| DFB-Pokal 1974/1975 - Appearances as Referee |  |
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| 07/09/1974 | Alemannia Aachen | - | SpVgg Erkenschwick | 1:0 | - | - | - |
| 26/10/1974 | Rot-Weiss Essen | - | DJK Gütersloh | 6:2 | - | - | - |
| 21/06/1975 | Eintracht Frankfurt | - | MSV Duisburg | 1:0 | - | - | - |
| DFB-Pokal 1974/1975 - Appearances as Referee | |
|
|
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| 07/09/1974 | Alemannia Aachen | - | SpVgg Erkenschwick | 1:0 | - | - | - |
| 26/10/1974 | Rot-Weiss Essen | - | DJK Gütersloh | 6:2 | - | - | - |
| 21/06/1975 | Eintracht Frankfurt | - | MSV Duisburg | 1:0 | - | - | - |
| 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 |