| KNVB beker 2018/2019 - Appearances as Assistant | ||||
| 26/09/2018 | HVV Te Werve | - | AFC Ajax | 0:7 |
| 30/10/2018 | Amsterdamsche FC | - | TOP Oss | 1:0 |
| KNVB beker 2018/2019 - Appearances as Assistant | ||||
| 26/09/2018 | HVV Te Werve | - | AFC Ajax | 0:7 |
| 30/10/2018 | Amsterdamsche FC | - | TOP Oss | 1:0 |
| Complete name: | Erik Koopman |
| Born: | 20/04/1992 |
| Place of birth: |
Netherlands |
| Nationality: |
Netherlands |