Stefan de Groot
| Date | Contest | Band | Position | Draw |
|---|---|---|---|---|
| 01 Nov 2025 |
Dutch Nationals (Third Division)
|
Christelijke Brassband Advendo Burum
|
||
| 03 Nov 2023 |
Dutch Nationals (Third Division)
|
Advendo Burum
|
5 | 8 |
| 30 Oct 2021 |
Dutch Nationals (Fourth Division)
|
Christelijke Brassband Advendo Burum
|
2 | 1 |