Champions Boca Juniors completed an unbeaten march through the Apertura season with a 1-0 victory over 10-man All Boys.
Boca extended their unbeaten run to 29 games stretching into last season as they edged out lowly All Boys, hardly having it all their own way as Dario Cvitanich got the goal 11 minutes from time despite Boca having already played half an hour against 10 men following the dismissal of Juan Rodriguez early in the second half.
Belgrano Cordoba sit third after seeing off Arsenal Sarandi 1-0 thanks to a 13th minute strike from Franco Vazquez.
Juan Sebastian Veron's decision to postpone his retirement for another six months did not prevent a standing ovation for the veteran midfielder at the end of Estudiantes' 2-0 victory over Union Santa Fe, which came courtesy of goals either side of half-time from Mauro Boselli and Cristian Cellay.
Santiago Naguel scored moments after coming on as a substitute to give Argentinos Juniors a 1-0 win over Olimpo.