| Friendlies 1911 - Appearances as Referee |  |
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| 17/09/1911 | Sweden | - | Norway | 4:1 | - | - | - |
| Friendlies 1911 - Appearances as Referee | |
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| 17/09/1911 | Sweden | - | Norway | 4:1 | - | - | - |
| Complete name: | Nils Middelboe |
| Born: | 05/10/1887 |
| Place of birth: |
Denmark |
| Nationality: |
Denmark |