| 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 | 34 | 35 | 36 | 37 | 38 |
| Season archive |
| Games | Goals | H | D | A | ||||
| 159 | 386 | 2.42 | 64 | 40.25% | 49 | 30.82% | 46 | 28.93% |
| 2021 | Overall | Home | Away | |||||||||||||||||||||
| P | W | D | L | F | A | Gdf | Pts | Form | P | W | D | L | F | A | P | W | D | L | F | A | ||||
| 1 | Ulsan Hyundai | 27 | 15 | 9 | 3 | 46 | 30 | +16 | 54 | WWWX | 14 | 9 | 4 | 1 | 29 | 16 | 13 | 6 | 5 | 2 | 17 | 14 | ||
| 2 | Chonbuk Motors | 27 | 14 | 8 | 5 | 50 | 29 | +21 | 50 | WLXW | 15 | 9 | 3 | 3 | 30 | 18 | 12 | 5 | 5 | 2 | 20 | 11 | ||
| 3 | 2 | Pohang Steelers | 27 | 10 | 9 | 8 | 28 | 28 | +0 | 39 | WOLX | 13 | 5 | 5 | 3 | 11 | 11 | 14 | 5 | 4 | 5 | 17 | 17 | |
| 4 | 1 | Suwon FC | 27 | 10 | 8 | 9 | 39 | 40 | -1 | 38 | XWWL | 12 | 5 | 3 | 4 | 17 | 17 | 15 | 5 | 5 | 5 | 22 | 23 | |
| 5 | 2 | Daegu FC | 27 | 10 | 8 | 9 | 31 | 32 | -1 | 38 | OWLL | 13 | 6 | 5 | 2 | 17 | 12 | 14 | 4 | 3 | 7 | 14 | 20 | |
| 6 | 2 | Incheon United | 26 | 10 | 6 | 10 | 31 | 35 | -4 | 36 | LWWL | 13 | 6 | 5 | 2 | 14 | 9 | 13 | 4 | 1 | 8 | 17 | 26 | |
| 7 | 1 | Suwon Bluewings | 27 | 9 | 8 | 10 | 33 | 33 | +0 | 35 | OLLL | 14 | 4 | 4 | 6 | 16 | 19 | 13 | 5 | 4 | 4 | 17 | 14 | |
| 8 | Jeju United | 26 | 6 | 13 | 7 | 28 | 30 | -2 | 31 | WLWX | 13 | 4 | 5 | 4 | 17 | 20 | 13 | 2 | 8 | 3 | 11 | 10 | ||
| 9 | Gwangju FC | 26 | 8 | 4 | 14 | 25 | 31 | -6 | 28 | WWWL | 13 | 5 | 3 | 5 | 14 | 12 | 13 | 3 | 1 | 9 | 11 | 19 | ||
| 10 | Gangwon | 24 | 6 | 9 | 9 | 26 | 29 | -3 | 27 | WLWX | 12 | 4 | 6 | 2 | 16 | 9 | 12 | 2 | 3 | 7 | 10 | 20 | ||
| 11 | Seongnam Ilhwa | 27 | 6 | 9 | 12 | 22 | 33 | -11 | 27 | OLLO | 13 | 4 | 3 | 6 | 11 | 16 | 14 | 2 | 6 | 6 | 11 | 17 | ||
| 12 | FC Seoul | 27 | 6 | 7 | 14 | 27 | 36 | -9 | 25 | LLLX | 14 | 3 | 3 | 8 | 15 | 20 | 13 | 3 | 4 | 6 | 12 | 16 | ||
| 14 | Lars VELDWIJK (Suwon FC, 2p) | |
| 13 | JOO Min-kyu (Jeju United, 1p) | |
| 12 | +1 | Stanislav ILJUTCENKO (Chonbuk Motors, 3p) |
| 11 | +2 | GUSTAVO Henrique (Chonbuk Motors, 4p) |
| 10 | Fejsal MULIĆ (Seongnam Ilhwa, 1p) | |
| 9 | LEE Dong-jun (Ulsan Hyundai, 1p) | |
| +2 | Stefan MUGOŠA (Incheon United, 3p) | |
| 8 | HAN Kyo-won (Chonbuk Motors) | |
| LIM Sang-hyeob (Pohang Steelers) | ||
| 7 | SONG Min-kyu (Chonbuk Motors) | |
| +2 | CESINHA (Daegu FC) | |
| NA Sang-ho (FC Seoul, 1p) | ||
| 6 | KIM Gun-Hee (Suwon Bluewings, 1p) | |
| YANG Dong-hyen (Suwon FC, 1p) | ||
| Lukas HINTERSEER (Ulsan Hyundai, 2p) | ||
| KIM Jin-hyuk (Daegu FC) | ||
| 5 | KIM Min-joon (Ulsan Hyundai) | |
| Elías AGUILAR (Incheon United, 1p) | ||
| EDGAR Bruno SILVA (Daegu FC, 1p) | ||
| KIM Min-woo (Suwon Bluewings, 2p) | ||
| Valeri QAZAISHVILI (Ulsan Hyundai) | ||
| Uroš ĐERIĆ (Suwon Bluewings, 2p) | ||
| KO Moo-yeol (Gangwon, 2p) |
| Saturday, 28 August 2021 | |||||
| 28 | Pohang Steelers | 0-0 | Suwon Bluewings | ||
| 28 | Chonbuk Motors | 2-2 | Suwon FC | ||
| 63(p) | Gustavo | 10 | Cho | ||
| 77(p) | Gustavo | 44 | Han | ||
| 28 | Daegu FC | 3-1 | Seongnam Ilhwa | ||
| 29 | Cesinha | 90 | Ma | ||
| 41 | Cesinha | ||||
| 90 | Jung | ||||
| Sunday, 29 August 2021 | |||||
| 28 | Ulsan Hyundai | 3-2 | Incheon United | ||
| 53 | Oh | 80 | Mugoša | ||
| 64 | Lee | 90(p) | Mugoša | ||
| 69 | Lee | ||||
| 28 | Jeju United | 1-0 | FC Seoul | ||
| 28 | Lee | ||||
| Wednesday, 1 September 2021 | |||||
| 20 | Chonbuk Motors | 0-1 | Pohang Steelers | ||
| 17 | Goh | ||||
| Saturday, 4 September 2021 | |||||
| 21 | Seongnam Ilhwa | 0-0 | Daegu FC | ||
| Sunday, 5 September 2021 | |||||
| 16 | FC Seoul | 3-4 | Chonbuk Motors | ||
| 42(p) | Osmar | 31 | Kunimoto | ||
| 68 | Cho | 57(p) | Iljutcenko | ||
| 69(og) | Hong | 73 | Lee | ||
| 90 | Hong | ||||