| Referee | P |  |
 |
 |
P / C |
|---|---|---|---|---|---|
| Ramy Touchan | 2 | 2 | - | - | 1 |
| Benjamin Brand | 4 | 2 | - | - | 2 |
| Allen Chapman | 6 | 2 | - | - | 3 |
| Manuel Grafe | 2 | 1 | - | - | 2 |
| Frank Willenborg | 2 | 1 | - | - | 2 |
| Peter Sippel | 3 | 1 | - | - | 3 |
| Fotis Bazakos | 3 | 1 | - | - | 3 |
| Ted Unkel | 3 | 1 | - | - | 3 |
| Felix Zwayer | 3 | 1 | - | - | 3 |
| Marcos de Oliveira | 5 | 1 | - | - | 5 |
| Ismail Elfath | 5 | 1 | - | - | 5 |
| Nima Saghafi | 5 | 1 | - | - | 5 |
| Armando Villarreal | 6 | 1 | - | - | 6 |
| Kevin Stott | 7 | 1 | - | - | 7 |
| Drew Fischer | 8 | 1 | - | - | 8 |
| Baldomero Toledo | 9 | 1 | - | - | 9 |
P = Matches played,
C = Cards .