| Europa League 1963/1964 - Appearances as Referee |  |
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| 04/09/1963 | Aris Bonnevoie | - | RFC Liège | 0:2 | - | - | - |
| 15/10/1963 | Lausanne Sports | - | Heart of Midlothian | 3:2 aet | - | - | - |
| 22/04/1964 | RFC Liège | - | Real Zaragoza | 1:0 | - | - | - |
| Europa League 1963/1964 - Appearances as Referee | |
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| 04/09/1963 | Aris Bonnevoie | - | RFC Liège | 0:2 | - | - | - |
| 15/10/1963 | Lausanne Sports | - | Heart of Midlothian | 3:2 aet | - | - | - |
| 22/04/1964 | RFC Liège | - | Real Zaragoza | 1:0 | - | - | - |
| Complete name: | Rudolf Kreitlein |
| Born: | 14/11/1919 † 31/07/2012 |
| Place of birth: |
Stuttgart, 
Germany |
| Nationality: |
Germany |
| Height: | 168 cm |
| Weight: | 60 kg |
| Bundesliga (GER) appearances: | 66 |