Boca Juniors picked up its first victory of the Argentinian Apertura season with a 2-0 home success against Tigre.
Cristian Chavez and Lucas Viatri netted the goals in the space of nine minutes just after the hour to give Boca a welcome boost after its 3-0 opening loss at Quilmes.
Racing Club and Godoy Cruz also clinched their first three-point hauls after starting the campaign with respective draws against Atletico Rafaela and All Boys.
Second-half strikes from Fernando Ortiz and Adrian Centurion earned Racing a 2-0 triumph at Argentinos Juniors.
Nicolas Castro's strike 18 minutes from time handed Godoy Cruz a 1-0 win at 10-man Union Santa Fe, which slumped to its second straight loss after having Pablo Miguez sent off in the 37th minute.