# 2023 K4 League

The 2023 K4 League was the fourth season of the K4 League.
Defending champions Goyang KH was dissolved. Runners-up Yangpyeong FC and promotion play-offs winners Chuncheon Citizen were promoted to the K3 League, while Dangjin Citizen were relegated from the K3 League.
The 16 participating teams played each other twice. The top two teams were promoted to the K3 League and the third and fourth-placed teams qualified for the promotion play-offs.
On 3 July 2023, Goyang Happiness were dissolved due to their financial crisis and Korea Football Association decided to nullify Goyang Happiness' results.

## Teams
### Team changes

Relegated from K3 League
* Dangjin Citizen
Newly joined
* Busan IPark Futures
* Goyang Happiness (invalidated)
* Sejong Vanesse
Promoted to K3 League
* Yangpyeong FC
* Chuncheon Citizen
Withdrawn
* Goyang KH
* FC Namdong

### Stadiums and locations

| Club | City | Stadium | Capacity |
| Busan IPark Futures | Busan | Busan Asiad Auxiliary Stadium | 4,549 |
| FC Chungju | Chungju | Chungju Tangeum Stadium | 3,000 |
| Daegu FC B | Daegu | Daegu Stadium Auxiliary Stadium | 66,422 |
| Daejeon Hana Citizen B | Daejeon | Daejeon World Cup Stadium Auxiliary Stadium | |
| Daejeon Hana Citizen B | Boeun | Boeun Stadium | |
| Dangjin Citizen | Dangjin | Dangjin Sports Complex | 11,718 |
| Gangwon FC B | Gangneung | Gangbuk Public Stadium | |
| Gangwon FC B | Gangneung | Gangnam Football Park | |
| Gangwon FC B | Gangneung | Gangneung Olympic Park | |
| Gangwon FC B | Wonju | Wonju Stadium | |
| Gangwon FC B | Donghae | Donghae Stadium | |
| Geoje Citizen | Geoje | Geoje Stadium | 7,500 |
| Jeonbuk Hyundai Motors B | Wanju | Wanju Stadium | |
| Jeonju Citizen | Jeonju | Jeonju Stadium | 30,000 |
| Jeonju Citizen | Jeonju | Jeonju University Artificial Turf Ground A | |
| Jinju Citizen | Jinju | Jinju Stadium | 20,116 |
| Pyeongchang United | Pyeongchang | Jinbu Sports Park | 300 |
| Pyeongtaek Citizen | Pyeongtaek | Ichung Reports Park | 15,000 |
| Sejong Vanesse | Sejong City | Sejong Civic Stadium Auxiliary Stadium | |
| Seoul Jungnang | Seoul | Jungnang Public Ground | 400 |
| Seoul Nowon United | Seoul | Nowon Madeul Stadium | 446 |
| Yeoju FC | Yeoju | Yeoju Stadium | 16,000 |
* ↑ Used during August.

### Personnel

| Club | Manager |
| Busan IPark Futures | Kim Chi-gon |
| FC Chungju | Gong Moon-bae |
| Daegu FC B | |
| Daejeon Hana Citizen B | |
| Dangjin Citizen | Han Sang-min |
| Gangwon FC B | Lee Seul-gi |
| Geoje Citizen | Song Jae-gyu |
| Jeonbuk Hyundai Motors B | Park Jun-sub |
| Jeonju Citizen | Yang Young-cheol |
| Jinju Citizen | Choi Cheong-il |
| Pyeongchang United | An Hong-min |
| Pyeongtaek Citizen | Lee Ho-joon |
| Sejong Vanesse | |
| Seoul Jungnang | Kim Sang-hwa |
| Seoul Nowon United | Lee Jeong-jae |
| Yeoju FC | Shim Bong-seop |

## League table

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Qualification |
| 1 | Yeoju FC (C, P) | 30 | 20 | 3 | 7 | 63 | 44 | +19 | 63 | Promotion to K3 League |
| 2 | Daegu FC B (P) | 30 | 16 | 7 | 7 | 51 | 36 | +15 | 55 | Promotion to K3 League |
| 3 | Geoje Citizen | 30 | 15 | 8 | 7 | 64 | 37 | +27 | 53 | Qualification for promotion play-offs |
| 4 | Jinju Citizen | 30 | 16 | 4 | 10 | 45 | 37 | +8 | 52 | Qualification for promotion play-offs |
| 5 | Pyeongchang United | 30 | 14 | 8 | 8 | 61 | 54 | +7 | 50 | |
| 6 | Jeonbuk Hyundai Motors B | 30 | 14 | 7 | 9 | 59 | 45 | +14 | 49 | |
| 7 | Dangjin Citizen | 30 | 15 | 4 | 11 | 52 | 43 | +9 | 49 | |
| 8 | Busan IPark Futures | 30 | 12 | 7 | 11 | 51 | 40 | +11 | 43 | |
| 9 | FC Chungju | 30 | 12 | 6 | 12 | 44 | 45 | −1 | 42 | |
| 10 | Pyeongtaek Citizen | 30 | 10 | 10 | 10 | 55 | 54 | +1 | 40 | |
| 11 | Seoul Nowon United | 30 | 10 | 5 | 15 | 49 | 60 | −11 | 35 | |
| 12 | Jeonju Citizen | 30 | 8 | 10 | 12 | 45 | 46 | −1 | 34 | |
| 13 | Daejeon Hana Citizen B | 30 | 8 | 6 | 16 | 37 | 62 | −25 | 30 | |
| 14 | Gangwon FC B | 30 | 6 | 7 | 17 | 46 | 68 | −22 | 25 | |
| 15 | Seoul Jungnang | 30 | 6 | 7 | 17 | 32 | 57 | −25 | 25 | |
| 16 | Sejong Vanesse | 30 | 8 | 1 | 21 | 38 | 64 | −26 | 25 | |

## Results

| Home \ Away | BSI | CHC | DGU | DJN | DAN | GWO | GEO | JBK | JEO | JIN | PCH | PTA | SJV | SJN | SNU | YEO |
| Busan IPark Futures | — | 0–1 | 1–1 | 4–1 | 1–2 | 3–1 | 1–2 | 2–0 | 1–0 | 0–1 | 1–1 | 1–1 | 2–0 | 2–0 | 1–1 | 2–1 |
| FC Chungju | 3–2 | — | 2–0 | 3–2 | 2–0 | 3–3 | 0–1 | 1–1 | 1–1 | 2–0 | 3–0 | 3–2 | 2–0 | 0–0 | 0–1 | 0–2 |
| Daegu FC B | 0–1 | 2–1 | — | 3–2 | 2–1 | 2–1 | 0–0 | 2–1 | 0–3 | 3–1 | 0–0 | 3–3 | 2–1 | 4–1 | 1–0 | 0–1 |
| Daejeon FC B | 0–2 | 1–0 | 3–1 | — | 0–2 | 0–0 | 0–0 | 2–1 | 2–2 | 0–1 | 0–2 | 0–0 | 2–1 | 1–2 | 2–0 | 1–3 |
| Dangjin Citizen | 2–1 | 1–1 | 2–3 | 5–0 | — | 1–0 | 0–2 | 0–1 | 2–2 | 1–1 | 0–4 | 4–2 | 2–0 | 2–0 | 0–1 | 4–1 |
| Gangwon FC B | 2–2 | 4–1 | 1–3 | 3–1 | 1–1 | — | 3–3 | 1–2 | 0–4 | 2–0 | 2–5 | 2–2 | 2–1 | 2–3 | 1–2 | 2–3 |
| Geoje Citizen | 4–0 | 2–3 | 0–0 | 3–0 | 6–0 | 2–0 | — | 3–4 | 1–1 | 4–1 | 3–0 | 2–0 | 4–1 | 1–1 | 0–0 | 1–1 |
| Jeonbuk Hyundai Motors B | 2–2 | 1–1 | 1–1 | 7–2 | 1–0 | 6–0 | 2–1 | — | 0–1 | 0–1 | 2–3 | 1–1 | 1–3 | 1–0 | 6–4 | 0–1 |
| Jeonju Citizen | 0–3 | 5–1 | 0–0 | 1–1 | 0–2 | 3–0 | 1–2 | 1–2 | — | 3–3 | 0–1 | 1–2 | 0–1 | 0–0 | 1–1 | 1–5 |
| Jinju Citizen | 1–0 | 2–1 | 0–2 | 2–0 | 3–0 | 2–1 | 3–2 | 0–1 | 2–0 | — | 2–4 | 0–1 | 2–0 | 2–2 | 3–0 | 2–2 |
| Pyeongchang United | 2–2 | 2–1 | 1–3 | 2–2 | 2–1 | 3–3 | 2–2 | 3–3 | 2–3 | 0–4 | — | 2–1 | 3–0 | 6–1 | 4–3 | 1–3 |
| Pyeongtaek Citizen | 3–2 | 2–1 | 2–5 | 3–2 | 1–2 | 1–3 | 6–1 | 2–3 | 3–3 | 1–2 | 1–1 | — | 4–2 | 2–1 | 3–0 | 1–4 |
| Sejong Vanesse | 0–5 | 2–1 | 3–4 | 1–2 | 2–4 | 0–1 | 2–1 | 2–4 | 4–2 | 3–1 | 2–0 | 1–1 | — | 0–1 | 3–1 | 0–3 |
| Seoul Jungnang | 3–1 | 2–3 | 0–3 | 1–2 | 2–3 | 3–2 | 2–4 | 0–4 | 0–2 | 0–1 | 1–2 | 0–0 | 2–1 | — | 1–1 | 1–2 |
| Seoul Nowon United | 3–5 | 1–2 | 2–1 | 5–2 | 0–3 | 2–1 | 0–4 | 3–0 | 3–4 | 0–1 | 4–1 | 2–2 | 2–1 | 2–2 | — | 3–1 |
| Yeoju FC | 2–1 | 3–1 | 1–0 | 4–5 | 1–5 | 4–2 | 2–1 | 3–3 | 1–0 | 2–1 | 1–2 | 0–1 | 3–1 | 1–0 | 2–1 | — |
* ↑ The KFA awarded Jeonju Citizen a 3–0 win due to the absence of Gangwon FC B, whose players were suffering from COVID-19.
* ↑ The KFA awarded Jinju Citizen a 3–0 win due to Seoul Nowon United's withdrawal.

## Promotion play-offs
### Bracket

| First round | First round | First round | Final | Final | Final |
| | | | K3 | Changwon City | 2 |
| 3 | Geoje Citizen | 1 | K4 | Jinju Citizen | 0 |
| 4 | Jinju Citizen | 4 | | | |

### Final

The promotion play-offs final (K3 League relegation play-off) was contested between the 14th-placed team of K3 League and the winners of the first round.