| 25 Feb 23 | r01    | Ulsan Hyundai FCUlsan Hyundai | 2 - 1 | Jeonbuk Hyundai MotorsJeonbuk Hyund |
| 25 Feb 23 | r01 | FC SeoulFC Seoul | 2 - 1 | Incheon United FCIncheon Unite |
| 25 Feb 23 | r01 | Suwon Samsung BluewingsSuwon Samsung | 0 - 1 | Gwangju FCGwangju FC |
| 26 Feb 23 | r01 | Pohang SteelersPohang Steele | 3 - 2 | Daegu FCDaegu FC |
| 26 Feb 23 | r01 | Jeju United FCJeju United F | 0 - 0 | Suwon FCSuwon FC |
| 26 Feb 23 | r01 | Daejeon Hana CitizenDaejeon Hana | 2 - 0 | Gangwon FCGangwon FC |
| |
| 04 Mar 23 | r02 | Incheon United FCIncheon Unite | 3 - 3 | Daejeon Hana CitizenDaejeon Hana |
| 04 Mar 23 | r02 | Suwon FCSuwon FC | 1 - 2 | Pohang SteelersPohang Steele |
| 04 Mar 23 | r02 | Daegu FCDaegu FC | 1 - 1 | Jeju United FCJeju United F |
| 05 Mar 23 | r02 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 1 - 1 | Suwon Samsung BluewingsSuwon Samsung |
| 05 Mar 23 | r02 | Gangwon FCGangwon FC | 0 - 1 | Ulsan Hyundai FCUlsan Hyundai |
| 05 Mar 23 | r02 | Gwangju FCGwangju FC | 0 - 2 | FC SeoulFC Seoul |
| |
| 11 Mar 23 | r03 | Suwon FCSuwon FC | 2 - 1 | Suwon Samsung BluewingsSuwon Samsung |
| 11 Mar 23 | r03 | Daejeon Hana CitizenDaejeon Hana | 0 - 0 | Pohang SteelersPohang Steele |
| 11 Mar 23 | r03 | Gangwon FCGangwon FC | 1 - 1 | Daegu FCDaegu FC |
| 12 Mar 23 | r03 | FC SeoulFC Seoul | 1 - 2 | Ulsan Hyundai FCUlsan Hyundai |
| 12 Mar 23 | r03 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 2 - 0 | Gwangju FCGwangju FC |
| 12 Mar 23 | r03 | Incheon United FCIncheon Unite | 1 - 0 | Jeju United FCJeju United F |
| |
| 18 Mar 23 | r04 | Pohang SteelersPohang Steele | 1 - 1 | Gangwon FCGangwon FC |
| 18 Mar 23 | r04 | Gwangju FCGwangju FC | 5 - 0 | Incheon United FCIncheon Unite |
| 18 Mar 23 | r04 | Jeju United FCJeju United F | 1 - 2 | FC SeoulFC Seoul |
| 19 Mar 23 | r04 | Daegu FCDaegu FC | 2 - 0 | Jeonbuk Hyundai MotorsJeonbuk Hyund |
| 19 Mar 23 | r04 | Suwon Samsung BluewingsSuwon Samsung | 1 - 3 | Daejeon Hana CitizenDaejeon Hana |
| 19 Mar 23 | r04 | Ulsan Hyundai FCUlsan Hyundai | 3 - 0 | Suwon FCSuwon FC |
| |
| 01 Apr 23 | r05 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 1 - 2 | Pohang SteelersPohang Steele |
| 01 Apr 23 | r05 | Incheon United FCIncheon Unite | 0 - 0 | Daegu FCDaegu FC |
| 01 Apr 23 | r05 | Gwangju FCGwangju FC | 2 - 0 | Suwon FCSuwon FC |
| 01 Apr 23 | r05 | Daejeon Hana CitizenDaejeon Hana | 3 - 2 | FC SeoulFC Seoul |
| 02 Apr 23 | r05 | Jeju United FCJeju United F | 1 - 3 | Ulsan Hyundai FCUlsan Hyundai |
| 02 Apr 23 | r05 | Suwon Samsung BluewingsSuwon Samsung | 1 - 1 | Gangwon FCGangwon FC |
| |
| 08 Apr 23 | r06 | Ulsan Hyundai FCUlsan Hyundai | 2 - 1 | Suwon Samsung BluewingsSuwon Samsung |
| 08 Apr 23 | r06 | FC SeoulFC Seoul | 3 - 0 | Daegu FCDaegu FC |
| 08 Apr 23 | r06 | Pohang SteelersPohang Steele | 2 - 0 | Gwangju FCGwangju FC |
| 09 Apr 23 | r06 | Suwon FCSuwon FC | 5 - 3 | Daejeon Hana CitizenDaejeon Hana |
| 09 Apr 23 | r06 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 2 - 0 | Incheon United FCIncheon Unite |
| 09 Apr 23 | r06 | Gangwon FCGangwon FC | 0 - 1 | Jeju United FCJeju United F |
| |
| 15 Apr 23 | r07 | Suwon Samsung BluewingsSuwon Samsung | 2 - 3 | Jeju United FCJeju United F |
| 15 Apr 23 | r07 | Pohang SteelersPohang Steele | 1 - 1 | FC SeoulFC Seoul |
| 15 Apr 23 | r07 | Suwon FCSuwon FC | 1 - 0 | Jeonbuk Hyundai MotorsJeonbuk Hyund |
| 16 Apr 23 | r07 | Gangwon FCGangwon FC | 0 - 2 | Incheon United FCIncheon Unite |
| 16 Apr 23 | r07 | Daejeon Hana CitizenDaejeon Hana | 2 - 1 | Ulsan Hyundai FCUlsan Hyundai |
| 16 Apr 23 | r07 | Daegu FCDaegu FC | 3 - 4 | Gwangju FCGwangju FC |
| |
| 22 Apr 23 | r08 | FC SeoulFC Seoul | 3 - 1 | Suwon Samsung BluewingsSuwon Samsung |
| 22 Apr 23 | r08 | Daegu FCDaegu FC | 1 - 0 | Daejeon Hana CitizenDaejeon Hana |
| 22 Apr 23 | r08 | Ulsan Hyundai FCUlsan Hyundai | 2 - 2 | Pohang SteelersPohang Steele |
| 22 Apr 23 | r08 | Incheon United FCIncheon Unite | 2 - 2 | Suwon FCSuwon FC |
| 23 Apr 23 | r08 | Gwangju FCGwangju FC | 0 - 0 | Gangwon FCGangwon FC |
| 23 Apr 23 | r08 | Jeju United FCJeju United F | 0 - 2 | Jeonbuk Hyundai MotorsJeonbuk Hyund |
| |
| 25 Apr 23 | r09 | Pohang SteelersPohang Steele | 1 - 0 | Suwon Samsung BluewingsSuwon Samsung |
| 25 Apr 23 | r09 | Incheon United FCIncheon Unite | 0 - 1 | Ulsan Hyundai FCUlsan Hyundai |
| 26 Apr 23 | r09 | Gwangju FCGwangju FC | 0 - 1 | Jeju United FCJeju United F |
| 26 Apr 23 | r09 | Gangwon FCGangwon FC | 3 - 2 | FC SeoulFC Seoul |
| 26 Apr 23 | r09 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 1 - 2 | Daejeon Hana CitizenDaejeon Hana |
| 26 Apr 23 | r09 | Suwon FCSuwon FC | 1 - 1 | Daegu FCDaegu FC |
| |
| 29 Apr 23 | r10 | Suwon FCSuwon FC | 0 - 3 | FC SeoulFC Seoul |
| 29 Apr 23 | r10 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 0 - 1 | Gangwon FCGangwon FC |
| 30 Apr 23 | r10 | Daejeon Hana CitizenDaejeon Hana | 0 - 3 | Jeju United FCJeju United F |
| 30 Apr 23 | r10 | Pohang SteelersPohang Steele | 0 - 2 | Incheon United FCIncheon Unite |
| 30 Apr 23 | r10 | Suwon Samsung BluewingsSuwon Samsung | 0 - 1 | Daegu FCDaegu FC |
| 30 Apr 23 | r10 | Ulsan Hyundai FCUlsan Hyundai | 2 - 1 | Gwangju FCGwangju FC |
| |
| 05 May 23 | r11 | FC SeoulFC Seoul | 1 - 1 | Jeonbuk Hyundai MotorsJeonbuk Hyund |
| 05 May 23 | r11 | Daegu FCDaegu FC | 0 - 3 | Ulsan Hyundai FCUlsan Hyundai |
| 05 May 23 | r11 | Incheon United FCIncheon Unite | 0 - 1 | Suwon Samsung BluewingsSuwon Samsung |
| 06 May 23 | r11 | Jeju United FCJeju United F | 2 - 1 | Pohang SteelersPohang Steele |
| 06 May 23 | r11 | Suwon FCSuwon FC | 2 - 0 | Gangwon FCGangwon FC |
| 06 May 23 | r11 | Gwangju FCGwangju FC | 0 - 0 | Daejeon Hana CitizenDaejeon Hana |
| |
| 09 May 23 | r12 | Ulsan Hyundai FCUlsan Hyundai | 1 - 0 | Gangwon FCGangwon FC |
| 09 May 23 | r12 | Daegu FCDaegu FC | 1 - 1 | Pohang SteelersPohang Steele |
| 09 May 23 | r12 | FC SeoulFC Seoul | 3 - 1 | Gwangju FCGwangju FC |
| 10 May 23 | r12 | Jeju United FCJeju United F | 2 - 0 | Incheon United FCIncheon Unite |
| 10 May 23 | r12 | Suwon Samsung BluewingsSuwon Samsung | 0 - 3 | Jeonbuk Hyundai MotorsJeonbuk Hyund |
| 10 May 23 | r12 | Daejeon Hana CitizenDaejeon Hana | 2 - 1 | Suwon FCSuwon FC |
| |
| 13 May 23 | r13 | Pohang SteelersPohang Steele | 3 - 2 | Daejeon Hana CitizenDaejeon Hana |
| 13 May 23 | r13 | Gwangju FCGwangju FC | 0 - 2 | Daegu FCDaegu FC |
| 13 May 23 | r13 | Gangwon FCGangwon FC | 0 - 2 | Suwon Samsung BluewingsSuwon Samsung |
| 14 May 23 | r13 | Ulsan Hyundai FCUlsan Hyundai | 3 - 2 | FC SeoulFC Seoul |
| 14 May 23 | r13 | Incheon United FCIncheon Unite | 0 - 0 | Jeonbuk Hyundai MotorsJeonbuk Hyund |
| 14 May 23 | r13 | Suwon FCSuwon FC | 0 - 5 | Jeju United FCJeju United F |
| |
| 20 May 23 | r14 | Incheon United FCIncheon Unite | 1 - 1 | Gwangju FCGwangju FC |
| 20 May 23 | r14 | FC SeoulFC Seoul | 1 - 1 | Jeju United FCJeju United F |
| 20 May 23 | r14 | Daejeon Hana CitizenDaejeon Hana | 0 - 1 | Daegu FCDaegu FC |
| 21 May 23 | r14 | Gangwon FCGangwon FC | 0 - 0 | Pohang SteelersPohang Steele |
| 21 May 23 | r14 | Suwon Samsung BluewingsSuwon Samsung | 2 - 3 | Ulsan Hyundai FCUlsan Hyundai |
| 21 May 23 | r14 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 3 - 1 | Suwon FCSuwon FC |
| |
| 27 May 23 | r15 | Jeju United FCJeju United F | 2 - 1 | Suwon Samsung BluewingsSuwon Samsung |
| 27 May 23 | r15 | Daegu FCDaegu FC | 2 - 2 | Incheon United FCIncheon Unite |
| 28 May 23 | r15 | FC SeoulFC Seoul | 1 - 0 | Gangwon FCGangwon FC |
| 28 May 23 | r15 | Suwon FCSuwon FC | 0 - 2 | Gwangju FCGwangju FC |
| 28 May 23 | r15 | Ulsan Hyundai FCUlsan Hyundai | 3 - 3 | Daejeon Hana CitizenDaejeon Hana |
| 29 May 23 | r15 | Pohang SteelersPohang Steele | 1 - 0 | Jeonbuk Hyundai MotorsJeonbuk Hyund |
| |
| 03 Jun 23 | r16 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 2 - 0 | Ulsan Hyundai FCUlsan Hyundai |
| 03 Jun 23 | r16 | Suwon Samsung BluewingsSuwon Samsung | 1 - 2 | Suwon FCSuwon FC |
| 03 Jun 23 | r16 | Jeju United FCJeju United F | 2 - 2 | Gangwon FCGangwon FC |
| 03 Jun 23 | r16 | Gwangju FCGwangju FC | 4 - 2 | Pohang SteelersPohang Steele |
| 04 Jun 23 | r16 | Daejeon Hana CitizenDaejeon Hana | 1 - 3 | Incheon United FCIncheon Unite |
| 04 Jun 23 | r16 | Daegu FCDaegu FC | 1 - 0 | FC SeoulFC Seoul |
| |
| 06 Jun 23 | r17 | Suwon FCSuwon FC | 1 - 3 | Ulsan Hyundai FCUlsan Hyundai |
| 06 Jun 23 | r17 | Pohang SteelersPohang Steele | 2 - 1 | Jeju United FCJeju United F |
| 07 Jun 23 | r17 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 1 - 0 | Daegu FCDaegu FC |
| 07 Jun 23 | r17 | Gwangju FCGwangju FC | 2 - 1 | Suwon Samsung BluewingsSuwon Samsung |
| 07 Jun 23 | r17 | Incheon United FCIncheon Unite | 1 - 1 | FC SeoulFC Seoul |
| 07 Jun 23 | r17 | Gangwon FCGangwon FC | 1 - 2 | Daejeon Hana CitizenDaejeon Hana |
| |
| 10 Jun 23 | r18 | Daegu FCDaegu FC | 3 - 1 | Suwon FCSuwon FC |
| 10 Jun 23 | r18 | Ulsan Hyundai FCUlsan Hyundai | 5 - 1 | Jeju United FCJeju United F |
| 10 Jun 23 | r18 | Daejeon Hana CitizenDaejeon Hana | 1 - 1 | Gwangju FCGwangju FC |
| 11 Jun 23 | r18 | Gangwon FCGangwon FC | 1 - 2 | Jeonbuk Hyundai MotorsJeonbuk Hyund |
| 11 Jun 23 | r18 | FC SeoulFC Seoul | 1 - 1 | Pohang SteelersPohang Steele |
| 11 Jun 23 | r18 | Suwon Samsung BluewingsSuwon Samsung | 0 - 0 | Incheon United FCIncheon Unite |
| |
| 24 Jun 23 | r19 | Suwon Samsung BluewingsSuwon Samsung | 0 - 1 | FC SeoulFC Seoul |
| 24 Jun 23 | r19 | Jeju United FCJeju United F | 1 - 1 | Daejeon Hana CitizenDaejeon Hana |
| 24 Jun 23 | r19 | Gwangju FCGwangju FC | 2 - 0 | Jeonbuk Hyundai MotorsJeonbuk Hyund |
| 24 Jun 23 | r19 | Ulsan Hyundai FCUlsan Hyundai | 3 - 1 | Daegu FCDaegu FC |
| 25 Jun 23 | r19 | Incheon United FCIncheon Unite | 0 - 1 | Pohang SteelersPohang Steele |
| 25 Jun 23 | r19 | Suwon FCSuwon FC | 1 - 1 | Gangwon FCGangwon FC |
| |
| 01 Jul 23 | r20 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 2 - 0 | Jeju United FCJeju United F |
| 01 Jul 23 | r20 | Daegu FCDaegu FC | 1 - 1 | Suwon Samsung BluewingsSuwon Samsung |
| 01 Jul 23 | r20 | FC SeoulFC Seoul | 0 - 0 | Daejeon Hana CitizenDaejeon Hana |
| 02 Jul 23 | r20 | Gwangju FCGwangju FC | 0 - 1 | Ulsan Hyundai FCUlsan Hyundai |
| 02 Jul 23 | r20 | Pohang SteelersPohang Steele | 3 - 1 | Suwon FCSuwon FC |
| 02 Jul 23 | r20 | Incheon United FCIncheon Unite | 1 - 0 | Gangwon FCGangwon FC |
| |
| 07 Jul 23 | r21 | Jeju United FCJeju United F | 1 - 2 | Daegu FCDaegu FC |
| 07 Jul 23 | r21 | Gangwon FCGangwon FC | 1 - 1 | Gwangju FCGwangju FC |
| 08 Jul 23 | r21 | Pohang SteelersPohang Steele | 0 - 1 | Ulsan Hyundai FCUlsan Hyundai |
| 08 Jul 23 | r21 | Suwon FCSuwon FC | 2 - 2 | Incheon United FCIncheon Unite |
| 08 Jul 23 | r21 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 2 - 1 | FC SeoulFC Seoul |
| 09 Jul 23 | r21 | Daejeon Hana CitizenDaejeon Hana | 2 - 2 | Suwon Samsung BluewingsSuwon Samsung |
| |
| 11 Jul 23 | r22 | Daegu FCDaegu FC | 0 - 0 | Gangwon FCGangwon FC |
| 11 Jul 23 | r22 | Jeju United FCJeju United F | 0 - 0 | Gwangju FCGwangju FC |
| 12 Jul 23 | r22 | Ulsan Hyundai FCUlsan Hyundai | 1 - 2 | Incheon United FCIncheon Unite |
| 12 Jul 23 | r22 | Suwon Samsung BluewingsSuwon Samsung | 1 - 1 | Pohang SteelersPohang Steele |
| 12 Jul 23 | r22 | FC SeoulFC Seoul | 7 - 2 | Suwon FCSuwon FC |
| 12 Jul 23 | r22 | Daejeon Hana CitizenDaejeon Hana | 2 - 2 | Jeonbuk Hyundai MotorsJeonbuk Hyund |
| |
| 15 Jul 23 | r23 | Suwon Samsung BluewingsSuwon Samsung | 3 - 1 | Ulsan Hyundai FCUlsan Hyundai |
| 15 Jul 23 | r23 | Gangwon FCGangwon FC | 1 - 1 | FC SeoulFC Seoul |
| 15 Jul 23 | r23 | Gwangju FCGwangju FC | 1 - 1 | Daegu FCDaegu FC |
| 16 Jul 23 | r23 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 1 - 0 | Suwon FCSuwon FC |
| 16 Jul 23 | r23 | Pohang SteelersPohang Steele | 4 - 2 | Jeju United FCJeju United F |
| 16 Jul 23 | r23 | Incheon United FCIncheon Unite | 2 - 0 | Daejeon Hana CitizenDaejeon Hana |
| |
| 21 Jul 23 | r24 | Ulsan Hyundai FCUlsan Hyundai | 2 - 1 | Jeju United FCJeju United F |
| 21 Jul 23 | r24 | Pohang SteelersPohang Steele | 2 - 1 | Jeonbuk Hyundai MotorsJeonbuk Hyund |
| 22 Jul 23 | r24 | Suwon FCSuwon FC | 0 - 1 | Gwangju FCGwangju FC |
| 22 Jul 23 | r24 | Gangwon FCGangwon FC | 1 - 2 | Suwon Samsung BluewingsSuwon Samsung |
| 22 Jul 23 | r24 | FC SeoulFC Seoul | 0 - 1 | Incheon United FCIncheon Unite |
| 22 Jul 23 | r24 | Daejeon Hana CitizenDaejeon Hana | 1 - 0 | Daegu FCDaegu FC |
| |
| 04 Aug 23 | r25 | Gwangju FCGwangju FC | 3 - 0 | Daejeon Hana CitizenDaejeon Hana |
| 04 Aug 23 | r25 | FC SeoulFC Seoul | 2 - 2 | Pohang SteelersPohang Steele |
| 05 Aug 23 | r25 | Suwon Samsung BluewingsSuwon Samsung | 0 - 2 | Suwon FCSuwon FC |
| 05 Aug 23 | r25 | Daegu FCDaegu FC | 0 - 0 | Ulsan Hyundai FCUlsan Hyundai |
| 06 Aug 23 | r25 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 2 - 0 | Incheon United FCIncheon Unite |
| 06 Aug 23 | r25 | Jeju United FCJeju United F | 1 - 1 | Gangwon FCGangwon FC |
| |
| 12 Aug 23 | r26 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 1 - 1 | Suwon Samsung BluewingsSuwon Samsung |
| 12 Aug 23 | r26 | Gangwon FCGangwon FC | 2 - 0 | Ulsan Hyundai FCUlsan Hyundai |
| 12 Aug 23 | r26 | Jeju United FCJeju United F | 3 - 0 | Suwon FCSuwon FC |
| 13 Aug 23 | r26 | Daejeon Hana CitizenDaejeon Hana | 4 - 3 | FC SeoulFC Seoul |
| 13 Aug 23 | r26 | Incheon United FCIncheon Unite | 3 - 1 | Daegu FCDaegu FC |
| 13 Aug 23 | r26 | Pohang SteelersPohang Steele | 1 - 1 | Gwangju FCGwangju FC |
| |
| 18 Aug 23 | r27 | Suwon Samsung BluewingsSuwon Samsung | 1 - 0 | Jeju United FCJeju United F |
| 18 Aug 23 | r27 | Incheon United FCIncheon Unite | 2 - 2 | Gwangju FCGwangju FC |
| 19 Aug 23 | r27 | Ulsan Hyundai FCUlsan Hyundai | 1 - 0 | Jeonbuk Hyundai MotorsJeonbuk Hyund |
| 19 Aug 23 | r27 | Gangwon FCGangwon FC | 1 - 2 | Suwon FCSuwon FC |
| 19 Aug 23 | r27 | FC SeoulFC Seoul | 2 - 2 | Daegu FCDaegu FC |
| 20 Aug 23 | r27 | Pohang SteelersPohang Steele | 4 - 3 | Daejeon Hana CitizenDaejeon Hana |
| |
| 25 Aug 23 | r28 | Suwon FCSuwon FC | 1 - 2 | Incheon United FCIncheon Unite |
| 25 Aug 23 | r28 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 1 - 1 | Daejeon Hana CitizenDaejeon Hana |
| 26 Aug 23 | r28 | Daegu FCDaegu FC | 1 - 0 | Jeju United FCJeju United F |
| 26 Aug 23 | r28 | Gangwon FCGangwon FC | 1 - 1 | Pohang SteelersPohang Steele |
| 27 Aug 23 | r28 | FC SeoulFC Seoul | 2 - 2 | Ulsan Hyundai FCUlsan Hyundai |
| 27 Aug 23 | r28 | Gwangju FCGwangju FC | 4 - 0 | Suwon Samsung BluewingsSuwon Samsung |
| |
| 01 Sep 23 | r29 | Daejeon Hana CitizenDaejeon Hana | 0 - 1 | Suwon FCSuwon FC |
| 01 Sep 23 | r29 | Daegu FCDaegu FC | 1 - 0 | Gangwon FCGangwon FC |
| 02 Sep 23 | r29 | Suwon Samsung BluewingsSuwon Samsung | 0 - 1 | FC SeoulFC Seoul |
| 02 Sep 23 | r29 | Incheon United FCIncheon Unite | 0 - 2 | Pohang SteelersPohang Steele |
| 03 Sep 23 | r29 | Ulsan Hyundai FCUlsan Hyundai | 0 - 2 | Gwangju FCGwangju FC |
| 03 Sep 23 | r29 | Jeju United FCJeju United F | 0 - 0 | Jeonbuk Hyundai MotorsJeonbuk Hyund |
| |
| 16 Sep 23 | r30 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 1 - 3 | Gangwon FCGangwon FC |
| 16 Sep 23 | r30 | Incheon United FCIncheon Unite | 2 - 1 | Jeju United FCJeju United F |
| 16 Sep 23 | r30 | Pohang SteelersPohang Steele | 2 - 0 | Suwon FCSuwon FC |
| 16 Sep 23 | r30 | Ulsan Hyundai FCUlsan Hyundai | 1 - 1 | Daejeon Hana CitizenDaejeon Hana |
| 17 Sep 23 | r30 | FC SeoulFC Seoul | 0 - 1 | Gwangju FCGwangju FC |
| 17 Sep 23 | r30 | Suwon Samsung BluewingsSuwon Samsung | 0 - 1 | Daegu FCDaegu FC |
| |
| 23 Sep 23 | r31 | Daejeon Hana CitizenDaejeon Hana | 3 - 1 | Suwon Samsung BluewingsSuwon Samsung |
| 23 Sep 23 | r31 | Jeju United FCJeju United F | 1 - 3 | FC SeoulFC Seoul |
| 24 Sep 23 | r31 | Suwon FCSuwon FC | 2 - 3 | Ulsan Hyundai FCUlsan Hyundai |
| 24 Sep 23 | r31 | Gwangju FCGwangju FC | 0 - 1 | Jeonbuk Hyundai MotorsJeonbuk Hyund |
| 24 Sep 23 | r31 | Gangwon FCGangwon FC | 1 - 1 | Incheon United FCIncheon Unite |
| 24 Sep 23 | r31 | Daegu FCDaegu FC | 0 - 0 | Pohang SteelersPohang Steele |
| |
| 30 Sep 23 | r32 | Pohang SteelersPohang Steele | 0 - 0 | Ulsan Hyundai FCUlsan Hyundai |
| 30 Sep 23 | r32 | Suwon FCSuwon FC | 1 - 1 | FC SeoulFC Seoul |
| 30 Sep 23 | r32 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 1 - 3 | Daegu FCDaegu FC |
| 30 Sep 23 | r32 | Incheon United FCIncheon Unite | 2 - 0 | Suwon Samsung BluewingsSuwon Samsung |
| 01 Oct 23 | r32 | Gangwon FCGangwon FC | 1 - 1 | Daejeon Hana CitizenDaejeon Hana |
| 01 Oct 23 | r32 | Jeju United FCJeju United F | 1 - 2 | Gwangju FCGwangju FC |
| |
| 08 Oct 23 | r33 | Ulsan Hyundai FCUlsan Hyundai | 0 - 0 | Incheon United FCIncheon Unite |
| 08 Oct 23 | r33 | Daegu FCDaegu FC | 2 - 2 | Suwon FCSuwon FC |
| 08 Oct 23 | r33 | FC SeoulFC Seoul | 0 - 2 | Jeonbuk Hyundai MotorsJeonbuk Hyund |
| 08 Oct 23 | r33 | Suwon Samsung BluewingsSuwon Samsung | 1 - 0 | Pohang SteelersPohang Steele |
| 08 Oct 23 | r33 | Gwangju FCGwangju FC | 1 - 0 | Gangwon FCGangwon FC |
| 08 Oct 23 | r33 | Daejeon Hana CitizenDaejeon Hana | 1 - 0 | Jeju United FCJeju United F |
| |
| 20 Oct 23 | r01 | Pohang SteelersPohang Steele | 1 - 1 | Incheon United FCIncheon Unite |
| 21 Oct 23 | r01 | Gwangju FCGwangju FC | 1 - 0 | Ulsan Hyundai FCUlsan Hyundai |
| 21 Oct 23 | r01 | Daegu FCDaegu FC | 1 - 2 | Jeonbuk Hyundai MotorsJeonbuk Hyund |
| 22 Oct 23 | r01 | FC SeoulFC Seoul | 2 - 1 | Gangwon FCGangwon FC |
| 22 Oct 23 | r01 | Jeju United FCJeju United F | 2 - 0 | Suwon Samsung BluewingsSuwon Samsung |
| 22 Oct 23 | r01 | Daejeon Hana CitizenDaejeon Hana | 1 - 1 | Suwon FCSuwon FC |
| |
| 28 Oct 23 | r02 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 1 - 1 | Pohang SteelersPohang Steele |
| 28 Oct 23 | r02 | Gangwon FCGangwon FC | 1 - 1 | Jeju United FCJeju United F |
| 28 Oct 23 | r02 | Gwangju FCGwangju FC | 0 - 2 | Incheon United FCIncheon Unite |
| 29 Oct 23 | r02 | Suwon Samsung BluewingsSuwon Samsung | 2 - 2 | Daejeon Hana CitizenDaejeon Hana |
| 29 Oct 23 | r02 | Ulsan Hyundai FCUlsan Hyundai | 2 - 0 | Daegu FCDaegu FC |
| 29 Oct 23 | r02 | Suwon FCSuwon FC | 3 - 4 | FC SeoulFC Seoul |
| |
| 11 Nov 23 | r03 | Daejeon Hana CitizenDaejeon Hana | 0 - 1 | Gangwon FCGangwon FC |
| 11 Nov 23 | r03 | Jeju United FCJeju United F | 0 - 0 | FC SeoulFC Seoul |
| 11 Nov 23 | r03 | Daegu FCDaegu FC | 1 - 1 | Gwangju FCGwangju FC |
| 12 Nov 23 | r03 | Suwon FCSuwon FC | 2 - 3 | Suwon Samsung BluewingsSuwon Samsung |
| 12 Nov 23 | r03 | Incheon United FCIncheon Unite | 1 - 1 | Jeonbuk Hyundai MotorsJeonbuk Hyund |
| 12 Nov 23 | r03 | Ulsan Hyundai FCUlsan Hyundai | 3 - 2 | Pohang SteelersPohang Steele |
| |
| 24 Nov 23 | r04 | Incheon United FCIncheon Unite | 3 - 1 | Ulsan Hyundai FCUlsan Hyundai |
| 25 Nov 23 | r04 | Jeju United FCJeju United F | 0 - 2 | Daejeon Hana CitizenDaejeon Hana |
| 25 Nov 23 | r04 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 2 - 0 | Gwangju FCGwangju FC |
| 25 Nov 23 | r04 | FC SeoulFC Seoul | 0 - 1 | Suwon Samsung BluewingsSuwon Samsung |
| 25 Nov 23 | r04 | Gangwon FCGangwon FC | 2 - 0 | Suwon FCSuwon FC |
| 25 Nov 23 | r04 | Pohang SteelersPohang Steele | 1 - 0 | Daegu FCDaegu FC |
| |
| 02 Dec 23 | r05 | Daejeon Hana CitizenDaejeon Hana | 2 - 2 | FC SeoulFC Seoul |
| 02 Dec 23 | r05 | Suwon FCSuwon FC | 1 - 1 | Jeju United FCJeju United F |
| 02 Dec 23 | r05 | Suwon Samsung BluewingsSuwon Samsung | 0 - 0 | Gangwon FCGangwon FC |
| 03 Dec 23 | r05 | Ulsan Hyundai FCUlsan Hyundai | 1 - 0 | Jeonbuk Hyundai MotorsJeonbuk Hyund |
| 03 Dec 23 | r05 | Gwangju FCGwangju FC | 0 - 0 | Pohang SteelersPohang Steele |
| 03 Dec 23 | r05 | Daegu FCDaegu FC | 2 - 1 | Incheon United FCIncheon Unite |
| |
| 06 Dec 23 | r00 | Busan IParkBusan IPark | 2 - 1 | Suwon FCSuwon FC |
| 06 Dec 23 | r00 | Gimpo CitizenGimpo Citizen | 0 - 0 | Gangwon FCGangwon FC |
| 09 Dec 23 | r00 | Suwon FCSuwon FC | 5 - 2 | Busan IParkBusan IPark |
| 09 Dec 23 | r00 | Gangwon FCGangwon FC | 2 - 1 | Gimpo CitizenGimpo Citizen |
Team 2023 Schedules
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