| Referee | P |  |
 |
 |
P / C |
|---|---|---|---|---|---|
| Ricardo Salazar | 7 | 3 | - | - | 2.33 |
| Drew Fischer | 2 | 2 | - | - | 1 |
| Kevin Stott | 5 | 2 | - | - | 2.5 |
| Jorge Gonzalez | 6 | 2 | - | - | 3 |
| Jair Marrufo | 11 | 2 | - | - | 5.5 |
| Marcos de Oliveira | 2 | 1 | - | - | 2 |
| Tim Weyland | 2 | 1 | - | - | 2 |
| Chris Penso | 2 | 1 | - | - | 2 |
| Hilario Grajeda | 4 | 1 | - | - | 4 |
| Silviu Petrescu | 4 | 1 | - | - | 4 |
| Alex Prus | 6 | 1 | - | - | 6 |
| Baldomero Toledo | 7 | 1 | - | - | 7 |
P = Matches played,
C = Cards .