| U18 U18 Gruppe A 2017/2018 1. Phase - Appearances as Referee |  |
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 |
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| 12/08/2017 | FCO St. Gallen/Wil | - | FC Winterthur | 3:3 | 2 | - | - |
| 23/09/2017 | Team Vaud Lausanne | - | Servette FC | 3:2 | 5 | - | - |
| 18/11/2017 | Team Aargau | - | FC Sion | 3:1 | 2 | 2 | - |
| U18 U18 Gruppe A 2017/2018 1. Phase - Appearances as Referee | |
|
|
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| 12/08/2017 | FCO St. Gallen/Wil | - | FC Winterthur | 3:3 | 2 | - | - |
| 23/09/2017 | Team Vaud Lausanne | - | Servette FC | 3:2 | 5 | - | - |
| 18/11/2017 | Team Aargau | - | FC Sion | 3:1 | 2 | 2 | - |
| Complete name: | Alexander Tester |
| Born: | 20/08/1991 |
| Place of birth: |
Switzerland |
| Residence: | Bättwil |
| Nationality: |
Switzerland |