| 25 Feb 23 | r01    | FC SeoulFC Seoul | 2 - 1 | Incheon United FCIncheon Unite |
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| 04 Mar 23 | r02 | Incheon United FCIncheon Unite | 3 - 3 | Daejeon Hana CitizenDaejeon Hana |
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| 12 Mar 23 | r03 | Incheon United FCIncheon Unite | 1 - 0 | Jeju United FCJeju United F |
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| 18 Mar 23 | r04 | Gwangju FCGwangju FC | 5 - 0 | Incheon United FCIncheon Unite |
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| 01 Apr 23 | r05 | Incheon United FCIncheon Unite | 0 - 0 | Daegu FCDaegu FC |
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| 09 Apr 23 | r06 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 2 - 0 | Incheon United FCIncheon Unite |
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| 16 Apr 23 | r07 | Gangwon FCGangwon FC | 0 - 2 | Incheon United FCIncheon Unite |
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| 22 Apr 23 | r08 | Incheon United FCIncheon Unite | 2 - 2 | Suwon FCSuwon FC |
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| 25 Apr 23 | r09 | Incheon United FCIncheon Unite | 0 - 1 | Ulsan Hyundai FCUlsan Hyundai |
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| 30 Apr 23 | r10 | Pohang SteelersPohang Steele | 0 - 2 | Incheon United FCIncheon Unite |
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| 05 May 23 | r11 | Incheon United FCIncheon Unite | 0 - 1 | Suwon Samsung BluewingsSuwon Samsung |
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| 10 May 23 | r12 | Jeju United FCJeju United F | 2 - 0 | Incheon United FCIncheon Unite |
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| 14 May 23 | r13 | Incheon United FCIncheon Unite | 0 - 0 | Jeonbuk Hyundai MotorsJeonbuk Hyund |
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| 20 May 23 | r14 | Incheon United FCIncheon Unite | 1 - 1 | Gwangju FCGwangju FC |
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| 27 May 23 | r15 | Daegu FCDaegu FC | 2 - 2 | Incheon United FCIncheon Unite |
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| 04 Jun 23 | r16 | Daejeon Hana CitizenDaejeon Hana | 1 - 3 | Incheon United FCIncheon Unite |
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| 07 Jun 23 | r17 | Incheon United FCIncheon Unite | 1 - 1 | FC SeoulFC Seoul |
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| 11 Jun 23 | r18 | Suwon Samsung BluewingsSuwon Samsung | 0 - 0 | Incheon United FCIncheon Unite |
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| 25 Jun 23 | r19 | Incheon United FCIncheon Unite | 0 - 1 | Pohang SteelersPohang Steele |
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| 02 Jul 23 | r20 | Incheon United FCIncheon Unite | 1 - 0 | Gangwon FCGangwon FC |
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| 08 Jul 23 | r21 | Suwon FCSuwon FC | 2 - 2 | Incheon United FCIncheon Unite |
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| 12 Jul 23 | r22 | Ulsan Hyundai FCUlsan Hyundai | 1 - 2 | Incheon United FCIncheon Unite |
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| 16 Jul 23 | r23 | Incheon United FCIncheon Unite | 2 - 0 | Daejeon Hana CitizenDaejeon Hana |
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| 22 Jul 23 | r24 | FC SeoulFC Seoul | 0 - 1 | Incheon United FCIncheon Unite |
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| 06 Aug 23 | r25 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 2 - 0 | Incheon United FCIncheon Unite |
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| 13 Aug 23 | r26 | Incheon United FCIncheon Unite | 3 - 1 | Daegu FCDaegu FC |
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| 18 Aug 23 | r27 | Incheon United FCIncheon Unite | 2 - 2 | Gwangju FCGwangju FC |
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| 25 Aug 23 | r28 | Suwon FCSuwon FC | 1 - 2 | Incheon United FCIncheon Unite |
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| 02 Sep 23 | r29 | Incheon United FCIncheon Unite | 0 - 2 | Pohang SteelersPohang Steele |
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| 16 Sep 23 | r30 | Incheon United FCIncheon Unite | 2 - 1 | Jeju United FCJeju United F |
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| 24 Sep 23 | r31 | Gangwon FCGangwon FC | 1 - 1 | Incheon United FCIncheon Unite |
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| 30 Sep 23 | r32 | Incheon United FCIncheon Unite | 2 - 0 | Suwon Samsung BluewingsSuwon Samsung |
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| 08 Oct 23 | r33 | Ulsan Hyundai FCUlsan Hyundai | 0 - 0 | Incheon United FCIncheon Unite |
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| 20 Oct 23 | r01 | Pohang SteelersPohang Steele | 1 - 1 | Incheon United FCIncheon Unite |
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| 28 Oct 23 | r02 | Gwangju FCGwangju FC | 0 - 2 | Incheon United FCIncheon Unite |
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| 12 Nov 23 | r03 | Incheon United FCIncheon Unite | 1 - 1 | Jeonbuk Hyundai MotorsJeonbuk Hyund |
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| 24 Nov 23 | r04 | Incheon United FCIncheon Unite | 3 - 1 | Ulsan Hyundai FCUlsan Hyundai |
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| 03 Dec 23 | r05 | Daegu FCDaegu FC | 2 - 1 | Incheon United FCIncheon Unite |
Team 2023 Schedules
Bucheon FC 1995
Daejeon Hana Citizen
FC Anyang
FC Seoul
Gangwon FC
Gimcheon Sangmu
Gwangju FC
Incheon United
Jeju SK
Jeonbuk Hyundai Motors
Pohang Steelers
Ulsan HD
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