| K League 1 2012 Relegation - Appearances as Referee |  |
 |
 |
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| 27/09/2012 | Gangwon FC | - | Gwangju FC | 1:0 | 1 | 1 | - |
| 17/11/2012 | Daegu FC | - | Gangwon FC | 2:2 | 6 | - | - |
| 24/11/2012 | Chunnam Dragons | - | Seongnam Ilhwa Chunma | 2:0 | 7 | 1 | - |
| K League 1 2012 Relegation - Appearances as Referee | |
|
|
||||
| 27/09/2012 | Gangwon FC | - | Gwangju FC | 1:0 | 1 | 1 | - |
| 17/11/2012 | Daegu FC | - | Gangwon FC | 2:2 | 6 | - | - |
| 24/11/2012 | Chunnam Dragons | - | Seongnam Ilhwa Chunma | 2:0 | 7 | 1 | - |
| Complete name: | Sun-Ho Yoo |
| Born: | |
| Place of birth: |
South Korea |
| Nationality: |
South Korea |