Arsenal Sarandi claimed their third win of the Apertura season with a 1-0 victory over Banfield on Monday.
Arsenal had had a mixed start to the campaign, winning two and losing two of their games so far, but Sebastian Palacios' 59th-minute goal moved them on to nine points in the fledgling table.
Miguel Borja scored at both ends for Olimpo as they drew 1-1 against Lanus.
The Colombian put through his own net in the 12th minute but gained some redemption 20 minutes from time as he struck the equaliser.
In the day's other game, Tigre and Quilmes played out a goalless draw.
Source: FIFA.com