| Referee | P |  |
 |
 |
P / C |
|---|---|---|---|---|---|
| Baldomero Toledo | 4 | 3 | - | - | 1.33 |
| Chris Penso | 6 | 3 | - | - | 2 |
| Vladislav Bezborodov | 1 | 1 | - | - | 1 |
| David Fernandez Borbalan | 1 | 1 | - | - | 1 |
| Mauro Bergonzi | 1 | 1 | - | - | 1 |
| Viktor Kassai | 1 | 1 | - | 1 | 0.5 |
| Joseph Dickerson | 1 | 1 | - | - | 1 |
| Alan Kelly | 2 | 1 | - | - | 2 |
| Drew Fischer | 2 | 1 | - | - | 2 |
| Armando Villarreal | 3 | 1 | - | - | 3 |
P = Matches played,
C = Cards .