USA
MLS
Referees 2012
| First name | Surname | Place of birth | Games | Yellow cards awarded | Red cards awarded | Ratio YCs to games | Ratio RCs to games |
|---|---|---|---|---|---|---|---|
| Jasen | Anno | 5 | 12 | 2 | 2.4 | 0.4 | |
| Jozef | Batko | 1 | 4 | 0 | 4.0 | 0.0 | |
| Elias | Bazakos | 6 | 17 | 2 | 2.8 | 0.3 | |
| Fotis | Bazakos | 6 | 11 | 0 | 1.8 | 0.0 | |
| Andrew | Chapin | 1 | 3 | 0 | 3.0 | 0.0 | |
| Allen | Chapman | 10 | 34 | 1 | 3.4 | 0.1 | |
| Ismail | Elfath | 8 | 21 | 4 | 2.6 | 0.5 | |
| Drew | Fischer | 6 | 15 | 0 | 2.5 | 0.0 | |
| Matthew | Foerster | 6 | 22 | 0 | 3.7 | 0.0 | |
| Geoff | Gamble | 11 | 33 | 0 | 3.0 | 0.0 | |
| David | Gantar | 7 | 14 | 4 | 2.0 | 0.6 | |
| Mark | Geiger | 16 | 56 | 10 | 3.5 | 0.6 | |
| Jorge | Gonzalez | 15 | 47 | 1 | 3.1 | 0.1 | |
| Hilario | Grajeda | 19 | 70 | 2 | 3.7 | 0.1 | |
| Juan | Guzman | 13 | 50 | 2 | 3.8 | 0.2 | |
| Ramon | Hernandez | 4 | 16 | 0 | 4.0 | 0.0 | |
| Edin | Jurisevic | 14 | 44 | 0 | 3.1 | 0.0 | |
| Mark | Kadlecik | 7 | 28 | 2 | 4.0 | 0.3 | |
| Michael | Kennedy | 6 | 22 | 1 | 3.7 | 0.2 | |
| Jair | Marrufo | 18 | 47 | 3 | 2.6 | 0.2 | |
| Abbey | Okulaja | 5 | 16 | 1 | 3.2 | 0.2 | |
| Chris | Penso | 20 | 44 | 2 | 2.2 | 0.1 | |
| Silviu | Petrescu | 19 | 60 | 1 | 3.2 | 0.1 | |
| Yadar | Reyes | 4 | 9 | 1 | 2.2 | 0.2 | |
| Silvia | Reyes | 1 | 3 | 0 | 3.0 | 0.0 | |
| José Carlos | Rivero | 8 | 32 | 4 | 4.0 | 0.5 | |
| Ricardo | Salazar | 4 | 16 | 2 | 4.0 | 0.5 | |
| Ricardo | Salazar | 13 | 37 | 2 | 2.8 | 0.2 | |
| Sorin | Stoica | 9 | 39 | 1 | 4.3 | 0.1 | |
| Kevin | Stott | 19 | 55 | 1 | 2.9 | 0.1 | |
| Baldomero | Toledo | 21 | 55 | 1 | 2.6 | 0.0 | |
| Terry | Vaughn | 3 | 13 | 0 | 4.3 | 0.0 | |
| Armando | Villareal | 8 | 21 | 5 | 2.6 | 0.6 | |
| Paul | Ward | 7 | 15 | 0 | 2.1 | 0.0 |