| Referee | Games |  |  | Cards per game |
|---|
| Julio Bascuñán | 2 | 8 | 0 | 4.0 (4.0 / 0.0) | |
| Victor Carrillo | 1 | 3 | 0 | 3.0 (3.0 / 0.0) | |
| Raphael Claus | 1 | 1 | 0 | 1.0 (1.0 / 0.0) | |
| Anderson Daronco | 1 | 2 | 1 | 3.0 (2.0 / 1.0) | |
| Mario Díaz de Vivar | 2 | 10 | 2 | 6.0 (5.0 / 1.0) | |
| Diego Haro | 1 | 6 | 0 | 6.0 (6.0 / 0.0) | |
| Alexis Herrera | 1 | 5 | 0 | 5.0 (5.0 / 0.0) | |
| Patricio Loustau | 1 | 9 | 1 | 10.0 (9.0 / 1.0) | |
| Esteban Ostojich | 1 | 2 | 0 | 2.0 (2.0 / 0.0) | |
| Wilton Pereira Sampaio | 2 | 10 | 0 | 5.0 (5.0 / 0.0) | |
| Néstor Pitana | 2 | 7 | 0 | 3.5 (3.5 / 0.0) | |
| Fernando Rapallini | 1 | 4 | 0 | 4.0 (4.0 / 0.0) | |
| Andrés Rojas Noguera | 1 | 2 | 0 | 2.0 (2.0 / 0.0) | |
| Wilmar Roldan | 3 | 14 | 1 | 5.0 (4.7 / 0.3) | |
| Roberto Tobar | 3 | 20 | 2 | 7.4 (6.7 / 0.7) | |
| Jesús Valenzuela Sáez | 1 | 4 | 0 | 4.0 (4.0 / 0.0) | |
| Roddy Zambrano | 2 | 12 | 0 | 6.0 (6.0 / 0.0) | |
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