| Referee | P |  |
 |
 |
P / C |
|---|---|---|---|---|---|
| Michael Kennedy | 4 | 2 | - | - | 2 |
| Chris Penso | 8 | 2 | - | - | 4 |
| Ismail Elfath | 10 | 2 | - | - | 5 |
| Silviu Petrescu | 11 | 2 | - | - | 5.5 |
| Mark Geiger | 13 | 2 | - | - | 6.5 |
| Jair Marrufo | 13 | 2 | - | - | 6.5 |
| Ricardo Salazar | 14 | 2 | - | - | 7 |
| Andrew Chapin | 1 | 1 | - | - | 1 |
| Jasen Anno | 2 | 1 | - | - | 2 |
| Jaime Herrera | 2 | 1 | - | - | 2 |
| David Gantar | 3 | 1 | - | - | 3 |
| Elias Bazakos | 4 | 1 | - | - | 4 |
| Allen Chapman | 5 | 1 | - | - | 5 |
| Alex Prus | 5 | 1 | - | - | 5 |
| Geoff Gamble | 5 | 1 | - | - | 5 |
| Alan Kelly | 6 | 1 | - | - | 6 |
| Hilario Grajeda | 6 | 1 | - | - | 6 |
| Terry Vaughn | 6 | 1 | - | - | 6 |
| Juan Guzman | 6 | 1 | - | - | 6 |
P = Matches played,
C = Cards .