| K League 1 2016 Relegation - Appearances as Referee |  |
 |
 |
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| 23/10/2016 | Incheon United | - | Gwangju FC | 2:0 | 3 | - | - |
| 05/11/2016 | Suwon Bluewings | - | Gwangju FC | 1:1 | 3 | - | 1 |
| K League 1 2016 Relegation - Appearances as Referee | |
|
|
||||
| 23/10/2016 | Incheon United | - | Gwangju FC | 2:0 | 3 | - | - |
| 05/11/2016 | Suwon Bluewings | - | Gwangju FC | 1:1 | 3 | - | 1 |
| Complete name: | Sang-Il Woo |
| Born: | |
| Place of birth: |
South Korea |
| Nationality: |
South Korea |