| Oberliga West (1947-63) 1951/1952 - Appearances as Referee |  |
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| 09/09/1951 | 1. FC Köln | - | STV Horst-Emscher | 3:0 | - | - | - |
| 18/11/1951 | Fortuna Düsseldorf | - | Schwarz-Weiß Essen | 2:2 | - | - | - |
| Oberliga West (1947-63) 1951/1952 - Appearances as Referee | |
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| 09/09/1951 | 1. FC Köln | - | STV Horst-Emscher | 3:0 | - | - | - |
| 18/11/1951 | Fortuna Düsseldorf | - | Schwarz-Weiß Essen | 2:2 | - | - | - |
| Complete name: | Ritterbach |
| Born: | |
| Place of birth: |
Germany |
| Residence: | Hamborn |
| Nationality: |
Germany |