| U20 World Cup 2017 South Korea - Appearances as Referee |  |
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 |
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| 24/05/2017 | Uruguay | - | Japan | 2:0 | 1 | - | - |
| 01/06/2017 | France | - | Italy | 1:2 | 3 | - | - |
| 08/06/2017 | Uruguay | - | Venezuela | 3:4 pso | 9 | - | - |
| U20 World Cup 2017 South Korea - Appearances as Referee | |
|
|
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| 24/05/2017 | Uruguay | - | Japan | 2:0 | 1 | - | - |
| 01/06/2017 | France | - | Italy | 1:2 | 3 | - | - |
| 08/06/2017 | Uruguay | - | Venezuela | 3:4 pso | 9 | - | - |
| Complete name: | Szymon Marciniak |
| Born: | 07/01/1981 |
| Place of birth: |
Poland |
| Nationality: |
Poland |