| Referee | P |  |
 |
 |
P / C |
|---|---|---|---|---|---|
| Juan Guzman | 5 | 2 | - | - | 2.5 |
| Alex Prus | 3 | 1 | - | - | 3 |
| Sorin Stoica | 4 | 1 | - | - | 4 |
| Armando Villarreal | 4 | 1 | - | - | 4 |
| Abiodun Okulaja | 5 | 1 | - | - | 5 |
| Jair Marrufo | 6 | 1 | - | - | 6 |
| Jose Carlos Rivero | 7 | 1 | - | - | 7 |
| Allen Chapman | 8 | 1 | - | - | 8 |
| Edvin Jurisevic | 8 | 1 | - | - | 8 |
| Silviu Petrescu | 9 | 1 | - | - | 9 |
| Drew Fischer | 10 | 1 | - | - | 10 |
| Mark Geiger | 11 | 1 | - | - | 11 |
| Chris Penso | 14 | 1 | - | - | 14 |
P = Matches played,
C = Cards .