Velez Sarsfield took top spot in the fledgling Argentinian Clausura table by beating All Boys 3-0 at the Estadio Jose Amalfitani on Tuesday.
Mauro Zarate (29), Jorge Correa (49) and substitute Ramiro Caseres (73) scored the goals that earned Velez a second win from their three games to lift them above rivals Estudiantes, who host Lanus next.
In third place are Tigre, who clinched a 1-0 victory at 10-man Racing Club.
Ignacio Canuto scored the only goal of the game in the ninth minute and Racing suffered a late setback in their bid to force a draw when Fernando Ortiz saw red on the stroke of full time.
Arsenal Sarandi won for the first time this season by downing Olimpo 2-0 at the Estadio Roberto Natalio Carminatti.
Goals from Julio Cesar Furch (44) and Ramiro Carrera (88) lifted the Viaduct Men into a share of ninth place while Olimpo are eighth.