| Champions League 2018/2019 - Appearances as Referee |  |
 |
 |
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| 19/09/2018 | BSC Young Boys | - | Manchester United | 0:3 | 2 | - | - |
| 07/11/2018 | Viktoria Plzeň | - | Real Madrid | 0:5 | 1 | - | - |
| Champions League 2018/2019 - Appearances as Referee | |
|
|
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| 19/09/2018 | BSC Young Boys | - | Manchester United | 0:3 | 2 | - | - |
| 07/11/2018 | Viktoria Plzeň | - | Real Madrid | 0:5 | 1 | - | - |
| Complete name: | Deniz Aytekin |
| Born: | 21/07/1978 |
| Place of birth: |
Nürnberg, 
Germany |
| Residence: | Oberasbach |
| Nationality: |
Germany |
| Profession: | Betriebswirt |
| Club: | TSV Altenberg |
| Height: | 197 cm |
| Weight: | 84 kg |
| Bundesliga (GER) appearances: | 235 |