| Referee | Matches | FH | SH | H | A | W | D | L |  |
 |
 |
C/M |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Silviu Petrescu | 1 | - | 3 | - | 3 | - | 1 | - | 3 | - | - | 3 |
| Yader Reyes | 1 | 2 | 1 | - | 3 | - | 1 | - | 3 | - | - | 3 |
| Juan Guzman | 1 | - | 3 | - | 3 | - | - | 1 | 3 | 1 | - | 3 |
| Ricardo Salazar | 2 | 2 | 3 | 3 | 2 | - | 1 | 1 | 5 | - | - | 2.5 |
| Chris Penso | 2 | 2 | 2 | 4 | - | 1 | - | 1 | 4 | 1 | - | 2 |
| Michael Kennedy | 1 | 1 | 1 | 2 | - | - | 1 | - | 2 | - | 1 | 2 |
| 1 | 1 | 1 | - | 2 | 1 | - | - | 2 | - | - | 2 | |
| Paul Ward | 1 | - | 2 | 2 | - | 1 | - | - | 2 | - | - | 2 |
| Hilario Grajeda | 4 | 3 | 3 | 2 | 4 | 3 | 1 | - | 6 | - | 1 | 1.5 |
| Terry Vaughn | 2 | 1 | 2 | 1 | 2 | - | 2 | - | 3 | - | - | 1.5 |
| Edvin Jurisevic | 2 | 1 | 2 | - | 3 | 1 | - | 1 | 3 | 1 | - | 1.5 |
| Jasen Anno | 2 | - | 3 | 1 | 2 | - | 1 | 1 | 3 | - | 1 | 1.5 |
| Kevin Stott | 3 | 3 | 1 | - | 4 | 2 | 1 | - | 4 | 1 | - | 1.33 |
| Mark Geiger | 1 | 1 | - | 1 | - | 1 | - | - | 1 | - | - | 1 |
| Niko Bratsis | 1 | - | 1 | 1 | - | - | 1 | - | 1 | - | - | 1 |
| Jair Marrufo | 1 | 1 | - | 1 | - | - | - | 1 | 1 | - | 1 | 1 |
| Elias Bazakos | 1 | 1 | - | 1 | - | 1 | - | - | 1 | - | - | 1 |
| Geoff Gamble | 1 | - | 1 | - | 1 | - | - | 1 | 1 | - | - | 1 |
| Alex Prus | 3 | 2 | - | - | 2 | 2 | 1 | - | 2 | - | - | 0.67 |
| Baldomero Toledo | 2 | - | - | - | - | - | 1 | 1 | - | - | - | 0 |
| Andrew Chapin | 1 | - | - | - | - | - | - | 1 | - | - | - | 0 |
| 34 | 21 | 29 | 19 | 31 | 13 | 12 | 9 | 50 | 4 | 4 | 1.47 |
FH = First half,
SH = Second half,
H = Home,
A = Away,
W = Matches won,
D = Matches drawn,
L = Matches lost,
C/M = Cards/Match.