jeju United FCJeju United F | 1 - 1 | Ansan GreenersAnsan Greener |
| 11 Oct 20 | r23        | Seoul E-LandSeoul E-Land | 3 - 0 | Bucheon FC 1995Bucheon FC 19 |
| 11 Oct 20 | r23        | Jeonnam DragonsJeonnam Drago | 1 - 0 | Chungnam AsanChungnam Asan |
| |
| 17 Oct 20 | r24        | AnyangAnyang | 1 - 1 | Seoul E-LandSeoul E-Land |
| 17 Oct 20 | r24        | Daejeon Hana CitizenDaejeon Hana | 0 - 1 | Bucheon FC 1995Bucheon FC 19 |
| 17 Oct 20 | r24        | Gyeongnam FCGyeongnam FC | 0 - 1 | Jeju United FCJeju United F |
| 18 Oct 20 | r24        | Suwon FCSuwon FC | 3 - 4 | Jeonnam DragonsJeonnam Drago |
| 18 Oct 20 | r24        | Chungnam AsanChungnam Asan | 0 - 1 | Ansan GreenersAnsan Greener |
| |
| 24 Oct 20 | r25        | Jeonnam DragonsJeonnam Drago | 1 - 2 | Daejeon Hana CitizenDaejeon Hana |
| 24 Oct 20 | r25        | Jeju United FCJeju United F | 2 - 0 | Suwon FCSuwon FC |
| 24 Oct 20 | r25        | Chungnam AsanChungnam Asan | 0 - 2 | AnyangAnyang |
| 25 Oct 20 | r25        | Bucheon FC 1995Bucheon FC 19 | 3 - 4 | Gyeongnam FCGyeongnam FC |
| 25 Oct 20 | r25        | Ansan GreenersAnsan Greener | 0 - 3 | Seoul E-LandSeoul E-Land |
| |
| 31 Oct 20 | r26        | Suwon FCSuwon FC | 2 - 1 | Gyeongnam FCGyeongnam FC |
| 31 Oct 20 | r26        | Bucheon FC 1995Bucheon FC 19 | 0 - 0 | Chungnam AsanChungnam Asan |
| 01 Nov 20 | r26        | Jeju United FCJeju United F | 3 - 2 | Seoul E-LandSeoul E-Land |
| 01 Nov 20 | r26        | Jeonnam DragonsJeonnam Drago | 0 - 0 | Ansan GreenersAnsan Greener |
| |
| 07 Nov 20 | r27        | AnyangAnyang | 1 - 2 | Suwon FCSuwon FC |
| 07 Nov 20 | r27        | Ansan GreenersAnsan Greener | 2 - 0 | Bucheon FC 1995Bucheon FC 19 |
| 07 Nov 20 | r27        | Chungnam AsanChungnam Asan | 0 - 1 | Jeju United FCJeju United F |
| |
| 17 Nov 20 | r26        | Daejeon Hana CitizenDaejeon Hana | 3 - 0 | AnyangAnyang |
| |
| 21 Nov 20 | r27        | Gyeongnam FCGyeongnam FC | 1 - 0 | Daejeon Hana CitizenDaejeon Hana |
| 21 Nov 20 | r27        | Seoul E-LandSeoul E-Land | 1 - 1 | Jeonnam DragonsJeonnam Drago |
| |
| 25 Nov 20 | r00        | Gyeongnam FCGyeongnam FC | 1 - 1 | Daejeon Hana CitizenDaejeon Hana |
| 29 Nov 20 | r00        | Suwon FCSuwon FC | 1 - 1 | Gyeongnam FCGyeongnam FC |