| Relegation Bundesliga 1975/1976 - Appearances as Referee |  |
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| 17/06/1976 | 1. FC Nürnberg | - | Borussia Dortmund | 0:1 | 2 | - | 1 |
| Relegation Bundesliga 1975/1976 - Appearances as Referee | |
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| 17/06/1976 | 1. FC Nürnberg | - | Borussia Dortmund | 0:1 | 2 | - | 1 |
| Complete name: | Walter Horstmann |
| Born: | 28/08/1935 † 21/08/2015 |
| Place of birth: |
Hildesheim, 
Germany |
| Residence: | Groß Escherde |
| Nationality: |
Germany |
| Bundesliga (GER) appearances: | 144 |