30 April - 2 May 2019Colo Colo – Universidad Catolica
Referee: Rodolpho Toski (BRA, photo)
Assistant Referee 1: Fabricio Vilarinho (BRA)
Assistant Referee 2: Guilherme Camilo (BRA)
Fourth Official: Dewson Fretas (BRA)
Referee Assessor: Henry Gambetta (PER)
Atletico Cerro – UTC Cajamarca
Referee: Angel Arteaga (VEN)
Assistant Referee 1: Luis Murillo (VEN)
Assistant Referee 2: Lubin Torrealba (VEN)
Fourth Official: Juan Soto (VEN)
Referee Assessor: Ricardo Casas (ARG)
Sol de America – Atletico Mineiro
Referee: Ivo Mendez (BOL)
Assistant Referee 1: Jose Antelo (BOL)
Assistant Referee 2: Reluy Vallejos (BOL)
Fourth Official: Juan Garcia (BOL)
Referee Assessor: Roberto Perassi (BRA)
Deportivo Binacional – Independiente
Referee: Cristian Garay (CHI)
Assistant Referee 1: Raul Orellana (CHI)
Assistant Referee 2: Claudio Urrutia (CHI)
Fourth Official: Piero Maza (CHI)
Referee Assessor: Manuel Bernal (PAR)
Estudiantes Merida – Argentinos Juniors
Referee: Nicolas Gallo (COL)
Assistant Referee 1: Sebastian Vela (COL)
Assistant Referee 2: Miguel Roldan (COL)
Fourth Official: John Ospina (COL)
Referee Assessor: Jose Carpio (ECU)
Guarani – Deportivo Cali
Referee: Facundo Tello (ARG)
Assistant Referee 1: Maximiliano Del Yesso (ARG)
Assistant Referee 2: Lucas Germanotta (ARG)
Fourth Official: Mauro Vigliano (ARG)
Referee Assessor: Carlos Pastorino (URU)
