| Referee | Country |  |
W | D | L |  |
 |
 |
 |
|---|---|---|---|---|---|---|---|---|---|
| Michael Kennedy |
|
27 | 10 | 8 | 9 | 1 | 5 | 0 | 0 |
| Baldomero Toledo |
|
23 | 6 | 11 | 6 | 7 | 4 | 0 | 1 |
| Alex Prus |
|
23 | 9 | 5 | 9 | 0 | 2 | 0 | 0 |
| Terry Vaughn |
|
21 | 9 | 7 | 5 | 1 | 4 | 0 | 1 |
| Abiodun Okulaja |
|
20 | 10 | 5 | 5 | 2 | 5 | 0 | 0 |
| Kevin Stott |
|
19 | 8 | 3 | 8 | 1 | 5 | 1 | 0 |
| Jair Marrufo |
|
18 | 6 | 5 | 7 | 2 | 3 | 0 | 1 |
| Ricardo Salazar |
|
14 | 6 | 3 | 5 | 4 | 3 | 0 | 0 |
| Mark Geiger |
|
13 | 7 | 1 | 5 | 5 | 4 | 0 | 0 |
| Hilario Grajeda |
|
13 | 2 | 4 | 7 | 2 | 0 | 0 | 0 |
| Brian Hall |
|
13 | 8 | 3 | 2 | 1 | 5 | 0 | 0 |
| Jorge Gonzalez |
|
11 | 1 | 4 | 6 | 0 | 2 | 0 | 0 |
| Silviu Petrescu |
|
9 | 5 | 2 | 2 | 1 | 3 | 0 | 0 |
| Ramon Hernandez |
|
7 | 3 | 2 | 2 | 0 | 1 | 0 | 0 |
| Kevin Terry |
|
6 | 3 | 1 | 2 | 0 | 2 | 0 | 0 |
| Andrew Chapin |
|
5 | 1 | 1 | 3 | 2 | 1 | 0 | 0 |
| Tim Weyland |
|
5 | 2 | 1 | 2 | 1 | 1 | 0 | 0 |
| Edvin Jurišević |
|
4 | 2 | 1 | 1 | 1 | 1 | 0 | 0 |
| Marcel Yonan |
|
4 | 0 | 1 | 3 | 1 | 1 | 0 | 0 |
| Jasen Anno |
|
4 | 0 | 2 | 2 | 0 | 1 | 0 | 2 |
| Referee | Country | |
W | D | L | |
|
|
|
| Ricardo Valenzuela |
|
4 | 2 | 0 | 2 | 0 | 1 | 0 | 0 |
| Mark Kadlecik |
|
3 | 0 | 0 | 3 | 1 | 1 | 0 | 0 |
| Chris Penso |
|
3 | 1 | 1 | 1 | 1 | 1 | 0 | 0 |
| Yader Reyes |
|
3 | 0 | 1 | 2 | 1 | 1 | 0 | 0 |
| Paul Ward |
|
3 | 1 | 1 | 1 | 1 | 1 | 0 | 0 |
| Richard Heron |
|
3 | 1 | 2 | 0 | 0 | 0 | 0 | 0 |
| Noel Kenny |
|
3 | 1 | 0 | 2 | 0 | 0 | 0 | 0 |
| Shane Moody |
|
3 | 1 | 2 | 0 | 0 | 1 | 0 | 0 |
| Mauricio Navarro |
|
3 | 0 | 1 | 2 | 0 | 1 | 0 | 0 |
| Steven Depiero |
|
2 | 1 | 1 | 0 | 2 | 0 | 0 | 0 |
| Matthew Foerster |
|
2 | 0 | 2 | 0 | 2 | 0 | 0 | 0 |
| Carlos Batres |
|
2 | 1 | 0 | 1 | 1 | 0 | 0 | 0 |
| Geoff Gamble |
|
2 | 0 | 1 | 1 | 1 | 0 | 0 | 0 |
| Ben Jones |
|
2 | 0 | 1 | 1 | 1 | 0 | 0 | 0 |
| Neal Brizan |
|
2 | 0 | 1 | 1 | 0 | 1 | 0 | 0 |
| Dave Gantar |
|
2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
| Juan Guzman |
|
2 | 0 | 1 | 1 | 0 | 1 | 0 | 0 |
| Walter Quesada |
|
2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
| José Carlos Rivero |
|
2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
| Ali Saheli |
|
2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| Referee | Country | |
W | D | L | |
|
|
|
| Kevin Terry Jr. |
|
2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
| Howard Webb |
|
1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 |
| Joel Aguilar |
|
1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| Benito Archundia |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Elias Bazakos |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Joe Carrocio |
|
1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| Allen Chapman |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Drew Fischer |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Jeff Gontarek |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Otis James |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Roberto Moreno |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Héctor Rodríguez |
|
1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Armando Villarreal |
|
1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Enrico Wijngaarde |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
Grenada