| Referee | P |  |
 |
 |
P / C |
|---|---|---|---|---|---|
| Manuel Grafe | 12 | 2 | - | - | 6 |
| Nikola Dabanovic | 1 | 1 | - | - | 1 |
| Clement Turpin | 2 | 1 | - | - | 2 |
| Wolfgang Stark | 7 | 1 | - | - | 7 |
| Bastian Dankert | 11 | 1 | - | - | 11 |
| Benjamin Cortus | 11 | 1 | - | - | 11 |
| Harm Osmers | 11 | 1 | - | - | 11 |
| Deniz Aytekin | 17 | 1 | - | - | 17 |
| Arturo Yamasaki | 1 | 0 | 1 | - | 1 |
| Felix Brych | 20 | 0 | 1 | - | 20 |
P = Matches played,
C = Cards .