| K League 1 2012 Relegation - Appearances as Assistant | ||||
| 22/09/2012 | Gangwon FC | - | Seongnam Ilhwa Chunma | 0:1 |
| 27/09/2012 | Daejeon Citizen | - | Chunnam Dragons | 1:0 |
| 27/10/2012 | Incheon United | - | Gwangju FC | 3:2 |
| 21/11/2012 | Gwangju FC | - | Incheon United | 1:1 |
| K League 1 2012 Relegation - Appearances as Assistant | ||||
| 22/09/2012 | Gangwon FC | - | Seongnam Ilhwa Chunma | 0:1 |
| 27/09/2012 | Daejeon Citizen | - | Chunnam Dragons | 1:0 |
| 27/10/2012 | Incheon United | - | Gwangju FC | 3:2 |
| 21/11/2012 | Gwangju FC | - | Incheon United | 1:1 |
| Complete name: | Ki-Rog Jeon |
| Born: | |
| Place of birth: |
South Korea |
| Nationality: |
South Korea |