| Referee | P |  |
 |
 |
P / C |
|---|---|---|---|---|---|
| Baldomero Toledo | 10 | 4 | - | - | 2.5 |
| Jose Carlos Rivero | 5 | 2 | - | - | 2.5 |
| Chris Penso | 11 | 2 | - | - | 5.5 |
| Hilario Grajeda | 2 | 1 | - | - | 2 |
| Marcos de Oliveira | 5 | 1 | - | - | 5 |
| Mark Geiger | 8 | 1 | - | - | 8 |
| Jair Marrufo | 8 | 1 | - | - | 8 |
| Allen Chapman | 9 | 1 | - | - | 9 |
| Ricardo Salazar | 12 | 0 | 1 | - | 12 |
P = Matches played,
C = Cards .