K League 1 red cards
26 ยท 17 players ranked
| # | Player | Red cards | Minutes |
|---|---|---|---|
| 1 |  K. Choi Gwangju | 1 | 585 |
| 2 |  S. Lee Gimcheon Sangmu | 1 | 620 |
| 3 |  T. Figueiredo Jeju United | 1 | 762 |
| 4 |  R. BassaniBucheon 1995 | 1 | 817 |
| 5 |  S. LeeGimcheon Sangmu | 1 | 866 |
| 6 |  D. Oliveira Daejeon Citizen | 1 | 883 |
| 7 | K. Nishiya Pohang Steelers | 1 | 952 |
| 8 | S. Jeong-beom Seoul | 1 | 1060 |
| 9 | ItaloJeju United | 1 | 1137 |
| 10 | M. JeonPohang Steelers | 1 | 1241 |
| 11 | J. Song Gangwon | 1 | 1271 |
| 12 | C. Lee Anyang | 1 | 1370 |
| 13 |  J. KimAnyang | 1 | 1466 |
| 14 |  Y. Al-ArabSeoul | 1 | 1532 |
| 15 |  C. ParkPohang Steelers | 1 | 1643 |
| 16 |  E. NeguebaJeju United | 1 | 1695 |
| 17 |  M. OliveiraAnyang | 1 | 1720 |
Players are ranked on red cards in the K League 1 26 only, and the club shown is the one they played for that season. Updated after every round.