| Referee | P |  |
 |
 |
P / C |
|---|---|---|---|---|---|
| Michael Kennedy | 2 | 1 | - | - | 2 |
| Chris Penso | 2 | 1 | - | - | 2 |
| Silviu Petrescu | 3 | 1 | - | - | 3 |
| Jorge Gonzalez | 4 | 1 | - | - | 4 |
| Ismail Elfath | 4 | 1 | - | - | 4 |
| Matthew Foerster | 4 | 1 | - | - | 4 |
| Geoff Gamble | 4 | 1 | - | - | 4 |
| Juan Guzman | 6 | 1 | - | - | 6 |
| Jair Marrufo | 7 | 1 | 1 | - | 3.5 |
| Hilario Grajeda | 9 | 1 | - | - | 9 |
| Ricardo Salazar | 12 | 1 | - | - | 12 |
P = Matches played,
C = Cards .