K League 1 Referees Ranked
All K League 1 referees ranked by total cards per match this season, strictest at the top, most lenient at the bottom. Click any referee for their full card profile, home-card bias and recent fixtures officiated. Useful for card and booking markets.
| # | Referee | Games | Total/match | Yellow | Red | Fouls |
|---|---|---|---|---|---|---|
| 1 | Cheol-Jun Choi | 9 | 5.00 | 4.78 | 0.22 | 24.56 |
| 2 | Shin, Yong-jun | 17 | 4.88 | 4.76 | 0.12 | 22.41 |
| 3 | Tae-Hwan Seol | 15 | 4.53 | 4.33 | 0.20 | 18.73 |
| 4 | Ko Hyungjin | 18 | 4.44 | 4.22 | 0.22 | 20.78 |
| 5 | Song, Min-Seok | 17 | 4.29 | 4.12 | 0.18 | 21.00 |
| 6 | Dae-Yong Kim | 17 | 4.18 | 4.06 | 0.12 | 21.59 |
| 7 | Dong sik Jeong | 3 | 4.00 | 4.00 | 0.00 | 19.00 |
| 8 | Kim, Yong-woo | 12 | 4.00 | 3.75 | 0.25 | 23.33 |
| 9 | Go Hyeong-jin | 10 | 3.90 | 3.90 | 0.00 | 21.20 |
| 10 | Woo-Sung Kim | 17 | 3.88 | 3.65 | 0.24 | 21.41 |
| 11 | Park Byeong-jin | 12 | 3.67 | 3.50 | 0.17 | 25.58 |
| 12 | Choi, Kwang-Ho | 5 | 3.60 | 3.60 | 0.00 | 26.00 |
| 13 | Chae, Sang-Hyeop | 14 | 3.57 | 3.36 | 0.21 | 21.71 |
| 14 | Lee, Dong Jun | 16 | 3.50 | 3.25 | 0.25 | 23.94 |
| 15 | Hyun Jae Choi | 7 | 3.14 | 3.14 | 0.00 | 27.14 |
| 16 | Jong-Hyeok Kim | 16 | 3.06 | 3.06 | 0.00 | 17.81 |
| 17 | Byungjin Park | 16 | 2.81 | 2.56 | 0.25 | 25.12 |
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