| KNVB beker 2014/2015 - Appearances as Assistant | ||||
| 23/09/2014 | VV Sint Bavo | - | Vitesse | 1:2 |
| 25/09/2014 | Achilles'29 | - | FC Twente | 1:3 |
| 18/12/2014 | AFC Ajax | - | Vitesse | 0:4 |
| 20/01/2015 | Roda JC Kerkrade | - | PSV Eindhoven | 3:2 aet |
| KNVB beker 2014/2015 - Appearances as Assistant | ||||
| 23/09/2014 | VV Sint Bavo | - | Vitesse | 1:2 |
| 25/09/2014 | Achilles'29 | - | FC Twente | 1:3 |
| 18/12/2014 | AFC Ajax | - | Vitesse | 0:4 |
| 20/01/2015 | Roda JC Kerkrade | - | PSV Eindhoven | 3:2 aet |
| Complete name: | Nicky Siebert |
| Born: | 29/12/1969 |
| Place of birth: |
Netherlands |
| Nationality: |
Netherlands |