| Referee | P |  |
 |
 |
P / C |
|---|---|---|---|---|---|
| Hilario Grajeda | 12 | 5 | - | - | 2.4 |
| Chris Penso | 19 | 4 | - | - | 4.75 |
| Juan Guzman | 6 | 3 | - | - | 2 |
| Ricardo Salazar | 9 | 3 | - | - | 3 |
| Jair Marrufo | 10 | 3 | - | - | 3.33 |
| Jorge Gonzalez | 11 | 3 | - | - | 3.67 |
| Mike Tumilty | 2 | 2 | - | - | 1 |
| Fotis Bazakos | 6 | 2 | 1 | - | 2 |
| Ted Unkel | 8 | 2 | - | - | 4 |
| Ismail Elfath | 10 | 2 | - | - | 5 |
| Armando Villarreal | 11 | 2 | - | - | 5.5 |
| Kevin Stott | 11 | 2 | - | - | 5.5 |
| Robert Sibiga | 12 | 2 | - | - | 6 |
| Allen Chapman | 14 | 2 | - | - | 7 |
| Baldomero Toledo | 17 | 2 | - | - | 8.5 |
| Michael Kennedy | 1 | 1 | - | - | 1 |
| Paul Ward | 1 | 1 | - | - | 1 |
| William Collum | 1 | 1 | - | - | 1 |
| Yader Reyes | 1 | 1 | - | - | 1 |
| Matthew Foerster | 1 | 1 | - | - | 1 |
| Abiodun Okulaja | 2 | 1 | - | - | 2 |
| Geoff Gamble | 2 | 1 | - | - | 2 |
| Joseph Dickerson | 2 | 1 | - | - | 2 |
| Charlie Richmond | 3 | 1 | - | - | 3 |
| Sorin Stoica | 5 | 1 | - | - | 5 |
| Alan Kelly | 11 | 1 | 2 | - | 3.67 |
| Edvin Jurisevic | 11 | 1 | 1 | 1 | 3.67 |
| Mark Geiger | 11 | 1 | - | - | 11 |
P = Matches played,
C = Cards .