| U19 EURO Qualifiers 2022/2023 - Appearances as Assistant | ||||
| 22/03/2023 | Portugal | - | Sweden | 1:0 |
| 25/03/2023 | Croatia | - | Sweden | 1:1 |
| 28/03/2023 | Croatia | - | Portugal | 0:3 |
| U19 EURO Qualifiers 2022/2023 - Appearances as Assistant | ||||
| 22/03/2023 | Portugal | - | Sweden | 1:0 |
| 25/03/2023 | Croatia | - | Sweden | 1:1 |
| 28/03/2023 | Croatia | - | Portugal | 0:3 |
| Complete name: | Konstantinos Nikolaidis |
| Born: | 00/00/1988 |
| Place of birth: |
Greece |
| Nationality: |
Greece |