| U20 World Cup 1999 Nigeria - Appearances as Referee |  |
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 |
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| 04/04/1999 | Argentina | - | Kazakhstan | 1:0 | 2 | - | - |
| 07/04/1999 | Ghana | - | Argentina | 1:0 | 3 | - | - |
| 10/04/1999 | Ghana | - | Kazakhstan | 3:0 | - | - | - |
| 18/04/1999 | Japan | - | Mexico | 2:0 | 7 | - | - |
| U20 World Cup 1999 Nigeria - Appearances as Referee | |
|
|
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| 04/04/1999 | Argentina | - | Kazakhstan | 1:0 | 2 | - | - |
| 07/04/1999 | Ghana | - | Argentina | 1:0 | 3 | - | - |
| 10/04/1999 | Ghana | - | Kazakhstan | 3:0 | - | - | - |
| 18/04/1999 | Japan | - | Mexico | 2:0 | 7 | - | - |
| Complete name: | Claus Bo Larsen |
| Born: | 28/10/1965 |
| Place of birth: |
Odense, 
Denmark |
| Nationality: |
Denmark |
| Height: | 181 cm |
| Weight: | 79 kg |