| Bundesliga 2017/2018 - Appearances as Referee |  |
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| 06/04/2018 | Hannover 96 | - | Werder Bremen | 2:1 | 3 | - | - |
| 21/04/2018 | RB Leipzig | - | 1899 Hoffenheim | 2:5 | 2 | - | 1 |
| 28/04/2018 | Bayer Leverkusen | - | VfB Stuttgart | 0:1 | 2 | - | - |
| Bundesliga 2017/2018 - Appearances as Referee | |
|
|
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| 06/04/2018 | Hannover 96 | - | Werder Bremen | 2:1 | 3 | - | - |
| 21/04/2018 | RB Leipzig | - | 1899 Hoffenheim | 2:5 | 2 | - | 1 |
| 28/04/2018 | Bayer Leverkusen | - | VfB Stuttgart | 0:1 | 2 | - | - |
| Complete name: | Tobias Welz |
| Born: | 11/07/1977 |
| Place of birth: |
Germany |
| Residence: | Wiesbaden |
| Nationality: |
Germany |
| Profession: | Polizeibeamter |
| Club: | SpVgg Nassau Wiesbaden |
| Height: | 180 cm |
| Weight: | 70 kg |
| Bundesliga (GER) appearances: | 141 |