| Regionalliga Süd (1963-1974) 1963/1964 - Appearances as Referee |  |
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| 01/09/1963 | Freiburger FC | - | BC Augsburg | 3:0 | - | - | - |
| 17/11/1963 | Waldhof Mannheim | - | TSV Schwaben Augsburg | 0:1 | - | - | - |
| 16/02/1964 | 1. FC Schweinfurt 05 | - | SSV Reutlingen | 3:4 | - | - | - |
| Regionalliga Süd (1963-1974) 1963/1964 - Appearances as Referee | |
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| 01/09/1963 | Freiburger FC | - | BC Augsburg | 3:0 | - | - | - |
| 17/11/1963 | Waldhof Mannheim | - | TSV Schwaben Augsburg | 0:1 | - | - | - |
| 16/02/1964 | 1. FC Schweinfurt 05 | - | SSV Reutlingen | 3:4 | - | - | - |
| Complete name: | Otto Tremmel |
| Born: | 10/07/1927 |
| Place of birth: |
Germany |
| Residence: | Germersheim |
| Nationality: |
Germany |
| Bundesliga (GER) appearances: | 2 |