# 2023 K League 1

The 2023 K League 1, also known as the Hana 1Q K League 1 for sponsorship reasons, was the 41st season of the top division of professional football in South Korea, and the eleventh season of the K League 1. Defending champions Ulsan Hyundai successfully defended their title.
After progressing 33 regular rounds as ever, the league was divided into two groups, the top six and the bottom six, and each team played five matches against other teams in its group.

## Teams
### Team changes

Gwangju FC and Daejeon Hana Citizen (both promoted after absences of one and seven years, respectively) were promoted from the 2022 K League 2. Gimcheon Sangmu and Seongnam FC (both relegated after one and four years in the top flight, respectively) were relegated to 2023 K League 2.
| Promoted from K League 2 | Relegated to K League 2 |
| Gwangju FC Daejeon Hana Citizen | Gimcheon Sangmu Seongnam FC |

### Locations

The following twelve clubs competed in the K League 1 during the 2023 season.
| Team | City/Province | Abbreviation |
| Daegu FC | Daegu | Daegu |
| Daejeon Hana Citizen | Daejeon | Daejeon |
| Gangwon FC | Gangwon | Gangwon |
| Gwangju FC | Gwangju | Gwangju |
| Incheon United | Incheon | Incheon |
| Jeju United | Jeju | Jeju |
| Jeonbuk Hyundai Motors | Jeonbuk | Jeonbuk |
| Pohang Steelers | Pohang | Pohang |
| FC Seoul | Seoul | Seoul |
| Suwon Samsung Bluewings | Suwon | Suwon |
| Suwon FC | Suwon | Suwon FC |
| Ulsan Hyundai | Ulsan | Ulsan |

### Stadiums

| Jeju United | Daegu FC | Incheon United |
| Jeju World Cup Stadium | DGB Daegu Bank Park | Incheon Football Stadium |
| Capacity: 29,791 | Capacity: 12,415 | Capacity: 20,891 |
| Pohang Steelers | Suwon FC | Daejeon Hana Citizen |
| Pohang Steel Yard | Suwon Stadium | Daejeon World Cup Stadium |
| Capacity: 17,443 | Capacity: 11,808 | Capacity: 40,903 |
| FC Seoul | Ulsan Hyundai | Suwon Samsung Bluewings |
| Seoul World Cup Stadium | Ulsan Munsu Football Stadium | Suwon World Cup Stadium |
| Capacity: 66,704 | Capacity: 44,102 | Capacity: 44,031 |
| Gwangju FC | Jeonbuk Hyundai Motors | |
| Gwangju Football Stadium | Jeonju World Cup Stadium | |
| Capacity: 10,007 | Capacity: 42,477 | |
| Gangwon FC | Gangwon FC | |
| Chuncheon Songam Leports Town | Gangneung Stadium | |
| Capacity: 20,000 | Capacity: 22,333 | |

### Personnel and sponsoring

| Team | Manager | Main sponsor | Kit manufacturer | Other sponsor(s) |
| Daegu FC | Choi Won-kwon | Daegu Government | Goal Studio | DGB Daegu Bank AJIN Industrial Co., Ltd. |
| Daejeon Hana Citizen | Lee Min-sung | Hana Financial Group | Astore | |
| Gangwon FC | Yoon Jong-hwan | Gangwon Provincial Government | Fila | High1 Resort |
| Gwangju FC | Lee Jung-hyo | Gwangju Government | Kelme | |
| Incheon United | Jo Sung-hwan | Incheon Government | Macron | Shinhan Bank Incheon International Airport |
| Jeju United | Nam Ki-il | SK Energy | Fila | |
| Jeonbuk Hyundai Motors | Dan Petrescu | Hyundai Motor Company | Adidas | |
| Pohang Steelers | Kim Gi-dong | POSCO | Puma | Pohang Government |
| FC Seoul | An Ik-soo | GS Group | Pro-Specs | |
| Suwon Samsung Bluewings | Kim Byung-soo | Cheil Worldwide | Puma | Samsung Electronics Deutsch Motors |
| Suwon FC | Kim Do-kyun | Suwon Government | Hummel | |
| Ulsan Hyundai | Hong Myung-bo | Hyundai Heavy Industries | Adidas | Hyundai Oil Bank |

### Foreign players

The number of allowed foreign players was kept strictly to six per team, including a guaranteed slot for a player from the Asian Football Confederation countries. Teams could field at most five foreign players at any given time, including at least one player from the AFC confederation.
North Korean player An Byong-jun, who played for Suwon Samsung Bluewings, was deemed as a native player by South Korean nationality law.
Players in bold were registered during the mid-season transfer window.
| Team | Player 1 | Player 2 | Player 3 | Player 4 | Player 5 | AFC player | Former player(s) |
| Daegu FC | Césinha | Edgar | Lucas Barcellos | Victor Bobsin | | Keita Suzuki | Daniel Penha Marcos Serrato |
| Daejeon Hana Citizen | Anton Kryvotsyuk | Leandro Ribeiro | Tiago Orobó | Vladislavs Gutkovskis | | Masatoshi Ishida | |
| Gangwon FC | Galego | Vitor Gabriel | Welinton Júnior | Yago Cariello | Marko Tući | Ikromjon Alibaev | Dino Islamović Kevin Höög Jansson |
| Gwangju FC | Jasir Asani | Thomás Bedinelli | Beka Mikeltadze | Timo Letschert | | Aaron Calver | Sandro Lima |
| Incheon United | Hernandes | Paul-José M'Poku | Gerso Fernandes | Stefan Mugoša | | Harrison Delbridge | |
| Jeju United | Reis | Yuri | Jonathan Ring | | | | |
| Jeonbuk Hyundai Motors | André Luis | Gustavo | Rafael Silva | Tomáš Petrášek | Nana Boateng | Jun Amano | |
| Pohang Steelers | Oberdan | Wanderson | Zeca | | | Alex Grant | |
| FC Seoul | Willyan | Bjørn Maars Johnsen | Stanislav Iljutcenko | Aleksandar Paločević | Osmar | Hosam Aiesh | |
| Suwon Samsung Bluewings | Rodrigo Bassani | Werik Popó | Boadu Maxwell Acosty | Dave Bulthuis | Fejsal Mulić | Kazuki Kozuka | |
| Suwon FC | Hugo Gomes | Ricardo Lopes | Walterson | | | Lachlan Jackson | Luan Ferreira Murilo Henrique Lars Veldwijk |
| Ulsan Hyundai | Valeri Qazaishvili | Martin Ádám | Darijan Bojanić | Gustav Ludwigson | | Ataru Esaka | |

## League table

| Pos | Teamvte | Pld | W | D | L | GF | GA | GD | Pts | Qualification or relegation |
| 1 | Ulsan Hyundai (C) | 38 | 23 | 7 | 8 | 63 | 42 | +21 | 76 | Qualification for Champions League Elite league stage |
| 2 | Pohang Steelers | 38 | 16 | 16 | 6 | 53 | 40 | +13 | 64 | Qualification for Champions League Elite league stage |
| 3 | Gwangju FC | 38 | 16 | 11 | 11 | 47 | 35 | +12 | 59 | Qualification for Champions League Elite league stage |
| 4 | Jeonbuk Hyundai Motors | 38 | 16 | 9 | 13 | 45 | 35 | +10 | 57 | Qualification for Champions League Two group stage |
| 5 | Incheon United | 38 | 14 | 14 | 10 | 46 | 42 | +4 | 56 | |
| 6 | Daegu FC | 38 | 13 | 14 | 11 | 42 | 43 | −1 | 53 | |
| 7 | FC Seoul | 38 | 14 | 13 | 11 | 63 | 49 | +14 | 55 | |
| 8 | Daejeon Hana Citizen | 38 | 12 | 15 | 11 | 56 | 58 | −2 | 51 | |
| 9 | Jeju United | 38 | 10 | 11 | 17 | 43 | 49 | −6 | 41 | |
| 10 | Gangwon FC (O) | 38 | 6 | 16 | 16 | 30 | 41 | −11 | 34 | Qualification for relegation play-offs |
| 11 | Suwon FC (O) | 38 | 8 | 9 | 21 | 44 | 76 | −32 | 33 | Qualification for relegation play-offs |
| 12 | Suwon Samsung Bluewings (R) | 38 | 8 | 9 | 21 | 35 | 57 | −22 | 33 | Relegation to K League 2 |
* ↑ Teams played each other three times (33 matches), before the league was split into two groups, the top six and the bottom six.
* ↑ Since second-placed team Pohang Steelers qualified for the Champions League Elite as the Korean FA Cup champions, the spot given to the second-placed team was passed to the third-placed team.'"`UNIQ--ref-00000010-QINU`"'

## Positions by matchday

Leader, and qualification for Champions League Elite league stage  Qualification for Champions League Elite league stage  Qualification for Champions League 2 group stage  Qualification for relegation play-offs  Relegation to K League 2

### Round 1–33

| Team ╲ Round | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 |
| Ulsan Hyundai | 3 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Pohang Steelers | 1 | 1 | 2 | 4 | 3 | 2 | 2 | 3 | 2 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Gwangju FC | 5 | 5 | 8 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 7 | 8 | 9 | 9 | 8 | 7 | 6 | 8 | 5 | 7 | 8 | 8 | 6 | 5 | 5 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 |
| Jeonbuk Hyundai Motors | 9 | 9 | 6 | 8 | 8 | 7 | 9 | 7 | 9 | 10 | 10 | 7 | 8 | 7 | 7 | 8 | 7 | 5 | 8 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 4 | 5 | 6 | 5 | 7 | 4 |
| Daegu FC | 8 | 8 | 9 | 6 | 6 | 8 | 10 | 8 | 8 | 7 | 8 | 9 | 6 | 6 | 6 | 5 | 8 | 6 | 7 | 8 | 5 | 5 | 5 | 7 | 6 | 9 | 8 | 7 | 6 | 4 | 6 | 4 | 5 |
| Incheon United | 9 | 7 | 5 | 7 | 7 | 9 | 8 | 9 | 10 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 7 | 6 | 6 | 7 | 7 | 7 | 6 | 6 |
| FC Seoul | 3 | 2 | 3 | 2 | 4 | 3 | 4 | 2 | 4 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 5 | 4 | 5 | 4 | 5 | 7 |
| Daejeon Hana Citizen | 2 | 4 | 4 | 3 | 2 | 4 | 3 | 4 | 3 | 4 | 4 | 3 | 5 | 5 | 5 | 6 | 5 | 7 | 6 | 6 | 6 | 6 | 7 | 6 | 7 | 6 | 7 | 8 | 8 | 8 | 8 | 8 | 8 |
| Jeju United | 6 | 6 | 10 | 10 | 12 | 10 | 7 | 10 | 7 | 5 | 5 | 5 | 3 | 3 | 3 | 2 | 4 | 4 | 4 | 5 | 7 | 7 | 8 | 9 | 9 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Suwon FC | 6 | 10 | 7 | 9 | 9 | 6 | 6 | 6 | 6 | 8 | 6 | 6 | 7 | 8 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Gangwon FC | 12 | 12 | 12 | 11 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 11 | 12 | 12 | 12 | 11 | 11 | 11 | 11 |
| Suwon Samsung Bluewings | 11 | 10 | 11 | 12 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 12 | 11 | 11 | 11 | 12 | 12 | 12 | 12 |

### Round 34–38

| Team ╲ Round | 34 | 35 | 36 | 37 | 38 |
| Ulsan Hyundai | 1 | 1 | 1 | 1 | 1 |
| Pohang Steelers | 2 | 2 | 2 | 2 | 2 |
| Gwangju FC | 3 | 3 | 3 | 3 | 3 |
| Jeonbuk Hyundai Motors | 4 | 4 | 4 | 4 | 4 |
| Incheon United | 5 | 5 | 5 | 5 | 5 |
| Daegu FC | 6 | 6 | 6 | 6 | 6 |
| FC Seoul | 7 | 7 | 7 | 7 | 7 |
| Daejeon Hana Citizen | 8 | 8 | 8 | 8 | 8 |
| Jeju United | 9 | 9 | 9 | 9 | 9 |
| Gangwon FC | 11 | 11 | 11 | 10 | 10 |
| Suwon FC | 10 | 10 | 10 | 11 | 11 |
| Suwon Samsung Bluewings | 12 | 12 | 12 | 12 | 12 |

## Results
### Matches 1–22

Teams played each other twice, once at home, once away.
| Home \ Away | DGU | DHC | GWN | GJU | ICU | JJU | JHM | PHS | SEL | SSB | SWN | USH |
| Daegu FC | — | 1–0 | 0–0 | 3–4 | 2–2 | 1–1 | 2–0 | 1–1 | 1–0 | 1–1 | 3–1 | 0–3 |
| Daejeon Hana Citizen | 0–1 | — | 2–0 | 1–1 | 1–3 | 0–3 | 2–2 | 0–0 | 3–2 | 2–2 | 2–1 | 2–1 |
| Gangwon FC | 1–1 | 1–2 | — | 1–1 | 0–2 | 0–1 | 1–2 | 0–0 | 3–2 | 0–2 | 1–2 | 0–1 |
| Gwangju FC | 0–2 | 0–0 | 0–0 | — | 5–0 | 0–1 | 2–0 | 4–2 | 0–2 | 2–1 | 2–0 | 0–1 |
| Incheon United | 0–0 | 3–3 | 1–0 | 1–1 | — | 1–0 | 0–0 | 0–1 | 1–1 | 0–1 | 2–2 | 0–1 |
| Jeju United | 1–2 | 1–1 | 2–2 | 0–0 | 2–0 | — | 0–2 | 2–1 | 1–2 | 2–1 | 0–0 | 1–3 |
| Jeonbuk Hyundai Motors | 1–0 | 1–2 | 0–1 | 2–0 | 2–0 | 2–0 | — | 1–2 | 2–1 | 1–1 | 3–1 | 2–0 |
| Pohang Steelers | 3–2 | 3–2 | 1–1 | 2–0 | 0–2 | 2–1 | 1–0 | — | 1–1 | 3–1 | 1–0 | 0–1 |
| FC Seoul | 3–0 | 0–0 | 1–0 | 3–1 | 2–1 | 1–1 | 1–1 | 1–1 | — | 3–1 | 7–2 | 1–2 |
| Suwon Samsung Bluewings | 0–1 | 1–3 | 1–1 | 0–1 | 0–0 | 2–3 | 0–3 | 1–1 | 0–1 | — | 1–2 | 2–3 |
| Suwon FC | 1–1 | 5–3 | 2–0 | 0–2 | 2–2 | 0–5 | 1–0 | 1–2 | 0–3 | 2–0 | — | 1–3 |
| Ulsan Hyundai | 3–1 | 3–3 | 1–0 | 2–1 | 1–2 | 5–1 | 2–1 | 2–2 | 3–2 | 2–1 | 3–0 | — |
Matchday 1 (25–26 February) :
25 February 2023 (2023-02-25)14:00 (UTC+9)
Ulsan Hyundai2–1Jeonbuk Hyundai Motors
Um Won-sang 44'
Ludwigson 65'
Song Min-kyu 11'
Ulsan Munsu Stadium, UlsanAttendance: 28,039
25 February 2023 (2023-02-25)16:30 (UTC+9)
FC Seoul2–1Incheon United
Lim Sang-hyub 30'
Kim Ju-sung 70'
Oh Ban-suk 88'
Seoul World Cup Stadium, Seoul
25 February 2023 (2023-02-25)16:30 (UTC+9)
Suwon Samsung Bluewings0–1Gwangju FC
Asani 88'
Suwon World Cup Stadium, Suwon
26 February 2023 (2023-02-26)14:00 (UTC+9)
Jeju United0–0Suwon FC
Jeju World Cup Stadium, Seogwipo, Jeju Province
26 February 2023 (2023-02-26)14:30 (UTC+9)
Pohang Steelers3–2Daegu FC
Jeong Jae-hee 45+1'
Lee Ho-jae 85', 90'
Go Jae-hyeon 30'
Césinha 65' (pen.)
Pohang Steel Yard, PohangAttendance: 14,089
26 February 2023 (2023-02-26)16:30 (UTC+9)
Daejeon Hana Citizen2–0Gangwon FC
Tiago 10'
Leandro 23'
Daejeon World Cup Stadium, Daejeon
↑ Kick-off time was delayed due to the problem of electric power of Pohang Steel Yard. :
Matchday 2 (4–5 March) :
4 March 2023 (2023-03-04)14:00 (UTC+9)
Incheon United3–3Daejeon Hana Citizen
Lee Myung-joo 8' Hernandes 76' M'Poku 81'
Tiago 20' Kim In-kyun 67', 89'
Incheon Football Stadium, Incheon
4 March 2023 (2023-03-04)14:00 (UTC+9)
Suwon FC1–2Pohang Steelers
Murilo 47'
Goh Young-joon 20' Jeong Jae-hee 33'
Suwon Sports Complex, Suwon
4 March 2023 (2023-03-04)16:30 (UTC+9)
Daegu FC1–1Jeju United
Barcellos 68' (pen.)
Reis 32'
DGB Daegu Bank Park, Daegu
5 March 2023 (2023-03-05)14:00 (UTC+9)
Jeonbuk Hyundai Motors1–1Suwon Samsung Bluewings
Cho Gue-sung 10' (pen.)
Acosty 60'
Jeonju World Cup Stadium, JeonjuAttendance: 19,660
5 March 2023 (2023-03-05)14:00 (UTC+9)
Gangwon FC0–1Ulsan Hyundai
Um Won-sang 50'
Chuncheon Songam Sports Town, Chuncheon
5 March 2023 (2023-03-05)16:30 (UTC+9)
Gwangju FC0–2FC Seoul
Osmar 59' Park Dong-jin 90+1'
Gwangju Football Stadium, Gwangju :
Matchday 3 (11–12 March) :
11 March 2023 (2023-03-11)14:00 (UTC+9)
Suwon FC2–1Suwon Samsung Bluewings
Lee Gwang-hyeok 40' Murilo 52'
Kim Kyung-jung 68'
Suwon Sports Complex, Suwon
11 March 2023 (2023-03-11)14:00 (UTC+9)
Daejeon Hana Citizen0–0Pohang Steelers
Daejeon World Cup Stadium, Daejeon
11 March 2023 (2023-03-11)16:30 (UTC+9)
Gangwon FC1–1Daegu FC
Marcos Serrato 24' (o.g.)
Edgar 11'
Chuncheon Songam Sports Town, Chuncheon
12 March 2023 (2023-03-12)14:00 (UTC+9)
FC Seoul1–2Ulsan Hyundai
Na Sang-ho 53'
Joo Min-kyu 55' Lee Chung-yong 88'
Seoul World Cup Stadium, Seoul
12 March 2023 (2023-03-12)16:30 (UTC+9)
Jeonbuk Hyundai Motors2–0Gwangju FC
Moon Seon-min 74', 76'
Jeonju World Cup Stadium, Jeonju
12 March 2023 (2023-03-12)16:30 (UTC+9)
Incheon United1–0Jeju United
Gerso Fernandes 20'
Incheon Football Stadium, Incheon :
Matchday 4 (18–19 March) :
18 March 2023 (2023-03-18)14:00 (UTC+9)
Pohang Steelers1–1Gangwon FC
Lee Ho-jae 90'
Galego 19' (pen.)
Pohang Steel Yard, Pohang
18 March 2023 (2023-03-18)14:00 (UTC+9)
Gwangju FC5–0Incheon United
Asani 9', 69', 72' Eom Ji-sung 20' Lee Hee-gyun 50'
Gwangju Football Stadium, Gwangju
18 March 2023 (2023-03-18)16:30 (UTC+9)
Jeju United1–2FC Seoul
Song Ju-Hun 90+2'
Kim Bong-soo 67' (o.g.) Paločević 90+5'
Jeju World Cup Stadium, Seogwipo, Jeju Province
19 March 2023 (2023-03-19)14:00 (UTC+9)
Daegu FC2–0Jeonbuk Hyundai Motors
Kim Jin-hyuk 11' Césinha 90+5'
DGB Daegu Bank Park, Daegu
19 March 2023 (2023-03-19)14:00 (UTC+9)
Suwon Samsung Bluewings1–3Daejeon Hana Citizen
Acosty 68'
Lee Jin-hyun 62' Byun Jun-soo 90' Kim Min-deok 90+3'
Suwon World Cup Stadium, Suwon
19 March 2023 (2023-03-19)16:30 (UTC+9)
Ulsan Hyundai3–0Suwon FC
Ludwigson 25' Joo Min-kyu 53' Seol Young-woo 82'
Ulsan Munsu Stadium, Ulsan :
Matchday 5 (1–2 April) :
1 April 2023 (2023-04-01)14:00 (UTC+9)
Jeonbuk Hyundai Motors1–2Pohang Steelers
Ryu Jae-moon 17'
Baek Sung-dong 58' Zeca 90+9'
Jeonju World Cup Stadium, Jeonju
1 April 2023 (2023-04-01)16:30 (UTC+9)
Gwangju FC2–0Suwon FC
Lee Min-ki 5' Park Han-bin 36'
Gwangju Football Stadium, Gwangju
1 April 2023 (2023-04-01)16:30 (UTC+9)
Incheon United0–0Daegu FC
Incheon Football Stadium, Incheon
1 April 2023 (2023-04-01)19:00 (UTC+9)
Daejeon Hana Citizen3–2FC Seoul
Osmar 14' (o.g.) Cho Yu-min 20' Ishida 88'
Iljutcenko 24' Na Sang-ho 50'
Daejeon World Cup Stadium, Daejeon
2 April 2023 (2023-04-02)14:00 (UTC+9)
Jeju United1–3Ulsan Hyundai
Yuri 45+2' (pen.)
Jung Seung-hyun 7' Joo Min-kyu 18' Kang Yun-gu 29'
Jeju World Cup Stadium, Seogwipo, Jeju
2 April 2023 (2023-04-02)16:30 (UTC+9)
Suwon Samsung Bluewings1–1Gangwon FC
Bassani 45+2'
Kim Jin-ho 73'
Suwon World Cup Stadium, Suwon :
Matchday 6 (8–9 April) :
8 April 2023 (2023-04-08)14:00 (UTC+9)
Ulsan Hyundai2–1Suwon Samsung Bluewings
Ludwigson 32', 34'
Kim Kyung-jung 79'
Ulsan Munsu Football Stadium, Ulsan
8 April 2023 (2023-04-08)16:30 (UTC+9)
FC Seoul3–0Daegu FC
Hwang Ui-jo 11' (pen.) Na Sang-ho 32' Paločević 41'
Seoul World Cup Stadium, Seoul
8 April 2023 (2023-04-08)19:00 (UTC+9)
Pohang Steelers2–0Gwangju FC
Goh Young-joon 47' Baek Sung-dong 58'
Pohang Steel Yard, Pohang
9 April 2023 (2023-04-09)15:00 (UTC+9)
Suwon FC5–3Daejeon Hana Citizen
Lee Yong 56' Veldwijk 66', 70' (pen.) Yoon Bit-garam 81' Murilo Henrique 88'
Lee Hyeon-sik 5' Tiago 39', 61'
Suwon Sports Complex, Suwon
9 April 2023 (2023-04-09)16:30 (UTC+9)
Jeonbuk Hyundai Motors2–0Incheon United
Amano 58' Rafael Silva 89'
Jeonju World Cup Stadium, Jeonju
9 April 2023 (2023-04-09)19:00 (UTC+9)
Gangwon FC0–1Jeju United
Seo Jin-su 76'
Chuncheon Song-am Sports Town, Chuncheon :
Matchday 7 (15–16 April) :
15 April 2023 (2023-04-15)14:00 (UTC+9)
Suwon Samsung Bluewings2–3Jeju United
Bassani 8' Yu Je-ho 80'
Yuri 22' Reis 48', 62' (pen.)
Suwon World Cup Stadium, Suwon
15 April 2023 (2023-04-15)16:30 (UTC+9)
Pohang Steelers1–1FC Seoul
Kim In-sung 43'
Na Sang-ho 2'
Pohang Steel Yard, Pohang
15 April 2023 (2023-04-15)19:00 (UTC+9)
Suwon FC1–0Jeonbuk Hyundai Motors
Veldwijk 27'
Suwon Sports Complex, Suwon
16 April 2023 (2023-04-16)14:00 (UTC+9)
Gangwon FC0–2Incheon United
Kim Jun-yeop 22' Hernandes 85'
Chuncheon Song-am Sports Town, Chuncheon
16 April 2023 (2023-04-16)16:30 (UTC+9)
Daejeon Hana Citizen2–1Ulsan Hyundai
Lee Jin-hyun 9' Lee Hyeon-sik 45+2'
Ludwigson 19'
Daejeon World Cup Stadium, DaejeonAttendance: 16,359
16 April 2023 (2023-04-16)19:00 (UTC+9)
Daegu FC3–4Gwangju FC
Go Jae-hyeon 64', 78' Suzuki 81'
Kim Han-gil 19' Sandro Lima 43' Heo Yool 60' Ha Seung-woon 86'
DGB Daegu Bank Park, Daegu :
Matchday 8 (22–23 April) :
22 April 2023 (2023-04-22)14:00 (UTC+9)
FC Seoul3–1Suwon Samsung Bluewings
Na Sang-ho 38' Hwang Ui-jo 53' Paločević 82'
Mulić 89'
Seoul World Cup Stadium, Seoul
22 April 2023 (2023-04-22)16:30 (UTC+9)
Daegu FC1–0Daejeon Hana Citizen
Césinha 19' (pen.)
DGB Daegu Bank Park, Daegu
22 April 2023 (2023-04-22)16:30 (UTC+9)
Ulsan Hyundai2–2Pohang Steelers
Joo Min-kyu 61' Qazaishvili 90'
Go Young-joon 14', 55'
Ulsan Munsu Football Stadium, Ulsan
22 April 2023 (2023-04-22)19:00 (UTC+9)
Incheon United2–2Suwon FC
Cheon Seong-hoon 19', 60'
Veldwijk 57' Yoon Bit-garam 86'
Incheon Football Stadium, Incheon
23 April 2023 (2023-04-23)14:00 (UTC+9)
Gwangju FC0–0Gangwon FC
Gwangju Football Stadium, Gwangju
23 April 2023 (2023-04-23)16:30 (UTC+9)
Jeju United0–2Jeonbuk Hyundai Motors
Song Min-kyu 41' Han Kyo-won 90'
Jeju World Cup Stadium, Seogwipo, Jeju :
Matchday 9 (25–26 April) :
25 April 2023 (2023-04-25)19:30 (UTC+9)
Incheon United0–1Ulsan Hyundai
Martin Ádám 10'
Incheon Football Stadium, Incheon
25 April 2023 (2023-04-25)19:30 (UTC+9)
Pohang Steelers1–0Suwon Samsung Bluewings
Kim Seung-dae 4'
Pohang Steel Yard, Pohang
26 April 2023 (2023-04-26)19:00 (UTC+9)
Gwangju FC0–1Jeju United
Seo Jin-su 77'
Gwangju Football Stadium, Gwangju
26 April 2023 (2023-04-26)19:00 (UTC+9)
Gangwon FC3–2FC Seoul
Park Sang-hyeok 25' Jung Seung-yong 46' Lee Woong-hee 90+1'
Lim Sang-hyub 53', 69'
Chuncheon Song-am Sports Town, Chuncheon
26 April 2023 (2023-04-26)19:30 (UTC+9)
Suwon FC1–1Daegu FC
Lee Gwang-hyeok 51'
Edgar 76'
Suwon Sports Complex, Suwon
26 April 2023 (2023-04-26)19:30 (UTC+9)
Jeonbuk Hyundai Motors1–2Daejeon Hana Citizen
Jeong Tae-wook 86'
Kryvotsyuk 51' Lee Jin-hyun 74'
Jeonju World Cup Stadium, Jeonju :
Matchday 10 (29–30 April) :
29 April 2023 (2023-04-29)14:00 (UTC+9)
Suwon FC0–3FC Seoul
Han Chan-hee 22' Na Sang-ho 51' (pen.), 72'
Suwon Sports Complex, Suwon
29 April 2023 (2023-04-29)16:30 (UTC+9)
Jeonbuk Hyundai Motors0–1Gangwon FC
Yang Hyun-jun 90+5'
Jeonju World Cup Stadium, Jeonju
30 April 2023 (2023-04-30)14:00 (UTC+9)
Daejeon Hana Citizen0–3Jeju United
Kim Oh-gyu 21' Chung Woon 33' Kim Bong-soo 78'
Daejeon World Cup Stadium, Daejeon
30 April 2023 (2023-04-30)15:00 (UTC+9)
Pohang Steelers0–2Incheon United
Mun Ji-hwan 56' Cheon Seong-hoon 66'
Pohang Steel Yard, Pohang
30 April 2023 (2023-04-30)16:30 (UTC+9)
Suwon Samsung Bluewings0–1Daegu FC
Edgar 54'
Suwon World Cup Stadium, Suwon
30 April 2023 (2023-04-30)19:00 (UTC+9)
Ulsan Hyundai2–1Gwangju FC
Qazaishvili 86' Joo Min-kyu 90'
Lee Kang-hyun 81'
Ulsan Munsu Football Stadium, Ulsan :
Matchday 11 (5–6 May) :
5 May 2023 (2023-05-05)14:00 (UTC+9)
FC Seoul1–1Jeonbuk Hyundai Motors
Park Dong-jin 78'
Gustavo 1'
Seoul World Cup Stadium, Seoul
5 May 2023 (2023-05-05)14:00 (UTC+9)
Daegu FC0–3Ulsan Hyundai
Hwang Jae-hwan 12', 41' Qazaishvili 39'
DGB Daegu Bank Park, Daegu
5 May 2023 (2023-05-05)16:30 (UTC+9)
Incheon United0–1Suwon Samsung Bluewings
Lee Ki-je 30'
Incheon Football Stadium, Incheon
6 May 2023 (2023-05-06)14:00 (UTC+9)
Jeju United2–1Pohang Steelers
Ha Chang-rae 49' (o.g.) Kim Bong-soo 56'
Baek Sung-dong 24'
Jeju World Cup Stadium, Seogwipo, Jeju Province
6 May 2023 (2023-05-06)16:30 (UTC+9)
Suwon FC2–0Gangwon FC
Veldwijk 5' Murilo 89'
Suwon Sports Complex, Suwon
6 May 2023 (2023-05-06)19:00 (UTC+9)
Gwangju FC0–0Daejeon Hana Citizen
Gwangju Football Stadium(Gwangju World Cup Stadium 2), Gwangju :
Matchday 12 (9–10 May) :
9 May 2023 (2023-05-09)19:00 (UTC+9)
Ulsan Hyundai1–0Gangwon FC
Joo Min-kyu 52' (pen.)
Ulsan Munsu Football Stadium, Ulsan
9 May 2023 (2023-05-09)19:30 (UTC+9)
Daegu FC1–1Pohang Steelers
Suzuki 38'
Grant 21'
DGB Daegu Bank Park, Daegu
9 May 2023 (2023-05-09)19:30 (UTC+9)
FC Seoul3–1Gwangju FC
Willyan 10' Na Sang-ho 66' Park Dong-jin 87'
Heo Yool 51'
Seoul World Cup Stadium, Seoul
10 May 2023 (2023-05-10)19:30 (UTC+9)
Jeju United2–0Incheon United
Ahn Hyeon-beom 18' Reis 90'
Jeju World Cup Stadium, Seogwipo, Jeju Province
10 May 2023 (2023-05-10)19:30 (UTC+9)
Suwon Samsung Bluewings0–3Jeonbuk Hyundai Motors
Moon Seon-min 1' Paik Seung-ho 41', 66'
Suwon World Cup Stadium, Suwon
10 May 2023 (2023-05-10)19:30 (UTC+9)
Daejeon Hana Citizen2–1Suwon FC
Ishida 16' Jeon Byung-kwan 57'
Veldwijk 61'
Daejeon World Cup Stadium, Daejeon :
Matchday 13 (13–14 May) :
13 May 2023 (2023-05-13)14:00 (UTC+9)
Pohang Steelers3–2Daejeon Hana Citizen
Baek Sung-dong 52' Grant 67' Goh Young-joon 90+1'
Cho Yu-min 54' Jeon Byung-kwan 77'
Pohang Steel Yard, Pohang
13 May 2023 (2023-05-13)16:30 (UTC+9)
Gwangju FC0–2Daegu FC
Park Se-jin 64' Go Jae-hyeon 78'
Gwangju Football Stadium(Gwangju World Cup Stadium 2), Gwangju
13 May 2023 (2023-05-13)19:00 (UTC+9)
Gangwon FC0–2Suwon Samsung Bluewings
Han Ho-gang 33' An Byong-jun 58'
Chuncheon Songam Sports Town, Chuncheon
14 May 2023 (2023-05-14)14:30 (UTC+9)
Ulsan Hyundai3–2FC Seoul
Martin Ádám 15' Qazaishvili 49', 68'
Kim Sin-jin 46' Park Soo-il 90+2'
Ulsan Munsu Football Stadium, Ulsan
14 May 2023 (2023-05-14)16:30 (UTC+9)
Incheon United0–0Jeonbuk Hyundai Motors
Incheon Football Stadium, Incheon
14 May 2023 (2023-05-14)19:00 (UTC+9)
Suwon FC0–5Jeju United
Seo Jin-su 43' (pen.), 69' An Tae-hyun 77' Kim Ju-gong 84' Yuri 90'
Suwon Sports Complex, Suwon :
Matchday 14 (20–21 May) :
20 May 2023 (2023-05-20)16:30 (UTC+9)
Incheon United1–1Gwangju FC
Kweon Han-jin 80'
Ahn Young-kyu 8'
Incheon Football Stadium, Incheon
20 May 2023 (2023-05-20)18:00 (UTC+9)
FC Seoul1–1Jeju United
Willyan 83'
Yuri 78'
Seoul World Cup Stadium, Seoul
20 May 2023 (2023-05-20)19:00 (UTC+9)
Daejeon Hana Citizen0–1Daegu FC
Go Jae-hyeon 45+2'
Daejeon World Cup Stadium, Daejeon
21 May 2023 (2023-05-21)16:30 (UTC+9)
Gangwon FC0–0Pohang Steelers
Chuncheon Songam Sports Town, Chuncheon
21 May 2023 (2023-05-21)18:00 (UTC+9)
Suwon Samsung Bluewings2–3Ulsan Hyundai
An Byong-jun 8' Lee Ki-je 61'
Ludwigson 5' Kim Young-gwon 40' Martin Ádám 86' (pen.)
Suwon World Cup Stadium
21 May 2023 (2023-05-21)19:00 (UTC+9)
Jeonbuk Hyundai Motors3–1Suwon FC
Paik Seung-ho 8' Song Min-kyu 53' Park Jin-seop 84'
Lee Seung-woo 14'
Jeonju World Cup Stadium, Jeonju :
Matchday 15 (27–28 May) :
27 May 2023 (2023-05-27)16:30 (UTC+9)
Jeju United2–1Suwon Samsung Bluewings
Seo Jin-su 21' (pen.) Lim Chai-min 84'
An Byong-jun 16'
Jeju World Cup Stadium, Seogwipo, Jeju Province
27 May 2023 (2023-05-27)19:00 (UTC+9)
Daegu FC2–2Incheon United
Edgar 51', 56'
Sin Jin-ho 31' Hong Si-hoo 90+1'
DGB Daegu Bank Park, Daegu
28 May 2023 (2023-05-28)16:30 (UTC+9)
FC Seoul1–0Gangwon FC
Willyan 28'
Seoul World Cup Stadium, Seoul
28 May 2023 (2023-05-28)18:00 (UTC+9)
Suwon FC0–2Gwangju FC
Letschert 76' Asani 84'
Suwon Sports Complex, Suwon
28 May 2023 (2023-05-28)19:00 (UTC+9)
Ulsan Hyundai3–3Daejeon Hana Citizen
Kim Min-deok 21' (o.g.) Joo Min-kyu 77', 89'
Leandro Ribeiro 25' Ishida 33', 43'
Ulsan Munsu Football Stadium, Ulsan
29 May 2023 (2023-05-29)16:30 (UTC+9)
Pohang Steelers1–0Jeonbuk Hyundai Motors
Goh Young-joon 67'
Pohang Steel Yard, Pohang :
Matchday 16 (3–4 June) :
3 June 2023 (2023-06-03)16:30 (UTC+9)
Jeonbuk Hyundai Motors2–0Ulsan Hyundai
Cho Gue-sung 84' Moon Seon-min 90+4'
Jeonju World Cup Stadium, Jeonju
3 June 2023 (2023-06-03)18:00 (UTC+9)
Suwon Samsung Bluewings1–2Suwon FC
Han Ho-gang 82'
Yoon Bit-garam 44' Oh In-pyo 67'
Suwon World Cup Stadium, Suwon
3 June 2023 (2023-06-03)19:00 (UTC+9)
Jeju United2–2Gangwon FC
Reis 46' Yuri 52'
Kim Dae-won 39' Park Sang-hyeok 80'
Jeju World Cup Stadium, Seogwipo, Jeju Province
3 June 2023 (2023-06-03)19:30 (UTC+9)
Gwangju FC4–2Pohang Steelers
Oberdan 26' (o.g.) Doo Hyeon-seok 56' Eom Ji-sung 65' Ahn Young-kyu 82'
Zeca 11' Lee Ho-jae 75'
Gwangju Football Stadium, Gwangju
4 June 2023 (2023-06-04)16:30 (UTC+9)
Daejeon Hana Citizen1–3Incheon United
Tiago Orobó 59'
M'Poku 42' (pen.) Kim Bo-sub 49', 77'
Daejeon World Cup Stadium, Daejeon
4 June 2023 (2023-06-04)19:00 (UTC+9)
Daegu FC1–0FC Seoul
Césinha 15'
DGB Daegu Bank Park, Daegu :
Matchday 17 (6–7 June) :
6 June 2023 (2023-06-06)16:30 (UTC+9)
Suwon FC1–3Ulsan Hyundai
Yoon Bit-garam 17'
Martin Ádám 70' Joo Min-kyu 88' Kazaishvili 90+3'
Suwon Sports Complex, Suwon
6 June 2023 (2023-06-06)18:00 (UTC+9)
Pohang Steelers2–1Jeju United
Lee Ho-jae 20' Park Seung-wook 90+2'
Reis 81' (pen.)
Pohang Steel Yard, Pohang
7 June 2023 (2023-06-07)19:00 (UTC+9)
Gwangju FC2–1Suwon Samsung Bluewings
Thomás Bedinelli 68', 90+1'
An Byong-jun 40'
Gwangju Football Stadium, Gwangju
7 June 2023 (2023-06-07)19:00 (UTC+9)
Jeonbuk Hyundai Motors1–0Daegu FC
Song Min-kyu 57'
Jeonju World Cup Stadium, Jeonju
7 June 2023 (2023-06-07)19:30 (UTC+9)
Incheon United1–1FC Seoul
Gerso 19'
Hwang Ui-jo 52'
Incheon Football Stadium, Incheon
7 June 2023 (2023-06-07)19:30 (UTC+9)
Gangwon FC1–2Daejeon Hana Citizen
Park Sang-hyeok 49'
Tiago Orobó 27' Ju Se-jong 60'
Chuncheon Song-am Sports Town, Chuncheon :
Matchday 18 (10–11 June) :
10 June 2023 (2023-06-10)16:30 (UTC+9)
Daegu FC3–1Suwon FC
Lucas Barcellos 49' Césinha 89' Hwang Jae-won 90+9'
Lee Seung-woo 76'
DGB Daegu Bank Park, Daegu
10 June 2023 (2023-06-10)18:00 (UTC+9)
Ulsan Hyundai5–1Jeju United
Qazaishvili 31' (pen.), 90+4' Esaka 52' Um Won-sang 54' Joo Min-kyu 71'
Yuri 79'
Ulsan Munsu Football Stadium, Ulsan
10 June 2023 (2023-06-10)20:00 (UTC+9)
Daejeon Hana Citizen1–1Gwangju FC
Kim In-kyun 90+3'
Jeong Ho-yeon 40'
Daejeon World Cup Stadium, Daejeon
11 June 2023 (2023-06-11)16:30 (UTC+9)
Gangwon FC1–2Jeonbuk Hyundai Motors
Jeong Tae-wook 46' (o.g.)
Cho Gue-sung 58', 77'
Chuncheon Song-am Sports Town, Chuncheon
11 June 2023 (2023-06-11)18:00 (UTC+9)
FC Seoul1–1Pohang Steelers
Hwang Ui-jo 37'
Ha Chang-rae 90+4'
Seoul World Cup Stadium, SeoulAttendance: 18,108
11 June 2023 (2023-06-11)19:00 (UTC+9)
Suwon Samsung Bluewings0–0Incheon United
Suwon World Cup Stadium, Suwon :
Matchday 19 (24–25 June) :
24 June 2023 (2023-06-24)16:30 (UTC+9)
Suwon Samsung Bluewings0–1FC Seoul
Willyan 87'
Suwon World Cup Stadium, Suwon
24 June 2023 (2023-06-24)18:00 (UTC+9)
Jeju United1–1Daejeon Hana Citizen
Kim Seung-sub 76'
Tiago Orobó 86'
Jeju World Cup Stadium, Seogwipo, Jeju Province
24 June 2023 (2023-06-24)19:00 (UTC+9)
Gwangju FC2–0Jeonbuk Hyundai Motors
Lee Soon-min 19' Lee Kun-hee 90+1'
Gwangju Football Stadium, Gwangju
24 June 2023 (2023-06-24)19:30 (UTC+9)
Ulsan Hyundai3–1Daegu FC
Kim Tae-hwan 3' Qazaishvili 66', 90+4'
Barcellos 87'
Ulsan Munsu Football Stadium, Ulsan
25 June 2023 (2023-06-25)16:30 (UTC+9)
Incheon United0–1Pohang Steelers
Zeca 12'
Incheon Football Stadium, Incheon
25 June 2023 (2023-06-25)19:00 (UTC+9)
Suwon FC1–1Gangwon FC
Veldwijk 66'
Lee Jeong-hyeop 26'
Suwon Sports Complex, Suwon :
Matchday 20 (1–2 July) :
1 July 2023 (2023-07-01)18:00 (UTC+9)
Jeonbuk Hyundai Motors2–0Jeju United
Lim Chai-min 10' (o.g.) Moon Seon-min 84'
Jeonju World Cup Stadium, Jeonju
1 July 2023 (2023-07-01)19:00 (UTC+9)
Daegu FC1–1Suwon Samsung Bluewings
Césinha 90'
Jo Jin-woo 54' (o.g.)
DGB Daegu Bank Park, Daegu
1 July 2023 (2023-07-01)19:30 (UTC+9)
FC Seoul0–0Daejeon Hana Citizen
Seoul World Cup Stadium, Seoul
2 July 2023 (2023-07-02)18:00 (UTC+9)
Gwangju FC0–1Ulsan Hyundai
Park Yong-woo 60'
Gwangju Football Stadium, Gwangju
2 July 2023 (2023-07-02)19:00 (UTC+9)
Pohang Steelers3–1Suwon FC
Grant 42' Zeca 59' Han Chan-hee 90+2'
Veldwijk 88'
Pohang Steel Yard, Pohang
2 July 2023 (2023-07-02)20:00 (UTC+9)
Incheon United1–0Gangwon FC
Kim Min-seok 5'
Incheon Football Stadium, Incheon :
Matchday 21 (7–9 July) :
7 July 2023 (2023-07-07)19:30 (UTC+9)
Gangwon FC1–1Gwangju FC
Han Kook-young 90+8'
Letschert 90+2'
Gangneung Stadium, Gangneung
7 July 2023 (2023-07-07)19:30 (UTC+9)
Jeju United1–2Daegu FC
Yeon Je-woon 5'
Hong Chul 14' Jang Seong-won 90'
Jeju World Cup Stadium, Seogwipo, Jeju Province
8 July 2023 (2023-07-08)18:00 (UTC+9)
Pohang Steelers0–1Ulsan Hyundai
Joo Min-kyu 23'
Pohang Steel Yard, Pohang
8 July 2023 (2023-07-08)19:00 (UTC+9)
Suwon FC2–2Incheon United
Yoon Bit-garam 9', 33'
Cheon Seong-hoon 42' Hugo Gomes 48' (o.g.)
Suwon Sports Complex, Suwon
8 July 2023 (2023-07-08)19:30 (UTC+9)
Jeonbuk Hyundai Motors2–1FC Seoul
Cho Gue-sung 67' Rafael Silva 76'
Na Sang-ho 90+8' (pen.)
Jeonju World Cup Stadium, Jeonju
9 July 2023 (2023-07-09)19:00 (UTC+9)
Daejeon Hana Citizen2–2Suwon Samsung Bluewings
Kim In-kyun 17' Shin Sang-eun 28'
Ko Seung-beom 31' Mulić 57'
Daejeon World Cup Stadium, Daejeon :
Matchday 22 (11–12 July) :
11 July 2023 (2023-07-11)19:00 (UTC+9)
Daegu FC0–0Gangwon FC
DGB Daegu Bank Park, Daegu
11 July 2023 (2023-07-11)19:30 (UTC+9)
Jeju United0–0Gwangju FC
Jeju World Cup Stadium, Seogwipo, Jeju Province
12 July 2023 (2023-07-12)19:00 (UTC+9)
Ulsan Hyundai1–2Incheon United
Martin Ádám 90'
Kim Bo-sub 55' Hernandes 90+5'
Ulsan Munsu Stadium, Ulsan
12 July 2023 (2023-07-12)19:30 (UTC+9)
FC Seoul7–2Suwon FC
Na Sang-ho 8', 48' Kim Sin-jin 14', 56' Kim Ju-sung 45+4' Willyan 64' Kim Gyeong-min 68'
Yoon Bit-garam 50' Lee Seung-woo 53'
Seoul World Cup Stadium, Seoul
12 July 2023 (2023-07-12)19:30 (UTC+9)
Suwon Samsung Bluewings1–1Pohang Steelers
Mulić 62'
Zeca 79' (pen.)
Suwon World Cup Stadium, Suwon
12 July 2023 (2023-07-12)19:30 (UTC+9)
Daejeon Hana Citizen2–2Jeonbuk Hyundai Motors
Kim In-kyun 76' Shin Sang-eun 90+2'
Song Min-kyu 19' Rafael Silva 90+4'
Daejeon World Cup Stadium, Daejeon :

### Matches 23–33

Teams played each other once, either at home or away.
| Home \ Away | DGU | DHC | GWN | GJU | ICU | JJU | JHM | PHS | SEL | SSB | SWN | USH |
| Daegu FC | — | — | 1–0 | — | — | 1–0 | — | 0–0 | — | — | 2–2 | 0–0 |
| Daejeon Hana Citizen | 1–0 | — | — | — | — | 1–0 | — | — | 4–3 | 3–1 | 0–1 | — |
| Gangwon FC | — | 1–1 | — | — | 1–1 | — | — | 1–1 | 1–1 | 1–2 | — | 2–0 |
| Gwangju FC | 1–1 | 3–0 | 1–0 | — | — | — | 0–1 | — | — | 4–0 | — | — |
| Incheon United | 3–1 | 2–0 | — | 2–2 | — | 2–1 | — | 0–2 | — | 2–0 | — | — |
| Jeju United | — | — | 1–1 | 1–2 | — | — | 0–0 | — | 1–3 | — | 3–0 | — |
| Jeonbuk Hyundai Motors | 1–3 | 1–1 | 1–3 | — | 2–0 | — | — | — | — | 1–1 | 1–0 | — |
| Pohang Steelers | — | 4–3 | — | 1–1 | — | 4–2 | 2–1 | — | — | — | 2–0 | 0–0 |
| FC Seoul | 2–2 | — | — | 0–1 | 0–1 | — | 0–2 | 2–2 | — | — | — | 2–2 |
| Suwon Samsung Bluewings | 0–1 | — | — | — | — | 1–0 | — | 1–0 | 0–1 | — | 0–2 | 3–1 |
| Suwon FC | — | — | 1–1 | 0–1 | 1–2 | — | — | — | 1–1 | — | — | 2–3 |
| Ulsan Hyundai | — | 1–1 | — | 0–2 | 0–0 | 2–1 | 1–0 | — | — | — | — | — |
Matchday 23 (15–16 July) :
15 July 2023 (2023-07-15)19:00 (UTC+9)
Suwon Samsung Bluewings3–1Ulsan Hyundai
Jeon Jin-woo 40' Fejsal Mulić 74' Kim Ju-chan 90+1'
Qazaishvili 90+5'
Suwon World Cup Stadium, Suwon
15 July 2023 (2023-07-15)19:30 (UTC+9)
Gangwon FC1–1FC Seoul
Yu In-soo 31'
Osmar Ibáñez 68'
Gangneung Stadium, Gangneung
15 July 2023 (2023-07-15)20:00 (UTC+9)
Gwangju FC1–1Daegu FC
Ju Young-jae 16'
Lee Keun-ho 23'
Gwangju Football Stadium, Gwangju
16 July 2023 (2023-07-16)19:00 (UTC+9)
Jeonbuk Hyundai Motors1–0Suwon FC
Gustavo 13'
Jeonju World Cup Stadium, Jeonju
16 July 2023 (2023-07-16)19:30 (UTC+9)
Pohang Steelers4–2Jeju United
Go Young-joon 16' Grant 73' Wanderson 74' Kim Seung-dae 90+8'
Kim Ju-gong 55' Yeon Je-woon 71'
Pohang Steel Yard, Pohang
16 July 2023 (2023-07-16)20:00 (UTC+9)
Incheon United2–0Daejeon Hana Citizen
Gerso 84' Hernandes 90+2'
Incheon Football Stadium, Incheon :
Matchday 24 (21–22 July) :
21 July 2023 (2023-07-21)19:00 (UTC+9)
Pohang Steelers2–1Jeonbuk Hyundai Motors
Han Chan-hee 35' Lee Ho-jae 89'
Moon Seon-min 47'
Pohang Steel Yard, Pohang
21 July 2023 (2023-07-21)19:00 (UTC+9)
Ulsan Hyundai2–1Jeju United
Kim Min-hyeok 30' Lee Dong-gyeong 35'
Kim Ju-gong 55'
Ulsan Munsu Stadium, Ulsan
22 July 2023 (2023-07-22)19:00 (UTC+9)
Suwon FC0–1Gwangju FC
44' Doo Hyeon-seok
Suwon Sports Complex, Suwon
22 July 2023 (2023-07-22)19:00 (UTC+9)
Gangwon FC1–2Suwon Samsung Bluewings
Seo Min-woo 41'
Kim Ju-chan 23' Ko Seung-beom 61'
Gangneung Stadium, Gangneung
22 July 2023 (2023-07-22)19:00 (UTC+9)
FC Seoul0–1Incheon United
M'Poku 45'
Seoul World Cup Stadium, Seoul
22 July 2023 (2023-07-22)19:00 (UTC+9)
Daejeon Hana Citizen1–0Daegu FC
Bae Jun-ho 62'
Daejeon World Cup Stadium, Daejeon :
Matchday 25 (4–6 August) :
4 August 2023 (2023-08-04)19:30 (UTC+9)
FC Seoul2–2Pohang Steelers
Kim Sin-jin 54' Paločević 68'
Oberdan 64' Ha Chang-rae 90+4'
Seoul World Cup Stadium, Seoul
4 August 2023 (2023-08-04)19:30 (UTC+9)
Gwangju FC3–0Daejeon Hana Citizen
Kim Han-gil 8' Jeong Ho-yeon 13' Lee Kun-hee 63'
Gwangju Football Stadium, Gwangju
5 August 2023 (2023-08-05)19:00 (UTC+9)
Suwon Samsung Bluewings0–2Suwon FC
Veldwijk 26' Lee Seung-woo 45+3'
Suwon World Cup Stadium, Suwon
5 August 2023 (2023-08-05)19:30 (UTC+9)
Daegu FC0–0Ulsan Hyundai
DGB Daegu Bank Park, Daegu
6 August 2023 (2023-08-06)19:00 (UTC+9)
Jeonbuk Hyundai Motors2–0Incheon United
Park Jae-yong 15' Han Kyo-won 45'
Jeonju World Cup Stadium, Jeonju
6 August 2023 (2023-08-06)19:30 (UTC+9)
Jeju United1–1Gangwon FC
Reis 90+5' (pen.)
Park Sang-hyeok 82'
Jeju World Cup Stadium, Seogwipo, Jeju Province :
Matchday 26 (12–13 August) :
12 August 2023 (2023-08-12)19:00 (UTC+9)
Jeonbuk Hyundai Motors1–1Suwon Samsung Bluewings
Han Kyo-won 66'
Han Ho-gang 31'
Jeonju World Cup Stadium, Jeonju
12 August 2023 (2023-08-12)19:30 (UTC+9)
Gangwon FC2–0Ulsan Hyundai
Seo Min-woo 38' Yago Cariello 90+7'
Gangneung Stadium, Gangneung
12 August 2023 (2023-08-12)20:00 (UTC+9)
Jeju United3–0Suwon FC
Yuri 35', 45+3' Reis 63'
Jeju World Cup Stadium, Seogwipo, Jeju Province
13 August 2023 (2023-08-13)19:00 (UTC+9)
Daejeon Hana Citizen4–3FC Seoul
Tiago Orobó 32', 42' (pen.) Bae Jun-ho 86' Kang Yoon-sung 90'
Willyan 45' Han Seung-gyu 89' Iljutcenko 90+3'
Daejeon World Cup Stadium, Daejeon
13 August 2023 (2023-08-13)19:30 (UTC+9)
Incheon United3–1Daegu FC
Mugoša 23' Mun Ji-hwan 32' Gerso Fernandes 45+1'
Césinha 84' (pen.)
Incheon Football Stadium, Incheon
13 August 2023 (2023-08-13)20:00 (UTC+9)
Pohang Steelers1–1Gwangju FC
Goh Young-jun 20'
Letschert 67'
Pohang Steel Yard, Pohang :
Matchday 27 (18–20 August) :
18 August 2023 (2023-08-18)19:30 (UTC+9)
Suwon Samsung Bluewings1–0Jeju United
Bulthuis 85'
Suwon World Cup Stadium, SuwonAttendance: 7,258
18 August 2023 (2023-08-18)19:30 (UTC+9)
Incheon United2–2Gwangju FC
Gerso 49', 59'
Asani 78' Lee Kun-hee 90+2'
Incheon Football Stadium, IncheonAttendance: 5,870
19 August 2023 (2023-08-19)19:00 (UTC+9)
Gangwon FC1–2Suwon FC
Tući 21'
Lee Seung-woo 49' Yoon Bit-garam 90+5'
Gangneung Stadium, Gangneung
19 August 2023 (2023-08-19)19:00 (UTC+9)
Ulsan Hyundai1–0Jeonbuk Hyundai Motors
Um Won-sang 72'
Ulsan Munsu Football Stadium, UlsanAttendance: 30,008
19 August 2023 (2023-08-19)19:30 (UTC+9)
FC Seoul2–2Daegu FC
Oh Seung-hoon 9' (o.g.) Kim Sin-jin 42'
Lee Keun-ho 25' Edgar 82'
Seoul World Cup Stadium, Seoul
20 August 2023 (2023-08-20)19:00 (UTC+9)
Pohang Steelers4–3Daejeon Hana Citizen
Zeca 41', 51' Kim Seung-dae 76' Hong Yun-sang 90+8'
Tiago Orobó 80', 83', 90+6'
Pohang Steel Yard, Pohang :
Matchday 28 (25–27 August) :
25 August 2023 (2023-08-25)19:00 (UTC+9)
Suwon FC1–2Incheon United
Lee Seung-woo 46'
Cheon Seong-hoon 45+4' Oh Ban-suk 90+7'
Suwon Sports Complex, Suwon
25 August 2023 (2023-08-25)19:30 (UTC+9)
Jeonbuk Hyundai Motors1–1Daejeon Hana Citizen
Song Min-kyu 38'
Tiago Orobó 33'
Jeonju World Cup Stadium, Jeonju
26 August 2023 (2023-08-26)19:00 (UTC+9)
Daegu FC1–0Jeju United
Go Jae-hyeon 62'
DGB Daegu Bank Park, DaeguAttendance: 12,136
26 August 2023 (2023-08-26)19:30 (UTC+9)
Gangwon FC1–1Pohang Steelers
Alibaev 34'
Hong Yun-sang 17'
Gangneung Stadium, Gangneung
27 August 2023 (2023-08-27)19:00 (UTC+9)
FC Seoul2–2Ulsan Hyundai
Iljutcenko 10' Willyan 90+7'
Joo Min-kyu 65', 69'
Seoul World Cup Stadium, Seoul
27 August 2023 (2023-08-27)19:30 (UTC+9)
Gwangju FC4–0Suwon Samsung Bluewings
Lee Hee-gyun 19' Asani 38' Eom Ji-sung 47', 52'
Gwangju Football Stadium, Gwangju :
Matchday 29 (1–3 September) :
1 September 2023 (2023-09-01)19:00 (UTC+9)
Daejeon Hana Citizen0–1Suwon FC
Lee Seung-woo 32'
Daejeon World Cup Stadium, Daejeon
1 September 2023 (2023-09-01)19:30 (UTC+9)
Daegu FC1–0Gangwon FC
Césinha 14'
DGB Daegu Bank Park, Daegu
2 September 2023 (2023-09-02)16:30 (UTC+9)
Suwon Samsung Bluewings0–1FC Seoul
Iljutcenko 1'
Suwon World Cup Stadium, SuwonAttendance: 22,882Referee: KO Hyung-jin
2 September 2023 (2023-09-02)19:00 (UTC+9)
Incheon United0–2Pohang Steelers
Zeca 64' (pen.) Wanderson 87' (pen.)
Incheon Football Stadium, Incheon
3 September 2023 (2023-09-03)16:30 (UTC+9)
Ulsan Hyundai0–2Gwangju FC
Lee Kun-hee 17' Mikeltadze 54'
Ulsan Munsu Football Stadium, UlsanAttendance: 18,358
3 September 2023 (2023-09-03)19:00 (UTC+9)
Jeju United0–0Jeonbuk Hyundai Motors
Jeju World Cup Stadium, Seogwipo, Jeju Province :
Matchday 30 (16–17 September) :
16 September 2023 (2023-09-16)14:00 (UTC+9)
Jeonbuk Hyundai Motors1–3Gangwon FC
Gustavo 6' (pen.)
Vitor Gabriel 45+1' Galego 45+3' Kim Dae-won 76'
Jeonju World Cup Stadium, Jeonju
16 September 2023 (2023-09-16)14:00 (UTC+9)
Incheon United2–1Jeju United
Lee Myung-joo 30' Hernandes 90+4'
Kim Seung-sub 68'
Incheon Football Stadium, Incheon
16 September 2023 (2023-09-16)16:30 (UTC+9)
Pohang Steelers2–0Suwon FC
Zeca 29', 45'
Pohang Steel Yard, Pohang
16 September 2023 (2023-09-16)19:00 (UTC+9)
Ulsan Hyundai1–1Daejeon Hana Citizen
Joo Min-kyu 30' (pen.)
Kim In-kyun 1'
Ulsan Munsu Football Stadium, Ulsan
17 September 2023 (2023-09-17)14:00 (UTC+9)
FC Seoul0–1Gwangju FC
Heo Yool 4'
Seoul World Cup Stadium, Seoul
17 September 2023 (2023-09-17)16:30 (UTC+9)
Suwon Samsung Bluewings0–1Daegu FC
Barcellos 90+'
Suwon World Cup Stadium, Suwon :
Matchday 31 (23–24 September) :
23 September 2023 (2023-09-23)14:00 (UTC+9)
Daejeon Hana Citizen3–1Suwon Samsung Bluewings
Kim In-kyun 15' Yu Kang-hyun 37' Tiago Orobó 90+10'
Kozuka 58'
Daejeon World Cup Stadium, Daejeon
23 September 2023 (2023-09-23)16:30 (UTC+9)
Jeju United1–3FC Seoul
Reis 73'
Lee Seung-mo 40', 50' Iljutcenko 66'
Jeju World Cup Stadium, Seogwipo, Jeju Province
24 September 2023 (2023-09-24)14:00 (UTC+9)
Suwon FC2–3Ulsan Hyundai
Oh In-pyo 68' Walterson 78'
Lee Dong-gyeong 24' Esaka 55' Joo Min-kyu 81'
Suwon Sports Complex, Suwon
24 September 2023 (2023-09-24)14:00 (UTC+9)
Gwangju FC0–1Jeonbuk Hyundai Motors
Ahn Hyeon-beom 73'
Gwangju Football Stadium, Gwangju
24 September 2023 (2023-09-24)16:30 (UTC+9)
Gangwon FC1–1Incheon United
Lee Ji-sol 6'
Mugoša 12'
Gangneung Stadium, Gangneung
24 September 2023 (2023-09-24)19:00 (UTC+9)
Daegu FC0–0Pohang Steelers
DGB Daegu Bank Park, Daegu :
Matchday 32 (30 September – 1 October) :
30 September 2023 (2023-09-30)14:00 (UTC+9)
Suwon FC1–1FC Seoul
Ricardo Lopes 74' (pen.)
Ki Sung-yueng 81'
Suwon Sports Complex, Suwon
30 September 2023 (2023-09-30)14:00 (UTC+9)
Pohang Steelers0–0Ulsan Hyundai
Pohang Steel Yard, Pohang
30 September 2023 (2023-09-30)16:30 (UTC+9)
Jeonbuk Hyundai Motors1–3Daegu FC
Boateng 25'
Go Jae-hyeon 1', 58' Barcelos 16'
Jeonju World Cup Stadium, Jeonju
30 September 2023 (2023-09-30)19:00 (UTC+9)
Incheon United2–0Suwon Samsung Bluewings
Mugoša 20' (pen.) Cheon Seong-hoon 82'
Incheon Football Stadium, Incheon
1 October 2023 (2023-10-01)14:00 (UTC+9)
Gangwon FC1–1Daejeon Hana Citizen
Kim Dae-won 21'
Ishida 19'
Gangneung Stadium, Gangneung
1 October 2023 (2023-10-01)16:30 (UTC+9)
Jeju United1–2Gwangju FC
Yuri 81'
Eom Ji-sung 65' Ha Seung-un 90+4'
Jeju World Cup Stadium, Seogwipo, Jeju Province :
Matchday 33 (8 October) :
8 October 2023 (2023-10-08)15:00 (UTC+9)
Daegu FC2–2Suwon FC
Go Jae-hyeon 31' Victor Bobsin 70'
Lee Seung-woo 45+1', 67'
DGB Daegu Bank Park, Daegu
8 October 2023 (2023-10-08)15:00 (UTC+9)
Daejeon Hana Citizen1–0Jeju United
Kim Min-deok 41'
Daejeon World Cup Stadium, Daejeon
8 October 2023 (2023-10-08)15:00 (UTC+9)
Gwangju FC1–0Gangwon FC
Kim Han-gil 50'
Gwangju Football Stadium, Gwangju
8 October 2023 (2023-10-08)15:00 (UTC+9)
FC Seoul0–2Jeonbuk Hyundai Motors
Han Kyo-won 60' Gustavo 75'
Seoul World Cup Stadium, Seoul
8 October 2023 (2023-10-08)15:00 (UTC+9)
Suwon Samsung Bluewings1–0Pohang Steelers
Kim Ju-chan 23'
Suwon World Cup Stadium, Suwon
8 October 2023 (2023-10-08)15:00 (UTC+9)
Ulsan Hyundai0–0Incheon United
Ulsan Munsu Football Stadium, Ulsan :

### Matches 34–38

Teams played each other once, either at home or away.

#### Final A

| Home \ Away | DGU | GJU | ICU | JHM | PHS | USH |
| Daegu FC | — | 1–1 | 2–1 | 1–2 | — | — |
| Gwangju FC | — | — | 0–2 | — | 0–0 | 1–0 |
| Incheon United | — | — | — | 1–1 | — | 3–1 |
| Jeonbuk Hyundai Motors | — | 2–0 | — | — | 1–1 | — |
| Pohang Steelers | 1–0 | — | 1–1 | — | — | — |
| Ulsan Hyundai | 2–0 | — | — | 1–0 | 3–2 | — |
Matchday 34 (20–21 October) :
20 October 2023 (2023-10-20)19:30 UTC+9
Pohang Steelers1–1Incheon United
Zeca 78' (pen.)
Gerso 27'
Pohang Steel Yard, Pohang
21 October 2023 (2023-10-21)14:00 UTC+9
Gwangju FC1–0Ulsan Hyundai
Lee Kun-hee 88'
Gwangju Football Stadium, Gwangju
21 October 2023 (2023-10-21)16:30 UTC+9
Daegu FC1–2Jeonbuk Hyundai Motors
Edgar 34'
Han Kyo-won 30' Gustavo 90' (pen.)
DGB Daegu Bank Park, Daegu :
Matchday 35 (28–29 October) :
28 October 2023 (2023-10-28)14:00 UTC+9
Jeonbuk Hyundai Motors1–1Pohang Steelers
Gustavo 54' (pen.)
Zeca 70' (pen.)
Jeonju World Cup Stadium, Jeonju
28 October 2023 (2023-10-28)16:30 UTC+9
Gwangju FC0–2Incheon United
Choi Woo-jin 76' Kim Min-seok 84'
Gwangju Football Stadium, Gwangju
29 October 2023 (2023-10-29)14:00 UTC+9
Ulsan Hyundai2–0Daegu FC
Kim Min-hyeok 68' Jang Si-young 90'
Ulsan Munsu Football Stadium, Ulsan :
Matchday 36 (11–12 November) :
11 November 2023 (2023-11-11)16:30 UTC+9
Daegu FC1–1Gwangju FC
Kim Gang-san 40'
Mikeltadze 19'
DGB Daegu Bank Park, DaeguAttendance: 12,222
12 November 2023 (2023-11-12)14:00 UTC+9
Incheon United1–1Jeonbuk Hyundai Motors
Kim Do-hyuk 60'
Park Jae-yong 68'
Incheon Football Stadium, Incheon
12 November 2023 (2023-11-12)16:30 UTC+9
Ulsan Hyundai3–2Pohang Steelers
Seol Young-woo 46' Esaka 50' Joo Min-kyu 62'
Kang Hyeon-je 32' Lee Ho-jae 82' (pen.)
Ulsan Munsu Football Stadium, Ulsan :
Matchday 37 (24–25 November) :
24 November 2023 (2023-11-24)19:30 UTC+9
Incheon United3–1Ulsan Hyundai
Park Seung-ho 51' Hong Si-hoo 74' Oh Ban-suk 76'
Joo Min-kyu 89' (pen.)
Incheon Football Stadium, Incheon
25 November 2023 (2023-11-25)14:00 UTC+9
Jeonbuk Hyundai Motors2–0Gwangju FC
Ahn Hyeon-beom 17' Song Min-kyu 45+1'
Jeonju World Cup Stadium, Jeonju
25 November 2023 (2023-11-25)16:30 UTC+9
Pohang Steelers1–0Daegu FC
Lee Ho-jae 89' (pen.)
Pohang Steel Yard, Pohang :
Matchday 38 (3 December) :
3 December 2023 (2023-12-03)15:00 UTC+9
Ulsan Hyundai1–0Jeonbuk Hyundai Motors
Seol Young-woo 32'
Ulsan Munsu Football Stadium, Ulsan
3 December 2023 (2023-12-03)15:00 UTC+9
Gwangju FC0–0Pohang Steelers
Gwangju Football Stadium, Gwangju
3 December 2023 (2023-12-03)15:00 UTC+9
Daegu FC2–1Incheon United
Edgar 41', 57'
Hernandes Rodrigues 75'
DGB Daegu Bank Park, Daegu :

#### Final B

| Home \ Away | DHC | GWN | JJU | SEL | SSB | SWN |
| Daejeon Hana Citizen | — | 0–1 | — | 2–2 | — | 1–1 |
| Gangwon FC | — | — | 1–1 | — | — | 2–0 |
| Jeju United | 0–2 | — | — | 0–0 | 2–0 | — |
| FC Seoul | — | 2–1 | — | — | 0–1 | — |
| Suwon Samsung Bluewings | 2–2 | 0–0 | — | — | — | — |
| Suwon FC | — | — | 1–1 | 3–4 | 2–3 | — |
Matchday 34 (22 October) :
22 October 2023 (2023-10-22)14:00 UTC+9
FC Seoul2–1Gangwon FC
Na Sang-ho 53' Ji Dong-won 80'
Vitor Gabriel 76'
Seoul World Cup Stadium, Seoul
22 October 2023 (2023-10-22)16:30 UTC+9
Jeju United2–0Suwon Samsung Bluewings
Kim Geon-ung 4' Yuri 25'
Jeju World Cup Stadium, Seogwipo, Jeju Province
22 October 2023 (2023-10-22)16:40 UTC+9
Daejeon Hana Citizen1–1Suwon FC
Tiago Orobó 62'
Kim Hyun 33'
Daejeon World Cup Stadium, Daejeon :
Matchday 35 (28–29 October) :
28 October 2023 (2023-10-28)16:30 UTC+9
Gangwon FC1–1Jeju United
Vitor Gabriel 51'
Chung Woon 90+6'
Gangneung Stadium, Gangneung
29 October 2023 (2023-10-29)14:00 UTC+9
Suwon Samsung Bluewings2–2Daejeon Hana Citizen
Kim Ju-chan 21' Acosty 30'
Tiago Orobó 81' Ishida 90+4'
Suwon World Cup Stadium, Suwon
29 October 2023 (2023-10-29)16:30 UTC+9
Suwon FC3–4FC Seoul
Ricardo Lopes 30', 90+2' (pen.) Lee Seung-woo 67'
Na Sang-ho 57' Willyan 59' Johnsen 73' Kim Gyeong-min 90+3'
Suwon Sports Complex, Suwon :
Matchday 36 (11–12 November) :
11 November 2023 (2023-11-11)14:00 UTC+9
Daejeon Hana Citizen0–1Gangwon FC
Kim Dae-won 69'
Daejeon World Cup Stadium, Daejeon
11 November 2023 (2023-11-11)16:30 UTC+9
Jeju United0–0FC Seoul
Jeju World Cup Stadium, Seogwipo, Jeju Province
12 November 2023 (2023-11-12)14:00 UTC+9
Suwon FC2–3Suwon Samsung Bluewings
Hugo Gomes 31' KIM Hyun 61'
Acosty 45+4' An Byong-jun 54' Kim Ju-chan 79'
Suwon Sports Complex, Suwon :
Matchday 37 (25 November) :
25 November 2023 (2023-11-25)14:00 UTC+9
Jeju United0–2Daejeon Hana Citizen
Shin Sang-eun 84' Kim In-kyun 90+1'
Jeju World Cup Stadium, Seogwipo, Jeju Province
25 November 2023 (2023-11-25)16:30 UTC+9
FC Seoul0–1Suwon Samsung Bluewings
Bassani 63'
Seoul World Cup Stadium, Seoul
25 November 2023 (2023-11-25)16:30 UTC+9
Gangwon FC2–0Suwon FC
Lee Jeong-hyeop 19' Kim Jin-ho 82'
Gangneung Stadium, Gangneung :
Matchday 38 (2 December) :
2 December 2023 (2023-12-02)15:00 UTC+9
Daejeon Hana Citizen2–2FC Seoul
Tiago Orobó 22' Shin Sang-eun 90+7'
Kang Seong-jin 6', 62'
Daejeon World Cup Stadium, Daejeon
2 December 2023 (2023-12-02)15:00 UTC+9
Suwon FC1–1Jeju United
Lee Yeong-jae 50'
Kim Geon-ung 6'
Suwon Sports Complex, Suwon
2 December 2023 (2023-12-02)15:00 UTC+9
Suwon Samsung Bluewings0–0Gangwon FC
Suwon World Cup Stadium, Suwon :

## Relegation play-offs

The tenth-placed team and the eleventh-placed team played against the play-offs winners and the runners-up of the K League 2, respectively, in the relegation play-offs.
| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| Gimpo FC | 1–2 | Gangwon FC | 0–0 | 1–2 |
| Busan IPark | 4–6 | Suwon FC | 2–1 | 2–5 (a.e.t.) |
Gangwon FC won 2–1 on aggregate and therefore both clubs remain in their respective leagues.
Suwon FC won 6–4 on aggregate and therefore both clubs remain in their respective leagues.

## Statistics
### Top goalscorers

Joo Min-kyu, who appeared in less time than Tiago Orobó, won the top goalscorer award.
| Rank | Player | Team | Goals |
| 1 | Joo Min-kyu | Ulsan Hyundai | 17 |
| 1 | Tiago Orobó | Daejeon Hana Citizen | 17 |
| 3 | Zeca | Pohang Steelers | 12 |
| 3 | Na Sang-ho | FC Seoul | 12 |
| 5 | Valeri Qazaishvili | Ulsan Hyundai | 11 |
| 6 | Yuri | Jeju United | 10 |
| 6 | Lee Seung-woo | Suwon FC | 10 |
| 8 | Lars Veldwijk | Suwon FC | 9 |
| 8 | Edgar | Daegu FC | 9 |
| 8 | Go Jae-hyeon | Daegu FC | 9 |

### Top assist providers

| Rank | Player | Team | Assists |
| 1 | Baek Sung-dong | Pohang Steelers | 8 |
| 2 | Leandro Ribeiro | Daejeon Hana Citizen | 7 |
| 2 | Kim Seung-dae | Pohang Steelers | 7 |
| 2 | Tiago Orobó | Daejeon Hana Citizen | 7 |
| 2 | Zeca | Pohang Steelers | 7 |
| 2 | Doo Hyeon-seok | Gwangju FC | 7 |
| 7 | Kim In-kyun | Daejeon Hana Citizen | 6 |
| 7 | Hong Chul | Daegu FC | 6 |
| 7 | Gerso Fernandes | Incheon United | 6 |
| 10 | 7 Players | 7 Players | 5 |

### Hat-tricks

| Player | For | Against | Result | Date |
| Jasir Asani | Gwangju FC | Incheon United | 5–0 | 23 March 2023 |
| Tiago Orobó | Daejeon Hana Citizen | Pohang Steelers | 3–4 | 20 August 2023 |

## Awards
### Weekly awards

| Round | Player of the Round | Player of the Round |
| Round | Player | Club |
| 1 | Lee Ho-jae | Pohang Steelers |
| 2 | Goh Young-joon | Pohang Steelers |
| 3 | Moon Seon-min | Jeonbuk Hyundai Motors |
| 4 | Jasir Asani | Gwangju FC |
| 5 | Baek Sung-dong | Pohang Steelers |
| 6 | Lars Veldwijk | Suwon FC |
| 7 | Lee Jin-hyun | Daejeon Hana Citizen |
| 8 | Cheon Seong-hoon | Incheon United |
| 9 | Anton Kryvotsyuk | Daejeon Hana Citizen |
| 10 | Na Sang-ho | FC Seoul |
| 11 | Hwang Jae-hwan | Ulsan Hyundai |
| 12 | Paik Seung-ho | Jeonbuk Hyundai Motors |
| 13 | Valeri Qazaishvili | Ulsan Hyundai |
| 14 | Song Min-kyu | Jeonbuk Hyundai Motors |
| 15 | Goh Young-joon | Pohang Steelers |
| 16 | Kim Bo-sub | Incheon United |
| 17 | Thomás Bedinelli | Gwangju FC |
| 18 | Cesinha | Daegu FC |
| 19 | Valeri Qazaishvili | Ulsan Hyundai |
| Round | Player of the Round | Player of the Round |
| Round | Player | Club |
| 20 | Oberdan | Pohang Steelers |
| 21 | Oh Seung-hoon | Daegu FC |
| 22 | Na Sang-ho | FC Seoul |
| 23 | Gerso Fernandes | Incheon United |
| 24 | Ko Seung-beom | Suwon Samsung Bluewings |
| 25 | Lee Seung-woo | Suwon FC |
| 26 | Yuri | Jeju United |
| 27 | Zeca | Pohang Steelers |
| 28 | Eom Ji-sung | Gwangju FC |
| 29 | Hugo Gomes | Suwon FC |
| 30 | Zeca | Pohang Steelers |
| 31 | Lee Seung-mo | FC Seoul |
| 32 | Go Jae-hyeon | Daegu FC |
| 33 | Kim Ju-chan | Suwon Samsung Bluewings |
| 34 | Kim Geon-ung | Jeju United |
| 35 | Willyan | FC Seoul |
| 36 | Kim Dae-won | Gangwon FC |
| 37 | Park Seung-ho | Incheon United |
| 38 | Edgar | Daegu FC |

### Monthly awards

| Month | Player of the Month | Player of the Month | Young Player of the Month | Young Player of the Month | Goal of the Month | Goal of the Month |
| Month | Player | Club | Player | Club | Player | Club |
| February/March | Joo Min-kyu | Ulsan | Jeong Ho-yeon | Gwangju | Lee Jin-hyun | Daejeon |
| April | Na Sang-ho | Seoul | Cheon Seong-hoon | Incheon | Na Sang-ho | Seoul |
| May | Paik Seung-ho | Jeonbuk | Hwang Jae-won | Daegu | Lee Ki-je | Suwon |
| June | Valeri Qazaishvili | Ulsan | Lee Ho-jae | Pohang | Joo Min-kyu | Ulsan |
| July | Na Sang-ho | Seoul | Kim Ju-chan | Suwon | Kim Ju-chan | Suwon |
| August | Lee Seung-woo | Suwon FC | Eom Ji-sung | Gwangju | Tiago Orobó | Daejeon |
| September | Zeca | Pohang | Heo Yool | Gwangju | Beka Mikeltadze | Gwangju |
| October–December | Seol Young-woo | Ulsan | Kim Ju-chan | Suwon | Ki Sung-yueng | Seoul |
| Month | Manager of the Month | Manager of the Month | Manager of the Month | Save of the Month | Save of the Month |
| Month | Manager | Club | Div. | Player | Club |
| February/March | Hong Myung-bo | Ulsan | 1 | Kim Kyeong-min | Gwangju |
| April | Ko Jeong-woon | Gimpo | 2 | Lee Chang-geun | Daejeon |
| May | Nam Ki-il | Jeju | 1 | Hwang In-jae | Pohang |
| June | Lee Jung-hyo | Gwangju | 1 | Lee Chang-geun | Daejeon |
| July | Jo Sung-hwan | Incheon | 1 | Lee Chang-geun | Daejeon |
| August | Choi Yun-kyum | Chungbuk Cheongju | 2 | Jo Hyeon-woo | Ulsan |
| September | Park Jin-sub | Busan | 2 | Jo Hyeon-woo | Ulsan |
| October–December | Chung Jung-yong | Gimcheon | 2 | Lee Chang-geun | Daejeon |

### Annual awards

The 2023 K League Awards was held on 4 December 2023.
| Award | Winner | Club |
| Most Valuable Player | Kim Young-gwon | Ulsan Hyundai |
| Young Player of the Year | Jeong Ho-yeon | Gwangju FC |
| Top goalscorer | Joo Min-kyu | Ulsan Hyundai |
| Top assist provider | Baek Sung-dong | Pohang Steelers |
| Manager of the Year | Hong Myung-bo | Ulsan Hyundai |
| Position | Best XI | Best XI | Best XI | Best XI |
| Goalkeeper | Jo Hyeon-woo (Ulsan) | Jo Hyeon-woo (Ulsan) | Jo Hyeon-woo (Ulsan) | Jo Hyeon-woo (Ulsan) |
| Defenders | Seol Young-woo (Ulsan) | Alex Grant (Pohang) | Kim Young-gwon (Ulsan) | Wanderson (Pohang) |
| Midfielders | Um Won-sang (Ulsan) | Lee Soon-min (Gwangju) | Oberdan (Pohang) | Gerso Fernandes (Incheon) |
| Forwards | Zeca (Pohang) | Zeca (Pohang) | Joo Min-kyu (Ulsan) | Joo Min-kyu (Ulsan) |

## Attendance

Attendants who entered with free ticket are not counted.
| Pos | Team | Total | High | Low | Average | Change |
| 1 | FC Seoul | 430,029 | 45,007 | 10,236 | 22,663 | +157.9%$^†$ |
| 2 | Ulsan Hyundai | 345,990 | 30,756 | 5,318 | 18,210 | +108.3%$^†$ |
| 3 | Daejeon Hana Citizen | 244,274 | 20,592 | 8,377 | 12,857 | +466.4%$^†$ |
| 4 | Jeonbuk Hyundai Motors | 238,759 | 27,797 | 5,067 | 12,566 | +108.8%$^†$ |
| 5 | Suwon Samsung Bluewings | 224,177 | 24,932 | 4,727 | 11,799 | +101.7%$^†$ |
| 6 | Daegu FC | 208,340 | 12,334 | 6,943 | 10,965 | +71.0%$^†$ |
| 7 | Incheon United | 169,826 | 15,738 | 5,076 | 8,938 | +69.9%$^†$ |
| 8 | Pohang Steelers | 164,295 | 14,640 | 3,080 | 8,647 | +81.1%$^†$ |
| 9 | Gangwon FC | 122,772 | 11,084 | 2,581 | 6,462 | +198.5%$^†$ |
| 10 | Jeju United | 114,015 | 10,041 | 3,280 | 6,001 | +90.4%$^†$ |
| 11 | Suwon FC | 98,580 | 9,221 | 1,605 | 5,188 | +64.1%$^†$ |
| 12 | Gwangju FC | 86,090 | 7,357 | 1,871 | 4,831 | +269.6%$^†$ |
| | League total | 2,447,147 | 45,007 | 1,605 | 10,733 | +122.7%$^†$ |
Updated to games played on 1 December 2023 Source: K League Notes: $^†$ Teams that played previous season in K League 2.