español
2018 Main
| Pl | W | D | L | Diff | Pts | |||
| 1 | Asan | 36 | 21 | 9 | 6 | 54:27 | 27 | 72 |
| 2 | Seongnam | 36 | 18 | 11 | 7 | 49:36 | 13 | 65 |
| 3 | Busan | 36 | 14 | 14 | 8 | 53:35 | 18 | 56 |
| 4 | Daejeon | 36 | 15 | 8 | 13 | 47:44 | 3 | 53 |
| 5 | Gwangju FC | 36 | 11 | 15 | 10 | 51:41 | 10 | 48 |
| 6 | Anyang | 36 | 12 | 8 | 16 | 44:50 | -6 | 44 |
| 7 | Suwon FC | 36 | 13 | 3 | 20 | 29:46 | -17 | 42 |
| 8 | Bucheon FC 1995 | 36 | 11 | 6 | 19 | 37:50 | -13 | 39 |
| 9 | Ansan Greeners | 36 | 10 | 9 | 17 | 32:45 | -13 | 39 |
| 10 | Seoul E-Land | 36 | 10 | 7 | 19 | 30:52 | -22 | 37 |
Promotion ~ K League 1
Promotion ~ K League 1 (Promotion: )
2018 Promotion
Quarter-finals
| 1 | Seoul | Bye | |
| 3 | Busan | Bye | |
| 4 | Daejeon | Gwangju FC | 1 : 0 |
Semi-finals
| 1 | Seoul | Bye | |
| 2 | Busan | Daejeon | 3 : 0 |
Final
| 1 | Seoul | Busan | 1 : 1, 3 : 1 |