7 August 2012Olimpia – Danubio
Referee: Diego Abal (ARG, photo)
Assistant Referee 1: Ricardo Casas (ARG)
Assistant Referee 2: Juan Belatti (ARG)
Fourth Official: Enrique Caceres (PAR)
Cobreloa – Tacuary
Referee: Liber Prudente (URU)
Assistant Referee 1: Marcelo Costa (URU)
Assistant Referee 2: Carlos Changala (URU)
Fourth Official: Eduardo Gamboa (CHI)
8 August 2012
Barcelona – Deportivo
Referee: Nestor Pitana (ARG)
Assistant Referee 1: Gustavo Rossi (ARG)
Assistant Referee 2: Ivan Nunez (ARG)
Fourth Official: Daniel Salazar (ECU)
Cerro Porteno – O´Higgins
Referee: Martin Vazquez (URU)
Assistant Referee 1: Mauricio Espinosa (URU)
Assistant Referee 2: Carlos Pastorino (URU)
Fourth Official: Julio Quintana (PAR)
9 August 2012
Universidad Catolica – Blooming
Assistant Referee 1: Roberto Braatz (BRA)
Assistant Referee 2: Marcio Santiago (BRA)
Fourth Official: Claudio Puga (CHI)
Oriente Petrolero – Guarani
Referee: Patricio Polic (CHI)
Assistant Referee 1: Sergio Roman (CHI)
Assistant Referee 2: Juan Maturana (CHI)
Fourth Official: Joaquin Antequera (BOL)
Mineros – La Equidad
Referee: Carlos Vera (ECU)
Assistant Referee 1: Carlos Herrera (ECU)
Assistant Referee 2: Luis Vera (ECU)
Fourth Official: Mayker Gomez (VEN)
