| Referee | P |  |
 |
 |
P / C |
|---|---|---|---|---|---|
| Robert Sibiga | 8 | 3 | - | - | 2.67 |
| Ismail Elfath | 9 | 3 | - | - | 3 |
| Nima Saghafi | 3 | 2 | - | - | 1.5 |
| Silviu Petrescu | 3 | 2 | - | - | 1.5 |
| Armando Villarreal | 4 | 2 | - | - | 2 |
| Ted Unkel | 7 | 2 | 1 | - | 2.33 |
| Chris Penso | 8 | 2 | - | - | 4 |
| Mark Clattenburg | 1 | 1 | - | - | 1 |
| Enrique Osses | 1 | 1 | - | - | 1 |
| Ovidiu Hategan | 1 | 1 | - | - | 1 |
| Carlos Clos Gomez | 1 | 1 | - | - | 1 |
| Salvio Fagundes | 1 | 1 | - | - | 1 |
| Heber Lopes | 1 | 1 | - | - | 1 |
| Mark Geiger | 4 | 1 | - | - | 4 |
| Jose Carlos Rivero | 4 | 1 | - | - | 4 |
| Baldomero Toledo | 6 | 1 | - | - | 6 |
| Jair Marrufo | 8 | 1 | - | - | 8 |
| Allen Chapman | 9 | 1 | - | - | 9 |
P = Matches played,
C = Cards .