| Referee | P |  |
 |
 |
P / C |
|---|---|---|---|---|---|
| Chris Penso | 15 | 5 | - | - | 3 |
| Mark Geiger | 6 | 3 | - | - | 2 |
| Alan Kelly | 7 | 2 | - | - | 3.5 |
| Ted Unkel | 8 | 2 | - | - | 4 |
| Jorge Gonzalez | 12 | 2 | - | - | 6 |
| Armando Villarreal | 14 | 2 | - | - | 7 |
| Daniel Fitzgerald | 1 | 1 | - | - | 1 |
| Niko Bratsis | 1 | 1 | - | - | 1 |
| Jon Freeman | 1 | 1 | - | - | 1 |
| Rubiel Vazquez | 2 | 1 | - | - | 2 |
| Matthew Foerster | 3 | 1 | - | - | 3 |
| Paul Ward | 3 | 1 | - | - | 3 |
| Nima Saghafi | 4 | 1 | - | - | 4 |
| Sorin Stoica | 5 | 1 | - | - | 5 |
| Edvin Jurisevic | 5 | 1 | - | - | 5 |
| Fotis Bazakos | 8 | 1 | - | - | 8 |
| Ricardo Salazar | 10 | 1 | - | - | 10 |
| David Gantar | 10 | 1 | - | - | 10 |
| Jose Carlos Rivero | 10 | 1 | - | - | 10 |
| Drew Fischer | 10 | 1 | - | - | 10 |
| Silviu Petrescu | 12 | 1 | - | - | 12 |
| Hilario Grajeda | 14 | 1 | - | - | 14 |
| Baldomero Toledo | 16 | 1 | - | - | 16 |
| Jair Marrufo | 6 | 0 | 1 | - | 6 |
P = Matches played,
C = Cards .