| U16 Friendlies 2019 - Appearances as Referee |  |
 |
 |
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| 12/06/2019 | Nigeria | - | Mexico | 3:1 | 4 | - | - |
| U16 Friendlies 2019 - Appearances as Referee | |
|
|
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| 12/06/2019 | Nigeria | - | Mexico | 3:1 | 4 | - | - |
| Complete name: | Koei Koya |
| Born: | |
| Place of birth: |
Japan |
| Nationality: |
Japan |