| Referee | P |  |
 |
 |
P / C |
|---|---|---|---|---|---|
| Hilario Grajeda | 5 | 2 | - | - | 2.5 |
| Niko Bratsis | 1 | 1 | - | - | 1 |
| Hugh Dallas | 1 | 1 | - | - | 1 |
| Edvin Jurisevic | 1 | 1 | - | - | 1 |
| Vitor Melo Pereira | 1 | 1 | - | - | 1 |
| Mark Geiger | 3 | 1 | - | - | 3 |
| Juan Guzman | 3 | 1 | - | - | 3 |
| Tim Weyland | 4 | 1 | - | - | 4 |
| Terry Vaughn | 5 | 1 | - | - | 5 |
| Jorge Larrionda | 2 | 0 | 1 | - | 2 |
P = Matches played,
C = Cards .